An awesome list is a list of awesome things curated by the Substrate community.

Substrate is a framework for building upgradable, modular and efficient blockchains. Substrate is an open-source library of Rust code that is maintained by Parity Technologies. Source code available on GitHub.

• Resources
• Support
• Social
• Events
• Blogs
• Videos
• Templates
• FRAME Pallets
• Framework Extensions
• Client Libraries
• Mobile
• Tools
• Products and Services
• Alternative Implementations
• SCALE Codec

• DotJobs - A job board for the Substrate and Polkadot ecosystem projects, maintained by Stateless.Money.
• Developer Hub GitHub - Substrate Developer Hub repositories.
• Ecosystem Projects - Projects and teams building with Substrate.
• Polkadot Stack - An awesome list maintained by our friends at Web3 Foundation.
• Official Homepage - Vision, ecosystem, opportunities, and much more.
  • Docs - Developer documentation.
  • Tutorials - Guided exercises to get you started.
  • How-to guides - Workflows outlined to achieve a specific goal.
  • Reference Docs - Versioned API documentation.
• Technical Papers
  • Polkadot Lightpaper
  • Polkadot: Vision for a heterogeneous multi-chain framework
  • Overview of Polkadot and its Design Considerations
    • Chinese Translation (by community)

• Builders Program - White-glove solutions and dedicated support team for visionary teams using Substrate.
• Stack Exchange - The best place for all technical questions.
• Web3 Foundation Grants - Funding for ecosystem development.
• Polkadot Treasury - The Treasury funds are allocated through the voting on spending proposal.

• Substrate Devs Chat (Telegram) - Chat with other Substrate developers, also bridged to matrix.
• Twitter - Follow us to stay up-to-date.

• Sub0 Developer Conference - Semiannual, online and in-person for all things Substrate.
• Substrate Seminar - Bi-weekly collaborative learning sessions.

• DotLeap - Polkadot and Substrate Community blog and newsletter.
• Official - Published by Parity.

• Parity YouTube
  • Substrate Seminar (YouTube Archive)
  • Sub0 Conference Oct. 2020
  • Sub0 Conference Dec. 2019
  • Sub0 Conference Apr. 2019
• Polkadot Network Technical Explainers
• Seminar Crowdcast - Upcoming events and latest recordings.
  • Old Seminar Crowdcast - Archive only.
• Substrate: A Rustic Vision for Polkadot by Gavin Wood at Web3 Summit 2018

• Base - Minimal FRAME-based node, derived from upstream.
• Frontier - Fronter enabled EVM and Ethereum RPC compatible Substrate node, ready for hacking.
• Front-End - Polkadot-JS API and React app to build front-ends for Substrate-based chains.
• Parachain - Cumulus enabled Substrate node, derived from upstream.
• substrate-stencil - A template for a Substrate node that includes staking and governance capabilities.

• Chainlink Feed Pallet - Chainlink feed token interface.
• Official in Substrate - Large collection, Parity maintained.
• Open Runtime Module Library (ORML) - Community maintained collection of Substrate runtime modules.
• Sunshine Bounty - Distributed autonomous organization (DAO) for administering a bounty program.
• Sunshine Identity - Keybase-inspired identity management.
• Sunshine Faucet - Dispense resources for a development chain.
• RMRK Pallets - Nested, conditional & Multi-resourced NFTs.

• Bridges - A collection of tools for cross-chain communication.
• Cumulus - A set of tools for writing Substrate-based Polkadot parachains.
• FRAME - A system for building Substrate runtimes.
• Frontier - End-to-end Ethereum emulation for Substrate chains.
• ink! - Rust smart contract language for Substrate chains.
• IntegriTEE - Trusted off-chain execution framework that uses Intel SGX trusted execution environments.
• Polkadot-JS - Rich JavaScript API framework for front-end development.

• .Net API - Maintained by Usetech.
• .NET Substrate API - Used in nuget, and Unity Example; Maintained by Ajuna Network.
• .NET Toolchain/SDK - Toolchain for Substrate .NET. Pre-generated SubstrateNET; Maintained by Ajuna Network.
• go-substrate-gen - Generate Go (de)serialization/client code from Substrate metadata.
• sube - Lightweight Rust client library and CLI with support for type information.
• subxt - Official Rust client.
• C++ API - Maintained by Usetech.
• Go RPC Client - Maintained by Centrifuge.
• Kotlin Client - Maintained by Nodle.io.
• Polkadot-JS API - Semi-official JavaScript library for Substrate-based chains.
• Python Interface - Maintained by Polkascan Foundation.
• Rust API Client - Rust client maintained by Supercomputing Systems AG.
• Subscan Go Utilities - SS58 and more, developed by Subscan.

• Fearless Utils Android - Android Substrate tools.
• Fearless Utils iOS - iOS Substrate tools.
• Nova Substrate SDK Android - Substrate SDK and tools for Android.
• Nova Substrate SDK iOS - Substrate SDK and tools for iOS.
• Polkadot-Dart - Dart Substrate API.
• PolkaWallet SDK - Flutter SDK for Substrate-based App.
• React-Native-Substrate-Sign - Rust library for React Native.

• offline-election - Tool to predict nominated proof-of-stake elections.
• offchain::ipfs - Substrate infused with IPFS.
• polkadot-js-bundle - A standalone JS bundle that contains Polkadot{JS} libraries.
• polkadot-launch - Simple CLI tool to launch a local Polkadot test network.
• polkadot-runtime-prom-exporter - A Prometheus exporter for Polkadot runtime metrics (modifiable for Substrate use).
• polkadot-scripts - A collection of scripts Parity uses to diagnose Polkadot/Kusama.
• polkadot-starship - Another tool to launch a local Polkadot test network, with emphasis on the ability to run big testnets.
• srtool-actions - GitHub actions to easily use the srtool Docker image to build your own runtime.
• srtool-cli - CLI frontend for the srtool Docker image.
• srtool - Docker image to deterministically build a runtime.
• subsee - CLI to inspect metadata of a Substrate node as JSON.
• subalfred - An all-in-one Substrate development toolbox.
• substrate-balance-calculator - Breakdown the balances of your Substrate account.
• substrate-balance-graph - Create a graph of the token balance over time of a Substrate address.
• substrate-graph-benchmarks - Graph the benchmark output of FRAME pallets.
• substrate-js-utils - A set of useful JavaScript utilities for Substrate that uses the Polkadot{JS} API; Also deployed as a website.
• substrate-society - A basic front-end for the FRAME Society pallet.
• substrate-toml-lint - A toml parser and checker to avoid common errors in Substrate projects.
• subwasm - CLI to inspect a runtime WASM blob offline. It shows information, metadata and can compare runtimes. It can also help you fetch a runtime directly from a node.
• sup - Command line tool for generating or upgrading a Substrate node.
• scale-value - Analogous to serde_json but for SCALE; Library to decode arbitrary SCALE encoded bytes into a dynamic Value given type info from scale-info.
• scale-decode - Decode SCALE bytes into arbitrary custom types by implementing a visitor trait.
• Aleph.im - Scalable, decentralized database, file storage, and computation services for Substrate chains and more.
• Archive - Indexing engine for Substrate chains.
• Dev Hub Utils - Unofficial utilities for working with official Substrate Developer Hub resources.
• Europa - A sandbox for the Substrate runtime execution environment.
• Fork Off Substrate - Script to help bootstrap a new chain with the state of a running chain.
• fudge - Core lib for accessing and (arbitrarily) manipulating substrate databases, including the building and importing of local blocks.
• Gantree Library - A suite of technologies for managing Substrate-powered parachain networks via rapid spin-up & tear-down.
• Halva - A toolchain for improving the experience of developing on Substrate.
• Hydra - A GraphQL framework for Substrate nodes.
• Jupiter - Testnet for smart contracts written for the FRAME Contracts pallet and ink!.
• Megaclite - Zero-knowledge tools for the Polkadot ecosystem.
• Metadata Portal - A self-hosted webpage that shows the latest metadata and chain specs for any given network.
• Nova Polkadot Utils - Contains static info & metadata to support client apps in Polkadot ecosystem to map it to various netowrks.
• Parity Signer - Upcycle an unused mobile phone into an air-gapped hardware wallet.
• Polkadot PANIC - Monitoring and alerting solution for Polkadot nodes by Simply VC, compatible with many Substrate chains.
• Polkadot Tool Index - List of tools available for your development with Polkadot and any Substrate chain including Block Explorers, Wallets, Network Monitoring & Reporting, Clients, Benchmarking, Fuzzing, Forking, SCALE Codec, CLI Tools and much more.
• Polkadot-JS Apps UI - Semi-official block explorer & front-end for Substrate-based chains.
• Polkadot-JS Extension - Browser extension for interacting with Substrate-based chains.
• Polkascan - Multi-chain block explorer maintained by Polkascan Foundation.
• Proxy Hot Wallet Demo - A demonstration of a secure, convenient, and flexible hot wallet architecture built on Substrate primitives.
• Redspot - A Truffle-like toolkit for smart contracts for the FRAME Contracts pallet and ink!.
• Sidecar - REST service that runs alongside Substrate nodes.
• SS58 Transform - Display key's addressees with all SS58 prefixes.
• Staking Rewards Collector - A script to parse and output staking rewards for a given Kusama or Polkadot address and cross-reference them with daily price data.
• Subkey - Command line utility for working with cryptographic keys.
• SubQuery - A GraphQL indexer and query service that allows users to easily create indexed data sources and host them online for free.
  • Nova SubQuery API - A SubQuery API implementation for operation history and staking analytics.
• Subscan - Multi-network explorer for Substrate-based chains.
• Subsquid - An indexing framework (SDK + infrastructure) to quickly and easily turn Substrate and EVM on-chain data into APIs and host them.
• Substate - 100% no-std/wasm compatible Substrate storage key generator library for Rust.
• Substrate debug-kit - A collection of tools and libraries for debugging Substrate-based chains.
• Substrate Docker Builders - A set of Dockerfiles and GitHub Actions to auto-build and push a Docker image for Substrate-based chains.
• Substrate Faucet Bot - Python-based faucet for development purposes.
• Substrate Graph - GraphQL indexer for Substrate-based chains.
• Typechain-Polkadot - Hepls users to generate typescript types from contract ABIs (ink!) and generate runtime code to interact with contracts and deploy them.
• TxWrapper - Helpful library for offline transaction creation.
• VSCode Substrate - Plugin for Visual Studio Code.
• Polkaholic.io - Multi-chain block explorer with API and DeFi support across 40+ parachains.

• OnFinality - Free and paid services to shared Substrate based nodes.

• Gossamer - A Polkadot client implemented in Go; from ChainSafe.
• Kagome - A C++17 implementation of the Polkadot client; from Soramitsu.
• LimeChain AssemblyScript Runtime - An account-based Substrate proof-of-concept runtime written in AssemblyScript; from LimeChain.

• AssemblyScript - Maintained by LimeChain.
• C - Maintained by Matthew Darnell.
• C++ - Maintained by Soramitsu.
• Codec Definition - Official codec documentation.
• Go - Maintained by Itering.
• Haskell - Maintained by Robonomics Network.
• Java - Maintained by Emerald.
• Parity SCALE Codec - Reference implementation written in Rust.
• Python - Maintained by Polkascan Foundation.
• Ruby - Maintained by Itering.
• Scales - Serializing SCALE using type information from a type registry.
• JavaScript / TypeScript implementations:
  • paritytech/parity-scale-codec-ts - Maintained by Parity Technologies.
  • polkadot-js/api - Maintained by Polkadot-JS.
  • scale-ts - Maintained by Josep M Sobrepere.
  • soramitsu/scale-codec-js-library - Maintained by Soramitsu.