---
title: Open Source Stack
description: Explore the open-source tools, libraries, and frameworks in the Polkadot and Kusama tech stack for decentralized application development.
url: https://developer.polkadot.com/wiki/general/build-open-source/
word_count: 6627
token_estimate: 24971
version_hash: sha256:e87870410792a4a6c7d6f05d4287d6502460cbf7a285ab3aaf8c34283335b323
last_updated: 2026-10-28T08:43:55+00:00
---

# Open Source Polkadot Stack 

!!!caution "Do your research before using open-source tools"
    The tools listed here are open-source and are linked directly to their source code. Before using these tools to build your projects, always [do your research](./how-to-dyor.md) and be aware of [scams](./scams.md).

This page aims to provide an overview of the open-source Polkadot Tech Stack.

This is a living document, and we rely on everyone to contribute and help maintain
it. [**Please feel free to make edits and additions via pull requests**](#contributing). We
apologize if we missed your project!

---

## About

The Polkadot Tech Stack is a subset of the Web 3.0 Tech Stack, which consists of the **open-source**
technologies contributing to and relying on [Polkadot](https://polkadot.network/). It is meant to be used
for decentralized application (Dapp) development within numerous verticals, including DeFi, Gaming,
Provenance and many others not pictured below.



```
|------|--------|------------|
| DeFi | Gaming | Provenance |
|______|________|____________|
            Dapps
|--------------------------/-|
| Explorers, Wallets      /  |
|------------------------/---|
| Tools, Apis, Languages/    |
|----------------------/-----|
| 2nd layer protocols /      |
|--------------------/-------|
| Chains            /  other |
|------------------/---    --|
| *Polkadot*      |   tech   |
|------------------\---------|
| P2P, Crypto, Wasm \        |
|--------------------\-------|
```

## Layers of Polkadot Stack

In the below sections, you can find a list of different layers of the Polkadot Stack.

**Maintenance Status**:

- 🟢 Actively maintained
- 🟡 Stale (no activity on the main branch for one month)
- ⚪ Unmaintained (no activity on the main branch for more than three months)

### Wallets

| Components             | Existing projects                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Potentially interesting projects                                                                                                                                                                                                                                                  |
| ---------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Web Wallets    | [Multix](https://github.com/ChainSafe/Multix) 🟢, [Polkasafe](https://github.com/polkasafe/polkasafe-ui) ⚪, [polkadot-js/apps](https://github.com/polkadot-js/apps) 🟢, [Talisman Web Application](https://github.com/TalismanSociety/talisman-web) 🟢, [mydotwallet](https://github.com/enkryptcom/mydotwallet) ⚪, [Sub ID](https://github.com/dappforce/subid) ⚪, [Primis](https://github.com/Primis-Labs/client) ⚪, [Sakura](https://github.com/w3finance/sakura) ⚪, [Web3Box](https://github.com/w3f-grants-archive/Web3Box-apps) ⚪, [Coong Wallet](https://github.com/CoongCrafts/coong-wallet) ⚪, [Subscan Multisig UI - React](https://github.com/itering/subscan-multisig-react) 🟡, [Subscan Multisig UI](https://github.com/itering/subscan-multisig-ui) ⚪, [Dorafactory-Multisig](https://github.com/DoraFactory/dorafactory-multisig) ⚪, [Capi Multisig App](https://github.com/paritytech/capi-multisig-app) ⚪| User-friendly Wallet based on the [Recovery Pallet](https://github.com/paritytech/polkadot-sdk/tree/master/substrate/frame/recovery), Web wallets focused on user-onboarding (e.g. using [localStorage](https://github.com/near/near-wallet)) |
| Desktop Wallets | [nova-spektr](https://github.com/novasamatech/nova-spektr) 🟢, [Omni desktop](https://github.com/w3f-grants-archive/omni-desktop-prototype) ⚪| Enterprise Wallets |
| Browser Extensions     | [Talisman-Extension](https://github.com/TalismanSociety/talisman) 🟢, [SubWallet-Extension](https://github.com/Koniverse/SubWallet-Extension) 🟢, [Enkrypt](https://github.com/enkryptcom/enKrypt) 🟡, [Polkadot-JS](https://github.com/polkadot-js/extension) 🟢, [PolkaGate](https://github.com/PolkaGate/polkagate-extension) 🟢, [Trust Wallet Extension](https://github.com/trustwallet) 🟢, [Doter](https://github.com/ChainBridgeNetworkTeam/Doter) ⚪, [Speckle OS](https://github.com/GetSpeckle/speckle-browser-extension) ⚪, [Kuma Cross-chain Wallet](https://github.com/blockcoders/kuma-wallet) ⚪| Sign-in with your Polkadot, Kusama, etc. account.                                                                                                                                                                                                                                 |
| Mobile Wallets         | [Nova Wallet iOS](https://github.com/novasamatech/nova-wallet-ios) 🟢, [Nova Wallet Android](https://github.com/novasamatech/nova-wallet-android) 🟢, [Polkadot Vault](https://github.com/paritytech/parity-signer) 🟡, [Fearless Wallet Android](https://github.com/soramitsu/fearless-Android) 🟢, [Fearless Wallet iOS](https://github.com/soramitsu/fearless-iOS) ⚪, [Trust Wallet](https://github.com/trustwallet) 🟢, [SubWallet-Mobile](https://github.com/Koniverse/SubWallet-Mobile) 🟢, [Kampela](https://github.com/Kalapaja/kampela-firmware) ⚪, [AirGap](https://github.com/airgap-it/airgap-wallet) 🟢, [Interstellar Network](https://github.com/Interstellar-Network/wallet-app) ⚪, [Lunie](https://github.com/luniehq/lunie) ⚪, [Polkawallet](https://github.com/polkawallet-io/polkawallet-flutter) ⚪, [imToken](https://github.com/consenlabs/token-core) ⚪, [Stylo](https://github.com/stylo-app/stylo) ⚪, [Fractapp](https://github.com/fractapp/fractapp/) ⚪, [Hashed Wallet](https://github.com/hypha-dao/hashed-wallet) ⚪|
| Burner Wallets/Faucet/Gifts  | [dotdrop](https://github.com/hamidra/dotdrop) ⚪, [KodaDot](https://github.com/vue-polkadot/apps) ⚪, [Astar Faucet Bot](https://github.com/AstarNetwork/astar-faucet-bot) ⚪, [Generic sybil-resistant faucet](https://github.com/karooolis/sybil-resistant-substrate-faucet) ⚪| Faucet (a sybil-resistant way to receive free tokens)                                                                                                                                                                                                                             |
| Wallet Plugins         | [Metamask-Snap by Chainsafe](https://github.com/ChainSafe/metamask-snap-polkadot) ⚪|
| CLI Wallet             | [Subwallet](https://github.com/yxf/subwallet) ⚪, [Proxy-hot-wallet](https://github.com/canontech/proxy-hot-wallet) ⚪|
| Hardware Wallets       | [Ledger Polkadot](https://github.com/ZondaX/ledger-polkadot) ⚪, [Ledger Kusama](https://github.com/Zondax/ledger-kusama) ⚪, [Ledger Statemint](https://github.com/Zondax/ledger-statemint) ⚪, [Ledger Statemine](https://github.com/Zondax/ledger-statemine) ⚪| Trezor                                                                                                                                                                                                                                                                            |
| OAuth2-compatible Wallets | [DOT Login](https://github.com/singkeo/dot-login) ⚪, [Kzero](https://github.com/kzero-xyz/kzero-circuit) ⚪| |

### User Interface

| Components             | Existing projects                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | Potentially interesting projects                                                                                                                                                                                                                                                  |
| ---------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Block Explorers        | [Calamar](https://github.com/topmonks/calamar) ⚪, [Polkascan](https://github.com/polkascan/explorer-api) ⚪, [Polkastats](https://github.com/Colm3na/polkastats-backend) ⚪, [Subscan](https://github.com/itering/subscan) 🟡, [Statescan](https://github.com/opensquare-network/statescan-v2) 🟡, [Edgscan](https://github.com/edgeware-builders/edgscan) ⚪, [Sirato](https://github.com/web3labs/epirus-substrate) ⚪, [ink! Explorer API](https://github.com/blockcoders/ink-substrate-explorer-api) ⚪, [Substats](https://github.com/CESSProject/substats) ⚪, [Hybrid Block Explorer](https://github.com/hybrid-explorer/hybrid-dapp) ⚪|  Mempool focused explorer (including parachain transaction)                                                                                                                                                                                           |
| Validator Dashboards   | [Polkadot Telemetry](https://github.com/paritytech/substrate-telemetry) ⚪, [Polkacube](https://github.com/hashquark-io/polkacube-frontend) ⚪, [YieldScan](https://github.com/buidl-labs/YieldScan) ⚪, [Hubble](https://github.com/w3f-community/hubble/tree/master/app/controllers/polkadot) ⚪, [Cyclops](https://github.com/ArthurHoeke/cyclops) ⚪, [Web3Go](https://github.com/web3go-xyz/web3go-xyz-v2) ⚪, [1kv insights](https://github.com/MathCryptoDoc/insights-1kv) ⚪|
| Validator Dashboards   | [Polkadot Telemetry](https://github.com/paritytech/substrate-telemetry) ⚪, [Polkacube](https://github.com/hashquark-io/polkacube-frontend) ⚪, [YieldScan](https://github.com/buidl-labs/YieldScan) ⚪, [Hubble](https://github.com/w3f-community/hubble/tree/master/app/controllers/polkadot) ⚪, [Cyclops](https://github.com/ArthurHoeke/cyclops) ⚪, [Web3Go](https://github.com/web3go-xyz/web3go-xyz-v2) ⚪, [1kv insights](https://github.com/MathCryptoDoc/insights-1kv) ⚪|
| Node Explorers         | [Polkadot Node Explorer](https://github.com/protos-research/polkadot-node-explorer) ⚪|
| NFT Explorer           | [NFT Explorer for Kusama & Polkadot](https://github.com/kodadot/nft-gallery) ⚪|
| Governance Dashboards  | [Polkadot Delegation Dashboard](https://github.com/paritytech/governance-ui) ⚪, [dotreasury](https://github.com/opensquare-network/dotreasury) 🟡, [Bright Treasury](https://github.com/bright/bright-tresury) ⚪, [OpenSquare offchain voting](https://github.com/opensquare-network/collaboration) 🟢, [OpenGov Insights](https://github.com/wpank/open-gov-insights) ⚪, [Treasury Tracker](https://github.com/stake-plus/treasury-tracker) ⚪, [OpenGov CLI](https://github.com/joepetrowski/opengov-cli) 🟢| UI for the Kusama and/or Polkadot treasury (see [bounty module](https://github.com/paritytech/substrate/pull/5715)), UI for Parachain Lease Offering (PLO)                                                                                               |
| Staking                | [Staking Rewards Collector](https://github.com/w3f/staking-rewards-collector) 🟡, [Staking Rewards Viewer](https://github.com/jackson-harris-iii/staking-rewards-viewer) ⚪, [Polkadot Staking Site](https://github.com/cryptolab-network/polkadot-staking-site) ⚪, [Polkadot Staking Dashboard](https://github.com/paritytech/polkadot-staking-dashboard) 🟢, [Polkadot/Kusama Validator Selector](https://github.com/James-Sangalli/dot-validator-selector) ⚪, [Staking Income CSV Generator](https://github.com/James-Sangalli/dot-staking-income) ⚪|
| Bridge UI              | [Parity Bridges UI](https://github.com/paritytech/parity-bridges-ui) ⚪, [Donut Interface (Steem - Dot)](https://github.com/nutbox-dao/donut-interface) ⚪, [Plutonication](https://github.com/RostislavLitovkin/PlutonicationServer) ⚪|                                                                                                                                                                                                                                                                                   |
| Parachain/Crowdloan    | [PolkAuction](https://github.com/CrommVardek/polk-auction-ui) ⚪, [Crowdloan Front End Template](https://github.com/10clouds/crowdloan-template) ⚪, [Slothunter](https://github.com/hack-ink/slothunter/) ⚪|                                                                                                                                                                                                                                                                      |
| Identicon              | [PolkadotWebIdenticon](https://github.com/RidOne-technologies/polkadot-web-identicon) ⚪, [Polkadot Angular IdentIcon](https://github.com/RidOne-technologies/polkadot-angular-identicon) ⚪, [Bird Identicon](https://github.com/Noc2/Bird-Identicon) ⚪|
| Coretime               | [Lastic](https://github.com/LasticXYZ/LasticUI) ⚪, [RegionX](https://github.com/RegionX-Labs/RegionX-Node) ⚪|
| Other                  | [Polkadot Cloud](https://polkadot.cloud) 🟢, [ĐÓTConsole](https://github.com/tien/dot-console) 🟢, [KappaSigmaMu Fratority](https://github.com/KappaSigmaMu/ksm-app) 🟢, [DAOSign](https://github.com/DAOsign/daosign-ink-js-sdk/tree/main) ⚪, [Quadratic Funding Webapp](https://github.com/OAK-Foundation/quadratic-funding-webapp) ⚪, [Polkawatch](https://gitlab.com/polkawatch/polkawatch), [Bytepay](https://github.com/bytepayment/bytepay) ⚪, [charging-management-platform](https://github.com/Delmonicos/charging-management-platform) ⚪, [subidentity-webapp](https://github.com/TDSoftware/subidentity-webapp) ⚪, [OpenSquare Paid QA](https://github.com/opensquare-network/paid-qa/) ⚪, [DotPulse](https://github.com/CrossChainLabs-DOT/dotpulse-api) ⚪, [Rubeus Keeper](https://github.com/bsn-si/rubeus-smartcontract) ⚪, [Polkaflow](https://github.com/justmert/eco-flow-frontend) ⚪, [ChainViz](https://github.com/helikon-labs/chainviz) ⚪, [Dotsight](https://github.com/fidi-tech/dotsight) ⚪| [zkLogin](https://docs.sui.io/build/zk_login), Portfolio Viewer like Zapper or Zerion                                                                                                                                                                                                                                            
| Coretime               | [Lastic](https://github.com/LasticXYZ/LasticUI) ⚪, [RegionX](https://github.com/RegionX-Labs/RegionX-Node) ⚪|
| Other                  | [Polkadot Cloud](https://polkadot.cloud) 🟢, [ĐÓTConsole](https://github.com/tien/dot-console) 🟢, [KappaSigmaMu Fratority](https://github.com/KappaSigmaMu/ksm-app) 🟢, [DAOSign](https://github.com/DAOsign/daosign-ink-js-sdk/tree/main) ⚪, [Quadratic Funding Webapp](https://github.com/OAK-Foundation/quadratic-funding-webapp) ⚪, [Polkawatch](https://gitlab.com/polkawatch/polkawatch), [Bytepay](https://github.com/bytepayment/bytepay) ⚪, [charging-management-platform](https://github.com/Delmonicos/charging-management-platform) ⚪, [subidentity-webapp](https://github.com/TDSoftware/subidentity-webapp) ⚪, [OpenSquare Paid QA](https://github.com/opensquare-network/paid-qa/) ⚪, [DotPulse](https://github.com/CrossChainLabs-DOT/dotpulse-api) ⚪, [Rubeus Keeper](https://github.com/bsn-si/rubeus-smartcontract) ⚪, [Polkaflow](https://github.com/justmert/eco-flow-frontend) ⚪, [ChainViz](https://github.com/helikon-labs/chainviz) ⚪, [Dotsight](https://github.com/fidi-tech/dotsight) ⚪| [zkLogin](https://docs.sui.io/build/zk_login), Portfolio Viewer like Zapper or Zerion                                                                                                                                                                                                                                            

### Tools, APIs, and Languages

| Components                      | Existing projects                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | Potentially interesting projects                                                                                 |
| ------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------- |
| Runtime/Parachain frameworks                       | [Polkadot Blockchain SDK](https://github.com/paritytech/polkadot-sdk) 🟢, [Gosemble](https://github.com/LimeChain/gosemble) ⚪, [Subsembly](https://github.com/LimeChain/subsembly) ⚪, [Parachain utilities](https://github.com/AcalaNetwork/parachain-utilities) ⚪, [Gantree](https://github.com/gantree-io/gantree-core) ⚪, [Cryptex](https://github.com/ideal-lab5) 🟢, [Lollipop](https://github.com/LollipopHQ/sbpf-on-polkavm) ⚪| Tools to create parachains with other frameworks, like the [Cosmos SDK](https://github.com/cosmos/cosmos-sdk) or [Polygon CDK](https://github.com/0xPolygon/cdk-validium-node)  |
| Client Libraries | [Polkadot-API - TypeScript](https://github.com/polkadot-api/polkadot-api) 🟢, [Reactive DOT - TypeScript](https://github.com/tien/reactive-dot) 🟢, [Capi - TypeScript](https://github.com/paritytech/capi) ⚪, [sub-api](https://github.com/kodadot/packages/tree/main/sub-api) ⚪, [Go](https://github.com/centrifuge/go-substrate-rpc-client) ⚪, [.Net](https://github.com/usetech-llc/polkadot_api_dotnet) ⚪, [.NET Standard 2.0](https://github.com/SubstrateGaming/Substrate.NET.API) ⚪, [Substrate .NET Toolchain](https://github.com/SubstrateGaming/Substrate.NET.Toolchain) ⚪, [C++](https://github.com/usetech-llc/polkadot_api_cpp) ⚪, [C](https://github.com/finoabanking/substrate-c-tool) ⚪, [Haskell](https://github.com/airalab/hs-web3) 🟡, [JavaScript](https://github.com/polkadot-js/api) 🟢, [Substrate API Sidecar - TypeScript](https://github.com/paritytech/substrate-api-sidecar) 🟢, [Python](https://github.com/polkascan/py-substrate-interface) 🟡, [Java (+ Android)](https://github.com/emeraldpay/polkaj) ⚪, [Substrate Client Java](https://github.com/strategyobject/substrate-client-java) ⚪, [Rust SCS](https://github.com/scs/substrate-api-client) 🟡, [Rust Parity (subxt)](https://github.com/paritytech/subxt) 🟢, [subxtpy](https://github.com/philoniare/subxtpy) ⚪, [Rust pdotc](https://github.com/trevor-crypto) [PHP (gmajor-encrypt)](https://github.com/gmajor-encrypt/php-substrate-api) ⚪, [PHP (neha0921)](https://github.com/neha0921/substrate-interface-package) ⚪, [RPC-Ethereum](https://github.com/paritytech/frontier) 🟢, [Swift](https://github.com/tesseract-one/Substrate.swift) ⚪, [Kotlin](https://github.com/NodleCode/substrate-client-kotlin) ⚪, [substrate-client-kotlin](https://github.com/sublabdev/substrate-client-kotlin) ⚪, [substrate-client-swift](https://github.com/sublabdev/substrate-client-swift) ⚪, [Dart](https://github.com/rankanizer/polkadart) 🟢, [Substrate Core Polywrapper](https://github.com/polywrap/integrations) ⚪, [Substrate SDK iOS](https://github.com/novasamatech/substrate-sdk-ios) 🟢, [Substrate SDK Android](https://github.com/novasamatech/substrate-sdk-android) 🟡, [Dedot - TypeScript](https://github.com/dedotdev/dedot) 🟢, [Polkadart](https://github.com/leonardocustodio/polkadart) 🟢|                                                                                                                  |
| RPC Gateway      | [Subway](https://github.com/AcalaNetwork/subway) 🟡|               |
| Substrate Contract clients      | [PatractGo](https://github.com/patractlabs/go-patract) ⚪|                                                                                                                  |
| Easy Runtime Development        | [Subalfred](https://github.com/hack-ink/subalfred) ⚪, [substrate-stencil](https://github.com/kaichaosun/substrate-stencil) ⚪, [Play Substrate](https://github.com/kaichaosun/play-substrate) ⚪, [Substrate Playground](https://github.com/paritytech/substrate-playground) ⚪, [AssemblyScript Runtime Generation](https://github.com/LimeChain/as-substrate-runtime) ⚪, [Substrate Package Manager](https://github.com/clearloop/sup) ⚪, [Subsembly: Framework for developing AssemblyScript Substrate Runtimes](https://github.com/LimeChain/subsembly) ⚪, [dependency diener](https://github.com/bkchr/diener) ⚪|                                                                                                                  |
| IDE Plugins                  | [Substrate Marketplace VS Code Plugin](https://github.com/paritytech/vscode-substrate) ⚪, [VS Code Plugin](https://github.com/everstake/vscode-plugin-substrate) ⚪, [Atom Code Plugin](https://github.com/everstake/atom-plugin-substrate) ⚪, [Zombienet extension](https://github.com/paritytech/zombienet-vscode-extension) ⚪|                                       | Substrate Analyzer |
| Runtime/Pallet Security                | [Substrate Runtime Fuzzer](https://github.com/srlabs/substrate-runtime-fuzzer) 🟢, [Substrate Toml Lint](https://github.com/shawntabrizi/substrate-toml-lint) ⚪, [K specifications](https://github.com/kframework/wasm-semantics) 🟢, [PolPatrol - Polkadot Runtime Checker](https://github.com/ChainSecurity/polpatrol) ⚪, [pallet-verifier](https://github.com/davidsemakula/pallet-verifier) 🟡| Automated Runtime checking tools, economic audit simulator such as [gauntlet.network](https://gauntlet.network/) | 
| Smart Contract Languages        | [ink!](#ink-smart-contracts) 🟢, [Ask!](https://github.com/ask-lang/ask) ⚪, [Subscript](https://github.com/slickup/subscript) ⚪, [Solang](https://github.com/hyperledger-labs/solang) 🟢, [pallet-move](https://github.com/eigerco/pallet-move) ⚪, [Move VM Substrate](https://github.com/pontem-network/sp-move) ⚪, [Move smart contract by Neatcoin](https://github.com/neatcoin/neatcoin) ⚪, [eBPF Contracts Hackathon](https://github.com/pepyakin/substrate-seal-ebpf) ⚪, [PolkaVM](https://github.com/koute/polkavm) 🟢| Functional Programming Languages, other languages with developed toolchains                                      |
| Testing                         | [Polkadot introspector](https://github.com/paritytech/polkadot-introspector) 🟢, [Subshell](https://github.com/subdirectory/subshell) ⚪, [substrate-simnode](https://github.com/polytope-labs/sc-simnode) 🟡, [Halva](https://github.com/halva-suite/halva) ⚪, [Redspot](https://github.com/patractlabs/redspot) ⚪, [MixBytes Tank](https://github.com/mixbytes/tank) ⚪, [sub-flood](https://github.com/NikVolf/sub-flood) ⚪, [Substrate debug-kit](https://github.com/paritytech/substrate-debug-kit) ⚪, [Asset CLI tool](https://github.com/JesseAbram/asset_cli_tool) ⚪, [sub_crash](https://github.com/JesseAbram/unfinished_testing_tool) ⚪, [subwasm](https://github.com/chevdor/subwasm) ⚪, [subsee](https://github.com/ascjones/subsee) ⚪, [polkadot-lab](https://github.com/w3f/polkadot-lab) ⚪,  [RPC-perf](https://github.com/dwellir-public/rpc-perf/) ⚪|
| Static Analysis                         | [Substrace](https://github.com/KaiserKarel/substrace) ⚪, [Static analyzer for Substrate FRAME's pallets](https://github.com/simon-perriard/saft) ⚪, [CoinFabrik Scout](https://github.com/CoinFabrik/scout-audit) 🟡, [pallet-verifier](https://github.com/davidsemakula/pallet-verifier) 🟡|
| Formal Verification             | [pallet-verifier](https://github.com/davidsemakula/pallet-verifier) 🟡, [K specifications](https://github.com/kframework/wasm-semantics) 🟢|
| Testnet                         | [Zombienet](https://github.com/paritytech/zombienet) 🟢, [Chopsticks](https://github.com/AcalaNetwork/chopsticks) 🟢, [Polkadot Launch](https://github.com/paritytech/polkadot-launch) ⚪, [polkadot-starship](https://github.com/koute/polkadot-starship) ⚪, [Fork off Substrate](https://github.com/maxsam4/fork-off-substrate) ⚪, [try-runtime-cli](https://github.com/paritytech/try-runtime-cli) 🟡, [Parachain Launch](https://github.com/open-web3-stack/parachain-launch) ⚪, [Larch Zombienet GUI](https://github.com/Zeeve-App/larch) ⚪|
| Benchmarking                    | [Benchmarking CLI](https://github.com/paritytech/polkadot-sdk/tree/master/substrate/utils/frame/benchmarking-cli) 🟢, [Polkadot sTPS](https://github.com/paritytech/polkadot-stps) ⚪, [Clockchain](https://github.com/0xekez/clockchain) ⚪, [Substrate Graph Benchmarks](https://github.com/shawntabrizi/substrate-graph-benchmarks) ⚪, [ink! & pallet benchmarking template](https://github.com/Nikhil-Desai-Talentica/substrate-node-template-benchmarking) ⚪, [smart-bench](https://github.com/paritytech/smart-bench) ⚪|
| Blockchain Indexing Engine      | [Squid SDK](https://github.com/subsquid/squid-sdk) 🟢, [Hybrid Indexer](https://github.com/hybrid-explorer/hybrid-indexer) 🟡, [Substrate Archive](https://github.com/paritytech/substrate-archive) ⚪, [PSQL Indexer](https://github.com/usetech-llc/polkadot_psql_indexer) ⚪, [Substrate Graph](https://github.com/playzero/substrate-graph) ⚪, [Subquery](https://github.com/OnFinality-io/subql) 🟢, [MBELT3](https://github.com/p2p-org/polkadot-profit-transformer) 🟡, [stick](https://github.com/kodadot/stick) ⚪, [Hyperdot](https://github.com/Infra3-Network/hyperdot) ⚪, [Identics](https://github.com/vikiival/identics) ⚪|
| Blockchain/Event Monitoring     | [Web3 Guardian](https://github.com/open-web3-stack/guardian) ⚪, [Aurras Event Manager](https://github.com/HugoByte/aurras-event-manager) ⚪, [@commonwealth/chain-events](https://github.com/hicommonwealth/chain-events) ⚪, [Massbit](https://github.com/w3f-grants-archive/massbitchain) ⚪, [Polkadot Basic Notifications](https://github.com/kianenigma/polkadot-basic-notification) ⚪, [Ocelloids](https://github.com/sodazone/ocelloids) ⚪, [Tracking Chain](https://github.com/TrackingChains/TrackingChain) ⚪,|
| Gaming                          | [Polkadot SDK for Unity](https://github.com/PolkadotPlay/Polkadot.Unity.SDK) ⚪, [Crossbow](https://github.com/dodorare/crossbow) ⚪| [Unity Asset Store](https://assetstore.unity.com/packages/decentralization/infrastructure/polkadot-sdk-for-unity-273535)                                           |
| No-code Platforms               | [EzCode's Polkadot-JS plugin on Bubble.io](https://github.com/NovaBloq/Bubble-Plugin-Polkadot.js) ⚪, [Blackprint Visual Programming Polkadot-JS module](https://github.com/Blackprint/nodes-polkadot.js) ⚪, [SubRelay](https://github.com/subrelay/interface) ⚪|                                                                                                                  |
| Wallets                         | [LunoKit](https://github.com/Luno-lab/LunoKit) 🟢, [DOT Connect](https://github.com/tien/dot-connect) 🟡, [Talisman Connect](https://github.com/TalismanSociety/talisman-connect) ⚪, [SubWallet-SubConnect](https://github.com/Koniverse/SubConnect) ⚪, [Metadata Portal](https://github.com/nova-wallet/metadata-portal) 🟢, [Tesseract](https://github.com/tesseract-one/Tesseract.rs) ⚪, [WalletConnect](https://github.com/w3f-grants-archive/walletconnect-v2-monorepo) ⚪, [BitGoJS](https://github.com/BitGo/BitGoJS/tree/master) 🟢|                                                                                                                  |
| XCM                             | [Trappist](https://github.com/paritytech/trappist) ⚪, [XCM-tools](https://github.com/Moonsong-Labs/xcm-tools) ⚪, [XCM-tools Golang](https://github.com/itering/substrate-api-rpc) ⚪,[ParaSpell XCM Tools](https://github.com/paraspell/xcm-tools) 🟢, [XBI](https://github.com/t3rn/xbi) ⚪, [XCM TS/JS SDK](https://github.com/blockcoders/xcm-sdk) ⚪, [XCMSend](https://github.com/XcmSend/app) ⚪, [XCM Monitoring Server](https://github.com/sodazone/xcm-monitoring/) 🟢, [Moonbeam Foundation XCM-SDK](https://github.com/moonbeam-foundation/xcm-sdk) 🟢|                                                                                                                  |
| Other                           | [txwrapper-core](https://github.com/paritytech/txwrapper-core) ⚪, [open-web3 JS library](https://github.com/open-web3-stack/open-web3.js) ⚪, [VM-Bridge](https://github.com/CycanTech/GVM-Bridge) ⚪, [srtool](https://github.com/paritytech/srtool) 🟢, [srtool-cli](https://github.com/chevdor/srtool-cli) ⚪, [Substrate Tip Bot](https://github.com/paritytech/substrate-tip-bot) 🟢, [ORI (Onchain Risk Intelligence)](https://github.com/syntifi/ori) ⚪, [PolkaTools](https://github.com/albertov19/PolkaTools) 🟢, [polkadot-scripts](https://github.com/paritytech/polkadot-scripts) ⚪, [Sube](https://github.com/virto-network/sube) 🟢, [data-store-sidecar](https://github.com/CESSProject/data-store-sidecar) ⚪, [SugarFunge](https://github.com/SugarFunge/sugarfunge-node) ⚪, [substrate-wasmedge](https://github.com/second-state/substrate-wasmedge) ⚪, [EightFish](https://github.com/eightfish-org/eightfish) ⚪, [Sandox](https://github.com/sandoxio/sandox) ⚪, [APK verifier](https://github.com/darwinia-network/apk-verifier/) ⚪, [ElizaOS Plugin](https://github.com/Esscrypt/plugin-polkadot) ⚪|

### ink! Smart Contracts

| Components      | Existing projects                                                                                                                                                                                                                                                                                                                                                                                                                          | Potentially interesting projects   |
| --------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------- |
| Core Libraries         | [ink!](https://github.com/paritytech/ink) 🟡, [cargo-contract](https://github.com/paritytech/cargo-contract) 🟡, [pallet-contracts](https://github.com/paritytech/polkadot-sdk/tree/master/substrate/frame/contracts) 🟢|                                    |
| Local Nodes         | [substrate-contracts-node](https://github.com/paritytech/substrate-contracts-node) ⚪, [Swanky](https://github.com/swankyhub/swanky-cli) ⚪|                                    |
| Smart Contract Development | [DRink!](https://github.com/Cardinal-Cryptography/drink) ⚪, [contracts-ui](https://github.com/paritytech/contracts-ui) ⚪, [SmartBeaver](https://github.com/Smart-Beaver), [OpenBrush](https://github.com/Brushfam/openbrush-contracts) ⚪, [Sol2Ink](https://github.com/727-Ventures/sol2ink) ⚪, [Polkadot Contract Wizard](https://github.com/protofire/polkadot-contract-wizard) ⚪, [ink-wrapper](https://github.com/Cardinal-Cryptography/ink-wrapper) ⚪, [ink-playground](https://github.com/paritytech/ink-playground) ⚪, [ink! Remix Plugin](https://github.com/blockchain-it-hr/ink-remix-plugin) ⚪, [Signac](https://github.com/standardweb3/signac/) ⚪, [ink!-boxes](https://github.com/avirajkhare00/ink-boxes/) ⚪, [ink!-smart-contract-wizard](https://github.com/avirajkhare00/ink-wizard) ⚪|
| Security & Testing         | [ink! Waterfall](https://github.com/paritytech/ink-waterfall) ⚪, [Verifier Image for ink!](https://github.com/web3labs/ink-verifier-image) ⚪, [Patron](https://github.com/Brushfam/patron-backend/) ⚪, [Inkscope Fuzzer](https://github.com/inkscopexyz/inkscope-fuzzer) ⚪|                                    |
| Frontend Development         | [ink!athon Boilerplate](https://github.com/scio-labs/inkathon) ⚪, [useink](https://github.com/paritytech/useink) ⚪, [useInkathon](https://github.com/scio-labs/use-inkathon) ⚪, [ink-typegen](https://github.com/subsquid/squid-sdk/tree/master/substrate/ink-typegen) 🟢, [Typechain Polkadot](https://github.com/Brushfam/typechain-polkadot) ⚪, [Typink!](https://github.com/dedotdev/typink) ⚪|                                    |
| IDE Plugins         | [ink! Analyzer](https://github.com/ink-analyzer/ink-analyzer) ⚪|                                    |
| Bridges         | [Dante Protocol](https://github.com/dantenetwork/protocol-stack-for-ink) ⚪|                                    |
| DeFi            | [Pendulum-Ink-Wrapper](https://github.com/pendulum-chain/pendulum-ink-wrapper) ⚪, [Panorama Swap](https://github.com/RottenKiwi/Panorama-Swap-INK-SC) ⚪, [ink_bank](https://github.com/Juminstock/ink_bank) ⚪, [Polkadot AMM](https://github.com/realnimish/polkadot-amm) ⚪, [Vera](https://github.com/veradefi/defi) ⚪, [Everlasting Cash](https://github.com/CycanTech/ELC) ⚪, [Coinversation](https://github.com/Coinversation/coinpro) ⚪, [zenlink-dex-contract](https://github.com/zenlinkpro/zenlink-dex-contract) ⚪, [AlgoCash](https://github.com/ReserveLabs/AlgoCash) ⚪| New seigniorage-style stable coins |
| Gaming          | [Open Emoji Battler](https://github.com/OpenEmojiBattler/open-emoji-battler) ⚪, [NewOmega](https://github.com/WiktorStarczewski/newomega.polkadot/blob/master/newomega_delegator/newomega/newomega.rs) ⚪|                                    |
| DAO             | [subDAO](https://github.com/w3f-grants-archive/subDAO-contracts) ⚪, [RainbowDAO](https://github.com/RainbowcityFoundation/RainbowDAO-Protocol-Ink-milestone_1) ⚪, [MangoBox](https://github.com/Mangoboxlabs/Mangoboxink) ⚪, [MangoSale](https://github.com/Mangoboxlabs/MangoSaleV2) ⚪|                                    |
| Identity/DID | [Dotflow](https://github.com/TheDotflow) 🟢| |
| Oracles | [DIA Wasm Oracle](https://github.com/diadata-org/dia-wasm-oracle) ⚪| |
| Spam Protection | [Prosopo](https://github.com/prosopo/captcha) 🟢|                                    |
| Governance         | [Abax Governance](https://github.com/AbaxFinance/Governance) ⚪|                                    |
| NFT         | [ArtZero](https://github.com/ArtZero-io/Contracts) ⚪|                                    |
| Other           | [Polkadot Smart Account](https://github.com/pnsproject/ink-aa) ⚪, [magink](https://github.com/swankyhub/magink-dapp) ⚪, [ink-test-contracts](https://github.com/AstarNetwork/ink-test-contracts) ⚪, [Candle Auctions](https://github.com/agryaznov/candle-auction-ink) ⚪, [polkasign-contract](https://github.com/SubDAO-Network/polkasign-contract) ⚪, [OCEX](https://github.com/bsn-si/ocex-cli) ⚪, [Roloi](https://github.com/RoloiMoney/roloi-polkadot-w3f-grant) ⚪, [OpenPayroll](https://github.com/polkadrys/openPayroll) ⚪, [BlockchainFoodOrder](https://github.com/InkSmartContract/BlockchainFoodOrder) ⚪|                                    |


### Chains and Pallets

| Components                      | Existing projects                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | Potentially interesting projects                                                                                                                                                       |
| ------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Scalable Transactions           | [Perun channels](https://github.com/perun-network/perun-polkadot-pallet) ⚪, [CLI demo of Perun](https://github.com/perun-network/perun-polkadot-demo) ⚪, [Astar](https://github.com/AstarNetwork/Astar) 🟢, [Celer](https://github.com/celer-network/cChannel-substrate) ⚪, [Gunclear](https://github.com/GunClear/Gunero) ⚪, [TPScore](https://github.com/BCS-Labs/tpscore-etl-system) :grey_question:, [proof-of-contract-stake](https://github.com/auguth/pocs) ⚪| roll-ups, DAG-based consensus mechanisms, side chains                                                                                                                                  |
| Bridges and Interoperability                        | [interBTC](https://github.com/interlay/interbtc) ⚪, [DKG Substrate](https://github.com/webb-tools/dkg-substrate) ⚪, [Sygma](https://github.com/sygmaprotocol/sygma-substrate-pallets) ⚪, [EOS by Bifrost](https://github.com/bifrost-finance/bifrost-eos-relay) ⚪, [POA - Substrate](https://github.com/paritytech/parity-bridge) ⚪, [Substrate - Ethereum DAI Bridge](https://github.com/akropolisio/POC-polkadai-bridge) ⚪, [Substrate - Substrate Bridge](https://github.com/paritytech/substrate-bridge-relay) ⚪, [BTC by ChainX](https://github.com/chainx-org/ChainX) ⚪, [Cosmos-Substrate bridge](https://github.com/ChorusOne/wormhole-bridge) ⚪, [Substrate IBC Pallet](https://github.com/octopus-network/substrate-ibc) ⚪, [Polkadot Ethereum Bridge](https://github.com/Snowfork/polkadot-ethereum) 🟢, [Darwinia](https://github.com/darwinia-network/darwinia) ⚪, [Spacewalk: a Stellar bridge](https://github.com/pendulum-chain/spacewalk) 🟢, [Filecoindot](https://github.com/ChainSafe/filecoindot) ⚪, [Axelar-Substrate](https://github.com/centrifuge/axelar-cgp-substrate/tree/main) ⚪, [Hyperbridge](https://github.com/polytope-labs/hyperbridge) 🟢, [t3rn](https://github.com/t3rn/t3rn) ⚪| ZCash                                                                                                                                                                                  |
| Privacy                         | [ZeroChain](https://github.com/LayerXcom/zero-chain) ⚪, [xx network](https://github.com/xx-labs/xxchain) ⚪, [pLibra (Phala Network)](https://github.com/Phala-Network/phala-blockchain) ⚪, [Automata Network](https://github.com/automata-network/automata) ⚪, [Zero Network](https://github.com/zero-network/zero) ⚪, [Silent Data](https://github.com/appliedblockchain/silentdata-polkadot) ⚪| [Multi-Asset Shielded Pool (MASP)](https://github.com/anoma/masp) , [Zkay](https://arxiv.org/pdf/2009.01020.pdf), [Zexe](https://eprint.iacr.org/2018/962.pdf) |
| ZKP                             | [ZeroPool](https://github.com/zeropoolnetwork/zeropool-substrate-groth16-example) ⚪, [Megaclite](https://github.com/patractlabs/megaclite) ⚪, [zkMega](https://github.com/patractlabs/zkmega) ⚪, [PLONK for Substrate](https://github.com/AstarNetwork/plonk) ⚪, [Webb Anchor Protocol](https://github.com/webb-tools/protocol-substrate) ⚪, [zk-SNARKs tutorial](https://github.com/bright/zk-snarks-with-substrate/) ⚪, [substrate-zk](https://github.com/Zkvers/substrate-zk) ⚪, [hyperfridge-r0](https://github.com/w3f-grants-archive/hyperfridge-r0) ⚪, [Cyborg Network](https://github.com/Cyborg-Network/cyborg-parachain/tree/master) ⚪, [Manta](https://github.com/Manta-Network/Manta) ⚪|
| TEE                             | [Acurast](https://github.com/Acurast/acurast-core) ⚪, [Integritee](https://github.com/integritee-network/worker) ⚪, [substraTEE](https://github.com/scs/substraTEE) ⚪, [WeTEE](https://github.com/wetee-dao/chain) 🟢| [Keysafe Protocol](https://github.com/keysafe-protocol/keysafe-app) ⚪|
| DeFi                            | [PrivaDEX](https://github.com/kapilsinha/privadex) ⚪, [Fusotao](https://github.com/uinb/fusotao) ⚪, [Reef](https://github.com/reef-defi/reef-chain) ⚪, [Diora](https://github.com/Diora-Network/Diora) ⚪, [Pendulum Chain](https://github.com/pendulum-chain/pendulum) 🟢, [Compound Gateway](https://github.com/compound-finance/gateway) ⚪, [Parallel Finance](https://github.com/parallel-finance/parallel) ⚪, [PINT](https://github.com/ChainSafe/PINT) ⚪, [Laminar Chain](https://github.com/laminar-protocol/laminar-chain) ⚪, [Acala](https://github.com/AcalaNetwork/Acala) 🟡, [Centrifuge](https://github.com/centrifuge/centrifuge-chain) ⚪, [Stafi](https://github.com/stafiprotocol/stafi-node) 🟢, [Definex](https://github.com/y2labs-0sh/definex) ⚪, [OAX Foundation](https://github.com/OAXFoundation/parrot) ⚪, [Cybex](https://github.com/alexxuyang/substrate-dex) ⚪, [Zenlink](https://github.com/zenlinkpro/pallet-zenlink) ⚪, [Swaps Pallet](https://github.com/lsaether/pallet-swaps) ⚪, [Polkadex](https://github.com/Polkadex-Substrate/Polkadex/tree/master) ⚪, [SubDEX](https://github.com/subdarkdex/subdex-parachain) ⚪, [Hydration](https://github.com/galacticcouncil/hydration-node) 🟢, [Substrate Stablecoin](https://github.com/apopiak/stablecoin) ⚪, [Standard protocol](https://github.com/digitalnativeinc/standard-substrate) ⚪, [Polkaswap](https://github.com/sora-xor/sora2-network) 🟢, [Curve AMM](https://github.com/equilibrium-eosdt/equilibrium-curve-amm) ⚪, [Konomi Network](https://github.com/konomi-network/cumulus/) ⚪, [Stable Asset](https://github.com/nutsfinance/stable-asset) ⚪, [Libra Payment](https://github.com/atscaletech/libra) ⚪, [Mangata](https://github.com/mangata-finance/mangata-node) ⚪, [Tidechain](https://github.com/tidelabs/tidechain) ⚪, [Basilisk](https://github.com/galacticcouncil/Basilisk-node) 🟡, [Polymesh](https://github.com/PolymeshAssociation/Polymesh) 🟢, [Bifrost](https://github.com/bifrost-io/bifrost) 🟢, [Clover](https://github.com/clover-network/clover) ⚪, [Composable Finance ](https://github.com/ComposableFi/composable) ⚪, [OmniBTC](https://github.com/OmniBTC/PSC) ⚪, [Polimec](https://github.com/Polimec/polimec-node) ⚪, [Swush](https://github.com/swush-labs/swush-app) 🟡| DEX with privacy and confidentiality features such as those found in a [dark pool](https://en.wikipedia.org/wiki/Dark_pool)                                           |
| Smart contract chains           | [moonbeam](https://github.com/PureStake/moonbeam) 🟢, [Magnet](https://github.com/Magport/Magnet) ⚪, [Aleph-node](https://github.com/Cardinal-Cryptography/aleph-node) ⚪, [Edgeware](https://github.com/hicommonwealth/edgeware-node) ⚪, [ParaState](https://github.com/ParaState/substrate-ssvm-node) ⚪, [gear](https://github.com/gear-tech/gear) 🟢, [CENNZnet](https://github.com/cennznet/cennznet) ⚪, [SkyeKiwi](https://github.com/skyekiwi/skyekiwi-network) ⚪, [OAK-blockchain](https://github.com/OAK-Foundation/OAK-blockchain) ⚪, [ICE Blockchain](https://github.com/web3labs/ice-substrate) ⚪, [Polkadot Smart Chain](https://github.com/OmniBTC/PSC) ⚪, [Madara - Cairo/Starknet](https://github.com/keep-starknet-strange/madara) ⚪| smart contract chains with novel security approaches, smart contract chains based on existing toolchains                                                                               |
| Oracle                          | [Tellor](https://github.com/tellor-io/tellor-pallet) ⚪, [Laminar](https://github.com/laminar-protocol/open-runtime-module-library/tree/master/oracle) 🟢, [Chainlink-polkadot](https://github.com/smartcontractkit/chainlink-polkadot) ⚪, [Ares Protocol](https://github.com/aresprotocols/ares) ⚪, [Kylin Network](https://github.com/Kylin-Network/kylin-node) ⚪, [interbtc-clients oracle](https://github.com/interlay/interbtc-clients/tree/master/oracle) ⚪, [Anonima](https://github.com/webb-tools/anonima) ⚪, [SaaS3](https://github.com/SaaS3-Foundation/dRuntime-fat) ⚪, [Tellor](https://github.com/tellor-io/tellor-parachain-contracts) ⚪, [Bridgestate Oracle](https://github.com/diadata-org/bridgestate-ocw) ⚪
| Identity/DID                    | [Parami](https://github.com/parami-foundation/parami-blockchain) ⚪, [Litentry](https://github.com/litentry/litentry-parachain) 🟢, [pallet-did](https://github.com/substrate-developer-hub/pallet-did) ⚪, [dot-id](https://github.com/prasad-kumkar/dot-id) ⚪|
| IoT                             | [Nodle](https://github.com/NodleCode/chain) ⚪, [MXC/DataHighway](https://github.com/DataHighway-DHX/node) ⚪, [peaq-network-node](https://github.com/peaqnetwork/peaq-network-node) ⚪|
| Verifiable Claims               | [KILT](https://github.com/KILTprotocol/kilt-node) ⚪, [Dock](https://github.com/docknetwork/dock-substrate) ⚪|
| Supply chain                    | [DSCP Node](https://github.com/digicatapult/dscp-node) ⚪|                                                                                                                                                                                        |
| Health care                     |  |                                                                                                                                                                                        |
| Music Industry                       | [Allfeat Network](https://github.com/Allfeat/Allfeat) 🟢|
| Data Availability    | [Avail](https://github.com/availproject/avail) 🟡, [Melodot](https://github.com/ZeroDAO/melodot) ⚪|                                                                                                                                                                                        |
| Social Networking               | [Frequency](https://github.com/frequency-chain/frequency) 🟢, [Social Network](https://github.com/social-network/blockchain) ⚪, [SubSocial](https://github.com/dappforce/subsocial-parachain) ⚪, [ZeroDAO](https://github.com/ZeroDAO/ZeroDAO-node) ⚪, [Myriad Node](https://github.com/myriadsocial/myriad-node) ⚪, [Wika Network](https://github.com/randombishop/wika_etl) ⚪, [Listen](https://github.com/listenofficial/listen-parachain) ⚪, [Tribal Protocol](https://github.com/tribal-protocol/tribal_contract) ⚪, [Five Degrees on Substrate](https://github.com/rust-0x0/hex-space-protocol-substrate) ⚪, [Acuity Social](https://github.com/acuity-social/acuity-substrate) ⚪| Private instant messenger that uses on-chain identity                                                                                                                                  |
| Governance/DAO                  | [Aisland Node](https://github.com/aisland-dao/aisland-node/tree/main) ⚪, [Hashed Network](https://github.com/hashed-io/hashed-substrate) ⚪, [Sunshine DAO](https://github.com/sunshine-protocol/sunshine-bounty) :grey_question:, [Governance OS](https://github.com/NucleiStudio/governance-os) ⚪, [Idavoll Network](https://github.com/idavollnetwork/idavoll) ⚪, [Substrate Moloch](https://github.com/DoraFactory/Substrate-Moloch-V2) ⚪, [QRUCIAL-DAO](https://github.com/Qrucial/QRUCIAL-DAO) ⚪, [Societal](https://github.com/sctllabs/societal-node) ⚪, [DAOs](https://github.com/daos-org/daos) ⚪, [Shivarthu](https://github.com/amiyatulu/shivarthu/) ⚪, [Faterium](https://github.com/faterium) 🟢, [Supersig](https://github.com/decentration/apps) ⚪, [GenesisDAO](https://github.com/deep-ink-ventures/genesis-dao-node) ⚪, [Liberland](https://github.com/liberland/liberland_substrate) ⚪| [Consul](https://github.com/consul/consul) - Open Government and E-Participation Web Software                                                                  |
| Prediction Markets and Futarchy | [Zeitgeist](https://github.com/zeitgeistpm/zeitgeist) ⚪, [X Predict Market](https://github.com/XPredictMarket/NodePredict) ⚪|
| Messaging                       | [HOPR](https://github.com/validitylabs/HOPR-PL-Substrate) ⚪, [Nolik](https://github.com/chainify/nolik) ⚪, [Uke](https://github.com/Uke-Messaging/uke-pallet) ⚪, [Diffy Chat](https://github.com/Belsoft-rs/diffychat-pallet) ⚪, [Fennel Protocol](https://github.com/fennelLabs/Fennel-Protocol) ⚪|
| File Storage, Cloud             | [Subsocial-Offchain](https://github.com/dappforce/subsocial-offchain) ⚪, [DatDot](https://github.com/playproject-io/datdot) ⚪, [Crust Network](https://github.com/crustio/crust) ⚪, [offchain::ipfs](https://github.com/rs-ipfs/offchain-ipfs-manual) ⚪, [Canyon Network](https://github.com/canyon-network/canyon) ⚪, [CESS](https://github.com/Cumulus2021/cess) ⚪, [Iris](https://github.com/ideal-lab5/iris) ⚪, [fmd-cess](https://github.com/CESSProject/fmd-cess) ⚪, [IPFS Frame V3](https://github.com/DanHenton/pocket-substrate/tree/ipfs-ocw) ⚪, [Threefold Chain](https://github.com/threefoldtech/tfchain) 🟡, [Apron](https://github.com/Apron-Network/apron-node) ⚪, [IPFS Utilities](https://github.com/TDSoftware/substrate-ipfs) ⚪, [DINFRA](https://gitlab.com/dinfra/dinfra) 🟢, [CESS](https://github.com/CESSProject/cess) ⚪|
| Name Service                    | [Substrate Names](https://github.com/xaya/substrate-names) ⚪, [ENS on Substrate](https://github.com/hskang9/substrate-name-service) ⚪, [PNS-Pallets](https://github.com/pnsproject/pns-pallets) ⚪, [Faceless](https://github.com/HeisenbergLin22/Faceless_milestone2_delivery) ⚪, [Anchor](https://github.com/ff13dfly/Anchor) ⚪|
| Gaming                          | [Bit.country](https://github.com/bit-country/Bit-Country-Blockchain) ⚪, [SubGame](https://github.com/SubGame-Network/subgame-network) ⚪, [subzero](https://github.com/playzero/subzero) ⚪, [Web3Games](https://github.com/web3gamesofficial/web3games-blockchain) ⚪, [Ajuna Pallets](https://github.com/ajuna-network/ajuna-pallets) ⚪, [Gafi Network](https://github.com/cryptoviet/gafi) ⚪, [Asylum](https://gitlab.com/asylum-space/asylum-item-nft) 🟢, [3DPass](https://github.com/3Dpass/3DP) ⚪, [Polket](https://github.com/polketio/toearnfun_flutter_app) ⚪|
| Computation/AI                  | [Deitos Network](https://github.com/Deitos-Network/deitos-ip) ⚪, [DeepBrain Chain](https://github.com/DeepBrainChain/DeepBrainChain-MainChain) ⚪, [AI Infrastructure on Blockchain](https://github.com/anudit/cerebrum) ⚪, [NeuroWeb](https://github.com/OriginTrail/neuroweb) ⚪, [Infimum](https://github.com/w3f/Grant-Milestone-Delivery/blob/master/evaluations/infimum_2_keeganquigley.md) 🟢|
| Enable specific use-cases       | [pallet-hookpoints](https://github.com/deep-ink-ventures/pallet_hookpoints) ⚪, [Robonomics](https://github.com/airalab/substrate-node-robonomics) 🟢, [UniversalDOT](https://github.com/UniversalDot/pallets) ⚪, [Evercity Sustainable Finance Protocol](https://github.com/EvercityEcosystem/evercity-chain) ⚪, [logion](https://github.com/logion-network/logion-node) ⚪, [Me Protocol](https://github.com/Me-Protocol/rusty-protocol-v0.1/) ⚪, [QSTN](https://github.com/QSTN-US/Polkadot-QSTN-v1/) ⚪, [Subcoin](https://github.com/subcoin-project/subcoin) ⚪, [Aventus](https://github.com/AventusProtocolFoundation/avn-parachain) 🟢|
| NFT                             | [ternoa](https://github.com/capsule-corp-ternoa/chain) ⚪, [FRAME Pallet: NFTs for Substrate](https://github.com/danforbes/pallet-nft) ⚪, [Unique NFT Parachain](https://github.com/UniqueNetwork/unique-chain) ⚪, [DNFT](https://github.com/DNFT-Team/dnft-substrate-node/tree/master/pallets) ⚪, [RMRK-Substrate](https://github.com/rmrk-team/rmrk-substrate) ⚪, [NT-NFTs](https://github.com/Popular-Coding/nt-nft) ⚪, [Green Lemon](https://github.com/GreenLemonProtocol/dksap-polkadot) ⚪, [Basilisk](https://github.com/galacticcouncil/Basilisk-node) 🟡, [LAOS](https://github.com/freeverseio/laos) 🟢, [NFTAA](https://github.com/decenzio/nftaa) ⚪|
| Randomness                      | [DKG and Randomness Beacon](https://github.com/Cardinal-Cryptography/substrate/tree/randomness-beacon) ⚪, [drand-substrate-client](https://github.com/random-meat/drand-substrate-client) ⚪|
| Banking Integration             | [FIAT on-off-ramp](https://github.com/element36-io/ebics-java-service) ⚪|
| Crowdfunding                    | [Imbue Network](https://github.com/ImbueNetwork/imbue) ⚪, [Quadratic Funding pallet by Dora](https://github.com/zhangjiannan/QFgrant) ⚪, [Quadratic Funding pallet by OAK](https://github.com/OAK-Foundation/quadratic-funding-pallet/tree/master) ⚪| [Minimum Anti-Collusion Infrastructure (MACI)](https://ethresear.ch/t/minimal-anti-collusion-infrastructure/5413)                                                                      |
| Collection of Pallets           | [Substrate Open Runtime Module Library](https://github.com/open-web3-stack/open-runtime-module-library) 🟢, [warehouse](https://github.com/galacticcouncil/warehouse) ⚪, [InvArch FRAME Pallet Library](https://github.com/InvArch/InvArch-Frames) ⚪|
| Marketplaces                    | [Dot Marketplace](https://github.com/WowLabz/dot-marketplace-v2/tree/Phase3_Milestone3) ⚪, [Gated Marketplace](https://github.com/hashed-io/hashed-substrate/tree/main/pallets/gated-marketplace) ⚪, [Ventur](https://github.com/Popular-Coding/ventur) ⚪|
| Carbon Credits                  | [BitGreen](https://github.com/bitgreen/bitg-node) ⚪, [Carbon Assets Pallet](https://github.com/EvercityEcosystem/carbon-assets) ⚪, [Sequester Pallets](https://github.com/SequesterChain/pallets) ⚪|
| UTXO                            | [Tuxedo](https://github.com/Off-Narrative-Labs/Tuxedo) ⚪|
| Other                           | [Moonkit](https://github.com/Moonsong-Labs/moonkit) 🟡, [Substrate Account Filter](https://github.com/gautamdhameja/substrate-account-filter) ⚪, [Subtensor](https://github.com/opentensor/subtensor) 🟢, [AdMeta](https://github.com/AdMetaNetwork/admeta) ⚪, [Chocolate Node](https://github.com/chocolatenetwork/chocolate-node) ⚪, [Virto Network](https://github.com/virto-network/virto-node) 🟡, [Substrate Validator Set](https://github.com/gautamdhameja/substrate-validator-set) ⚪, [DEIP](https://github.com/DEIPworld/deip-node) ⚪, [DeBio](https://github.com/debionetwork/debio-node) ⚪, [MathChain](https://github.com/mathwallet/MathChain) ⚪, [encointer](https://github.com/encointer/encointer-node) 🟡, [Grassland](https://github.com/grasslandnetwork/substrate_node) ⚪, [Substrate-Tutorials](https://github.com/rusty-crewmates/substrate-tutorials) ⚪, [Fair Squares](https://github.com/Fair-Squares/fair-squares) ⚪, [Totem Live Accounting](https://github.com/totem-tech/totem) ⚪, [Escrow Pallet](https://github.com/herou/EscrowPallet) ⚪, [TREX](https://github.com/NexTokenTech/TREX) ⚪, [Relation Graph](https://github.com/relationlabs/Relation-Graph) ⚪, [Decentralized Invoice](https://github.com/gertt/Invoice) ⚪, [Redstone Network](https://github.com/redstone-network/redstone-node) ⚪, [Access Control Pallet](https://github.com/WunderbarNetwork/access-control) ⚪, [Omniverse DLT](https://github.com/Omniverse-Web3-Labs/omniverse-swap/tree/web3-grant) ⚪, [ISMP](https://github.com/polytope-labs/substrate-ismp) ⚪, [XCMP](https://github.com/w3f/xcmp_prototype_playground) ⚪, [CORD Chain](https://github.com/dhiway/cord) ⚪, [Educhain](https://github.com/w3f/educhain) ⚪| Decentralized review/reputation system                                                                                                                                                 |

### Host

| Components     | Existing projects                                                                                            | Potentially interesting projects |
| -------------- | ------------------------------------------------------------------------------------------------------------ | -------------------------------- |
| Rust           | [Substrate](https://github.com/paritytech/polkadot-sdk/tree/master/substrate) 🟢, [Cumulus](https://github.com/paritytech/polkadot-sdk/tree/master/cumulus) 🟢|
| C++            | [Kagome](https://github.com/soramitsu/kagome) ⚪, [Mayon](https://github.com/Zondax/mayon) ⚪|
| Go             | [Gossamer](https://github.com/ChainSafe/gossamer) ⚪|
| Java             | [Fruzhin](https://github.com/LimeChain/Fruzhin) ⚪, [Java Host Research](https://github.com/LimeChain/java-host-research) ⚪|
| AssemblyScript |
| Light Client   | [smoldot](https://github.com/smol-dot/smoldot) 🟢, [Substrate Connect](https://github.com/paritytech/substrate-connect) ⚪, [C++ Polkadot Light Client](https://github.com/eqlabs/polkadot-light-client) ⚪|
| Testing             | [Polkadot Conformance](https://github.com/LimeChain/polkadot-conformance) ⚪, [Polkafuzz](https://github.com/sigp/polkafuzz) ⚪|

### Network Maintenance Tools

| Components                  | Existing projects                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | Potentially interesting projects |
| --------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------- |
| Secure validator setup      | [Polkadot Validation Node Ansible Setup](https://github.com/polkachu/polkadot-validator) ⚪, [W3F Polkadot Validator Setup](https://github.com/w3f/polkadot-validator-setup) ⚪, [polkadot-ansible](https://github.com/Nexus2k/polkadot-ansible) ⚪|
| High availability setup     | [Archipel](https://github.com/luguslabs/archipel) ⚪, [Polkadot Failover Mechanism](https://github.com/protofire/polkadot-failover-mechanism) ⚪, [Datagen](https://github.com/Datagen-Project/Datagen-Substrate-Grant) ⚪, [High Availability Validator Setup](https://github.com/bright/substrate-raft) ⚪|
| Load Balanced Endpoints     | [terragrunt-polkadot](https://github.com/insight-w3f/terragrunt-polkadot) ⚪, [Geometry Labs' Substrate Meta repo](https://github.com/sudoblockio/substrate-meta) ⚪|
| Deployment Tools            | [Polkadot Package Manager](https://github.com/Blockdaemon/bpm-sdk) ⚪, [PolkaHub](https://github.com/akropolisio/polkahub-monorepo) ⚪, [Avado](https://github.com/AvadoDServer/AVADO-DNP-Polkadot-custom) ⚪, [Polkadot Deployer](https://github.com/w3f/polkadot-deployer) ⚪, [Unified Collator Deployment](https://github.com/for-parity-with-love/unified-collator-node-deployment) ⚪|
| Validator monitoring        | [ONE-T](https://github.com/turboflakes/one-t) 🟢, [SubVT](https://github.com/helikon-labs/subvt-backend) 🟡, [P.A.N.I.C.](https://github.com/SimplyVC/panic) ⚪, [Polkalert](https://github.com/galacticcouncil/polkalert) ⚪, [B-Harvest](https://github.com/nodebreaker0-0/substrate/tree/prometheus_v0.3) ⚪, [nmonpolkadot](https://github.com/stakezone/nmonpolkadot) ⚪, [Polkadot-K8s-Monitor](https://github.com/ironoa/polkadot-k8s-monitor) ⚪, [Polkadot-Watcher](https://github.com/w3f/polkadot-watcher) ⚪, [1KV Telegram Bot](https://github.com/helikon-labs/polkadot-kusama-1kv-telegram-bot) ⚪|
| Validator payout management | [Substrate validator auto payout](https://github.com/Colm3na/substrate-auto-payout) ⚪, [Polkadot Payouts](https://github.com/w3f/polkadot-payouts) ⚪, [staking-payouts CLI](https://github.com/emostov/staking-payouts) ⚪, [Payctl](https://github.com/stakelink/substrate-payctl) ⚪, [crunch](https://github.com/turboflakes/crunch) 🟢|
| Staking Miner | [Staking Miner v2](https://github.com/paritytech/staking-miner-v2) 🟢|
| Nominator Tools | [Validator Selection](https://github.com/miepsik/validators_selection) ⚪, [Polkanalyzer](https://github.com/filippoweb3/polkanalyzer) ⚪, [Polkanalyzer-app](https://github.com/filippoweb3/polkanalyzer-app) ⚪|

### Signatures

| Components                       | Existing projects                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | Potentially interesting projects |
| -------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------- |
| SR25519                          | [rust](https://github.com/w3f/schnorrkel) 🟢(contains partial bindings for C, JavaScript, and Python), [.Net bindings](https://github.com/gautamdhameja/sr25519-dotnet) ⚪, [C](https://github.com/usetech-llc/sr25519) ⚪*(old)*, [C](https://github.com/TerenceGe/sr25519-donna) ⚪*(new)*, [C/C++](https://github.com/soramitsu/soramitsu-sr25519-crust) ⚪, [C#](https://github.com/usetech-llc/sr25519_dotnet) ⚪, [Go](https://github.com/ChainSafe/go-schnorrkel) ⚪, [java](https://github.com/debuggor/schnorrkel-java) ⚪, [PHP](https://github.com/gmajor-encrypt/sr25519-bindings) ⚪|
| Signature Aggregation            | [apk-proofs](https://github.com/w3f/apk-proofs) ⚪|
| Distributed key generation (DKG) or management | [keygen.rs](https://github.com/isislovecruft/frost-dalek) ⚪, [Secure Wallet Origin Distribution (SWORD)](https://github.com/w3f-grants-archive/sword) ⚪|
| Validator HSMs                   | [Zondax Remote Signer](https://github.com/Zondax/buildroot-zondax) ⚪|
| MPC                              | [Orochi Network](https://github.com/orochi-network/orochi-network.github.io) ⚪|

### Consensus

| Components       | Existing projects                                                                                                                                                                                                                                                           | Potentially interesting projects |
| ---------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------- |
| PoC              | [Spartan](https://github.com/subspace/substrate) ⚪|
| PoW              | [PoW consensus for Substrate](https://github.com/paritytech/polkadot-sdk/tree/master/substrate/client/consensus/pow) 🟢, [RandomX](https://github.com/kulupu/kulupu/tree/master/pow) ⚪, [Sha3 PoW](https://github.com/substrate-developer-hub/recipes/tree/master/consensus/sha3pow) ⚪|
| Block production | [BABE](https://github.com/paritytech/polkadot-sdk/tree/master/substrate/client/consensus/babe) 🟢, [Aura](https://github.com/paritytech/polkadot-sdk/tree/master/substrate/client/consensus/aura) 🟢|
| Finality         | [GRANDPA](https://github.com/paritytech/polkadot-sdk/tree/master/substrate/frame/grandpa) 🟢, [AlephBFT](https://github.com/Cardinal-Cryptography/AlephBFT) ⚪|
| Other            | [Nimbus: Upgradeable consensus framework](https://github.com/PureStake/nimbus) ⚪|

### Networking

| Components          | Existing projects                                                                                                     | Potentially interesting projects |
| ------------------- | --------------------------------------------------------------------------------------------------------------------- | -------------------------------- |
| SCALE Codec                     | [Rust](https://github.com/paritytech/parity-scale-codec) 🟢, [TypeScript](https://github.com/paritytech/parity-scale-codec-ts) ⚪, [Python](https://github.com/polkascan/py-scale-codec) ⚪, [Golang Chainsafe](https://github.com/ChainSafe/gossamer/tree/development/pkg/scale/) ⚪, [Golang Itering](https://github.com/itering/scale.go) 🟡, [C](https://github.com/MatthewDarnell/cScale) ⚪, [C++](https://github.com/soramitsu/scale-codec-cpp) ⚪, [JavaScript](https://github.com/polkadot-js/api) 🟢, [AssemblyScript](https://github.com/LimeChain/as-scale-codec) ⚪, [Haskell](https://github.com/airalab/hs-web3/tree/master/packages/scale/src/Codec) 🟡, [Java](https://github.com/emeraldpay/polkaj) ⚪, [Ruby](https://github.com/itering/scale.rb) ⚪, [Dart](https://github.com/nbltrust/dart-scale-codec) ⚪, [Swift](https://github.com/tesseract-one/swift-scale-codec) ⚪, [scale-codec-swift](https://github.com/sublabdev/scale-codec-swift) ⚪, [scale-codec-kotlin](https://github.com/sublabdev/scale-codec-kotlin) ⚪, [PHP](https://github.com/gmajor-encrypt/php-scale-codec) 🟢, [JavaScript by Soramitsu](https://github.com/soramitsu/scale-codec-js-library) ⚪, [Scale Codec Comparator](https://github.com/gmajor-encrypt/scale-codec-comparator) ⚪, [ScaleCodec.sol by Darwinia](https://github.com/darwinia-network/darwinia-messages-sol/blob/master/contracts/utils/contracts/ScaleCodec.sol) ⚪, [Dotscale](https://github.com/arijitAD/dotscale) ⚪|
| Networking Framework | [libp2p](https://github.com/libp2p/libp2p) 🟢[SwarmNL](https://github.com/algorealmInc/SwarmNL) ⚪|                                  |
| DHT Crawler         | [Go](https://github.com/atredispartners/dht-crawler-polkadot) ⚪, [Kotlin](https://github.com/emeraldpay/polkabot) ⚪|                                  |
| RPC Tor-like access | [WhiteNoise](https://github.com/Evanesco-Labs/WhiteNoise.rs) ⚪|                                  |

### Primitives

| Components          | Existing projects                                                                                                     | Potentially interesting projects |
| ------------------- | --------------------------------------------------------------------------------------------------------------------- | -------------------------------- |
| Storage             | [Merkle Tree DB](https://github.com/frisitano/merkle-tree-db) ⚪|                                  |
| Merkle Proofs       | [Solidity Trie Verifier](https://github.com/polytope-labs/solidity-merkle-trees) 🟢| |

## Contributing

Pull requests, issues, or other contributions from the community are encouraged! You can not only
add specific projects, but also potentially interesting fields/areas which are currently missing in
the tech stack.

All technologies listed above need to be open-source. Ideally, the links
lead directly to the code.

_Note: You will need a GitHub account to suggest changes or open issues. If you do not have one, you
may [sign up for free](https://github.com/join)._
