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.

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 Developers Chat (Telegram)

Chat with other Substrate developers, also bridged to matrix.

Twitter

Follow us to stay up-to-date.

Polkaverse

A decentralized news-feed style social platform for the Polkadot community to discuss, share knowledge, post ecosystem updates and interact with posts. Built on top of Subsocial.

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 Nov. 2022

Sub0 Conference Oct. 2020

Sub0 Conference Dec. 2019

Sub0 Conference Apr. 2019

Polkadot Network Technical Explainers

Substrate Seminar Twitch

Biweekly stream hosted by Polkadot Developers Twitch.

Old Seminar Crowdcast

Seminar archive.

Older Seminar Crowdcast

Older still Seminar archive.

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.

polkadot-js-api-ts-template

A template project to kickstart hacking on top of @polkadot/api.

INK!athon

Full-stack dApp boilerplate with ink! smart contracts and a React frontend using the useInkathon (listed below) hooks library maintained by Scio Labs.

Subsocial Starter Kit

A starter-kit for building web3 social apps for the Polkadot ecosystem, powered by the Subsocial blockchain.

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.

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

Fronter enabled EVM and Ethereum RPC compatible Substrate node, ready for hacking.

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 Supercomputers Systems AG.

Subscan Go Utilities

SS58 and more, developed by Subscan.

Sub-Api

Friendly wrapper for Polkadot.js API maintained by KodaDot.

useInkathon

Typesafe React Hooks library abstracting functionality by polkadot.js for working with Substrate-based networks and ink! smart contracts maintained by Scio Labs.

Subsocial JS SDK

A JS SDK for developers to build web3 social apps on top of Subsocial.

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.

Sub-Api

Friendly wrapper for Polkadot.js API maintained by KodaDot.

Nova Polkadot Utils

Contains static info & metadata to support client apps in Polkadot ecosystem to map it to various netowrks.

Polkadot Vault

(formerly 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 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.

SubID

An advanced cross-chain portfolio management tool for the Polkadot ecosystem, allowing any user to see their balances across chains; view their crowdloan history; view their NFTs across Polkadot ecosystem chains; claim their vested tokens and perform cross-chain transfers.

Subsocial SDK Playground

Subsocial JS SDK Playground allows you to fetch spaces, send transactions on blockchain and test the SDK code snippets on the go without the need to download or setup anything locally.

Uptest Runtime upgrade tool

Uptest command line client and libuptest Rust library are two tools used for debugging storage changes and runtime upgrades.

OnFinality

Free and paid services to shared Substrate based nodes.

PrivHost

Public Tor .onion supported nodes for Polkadot, Kusama and Edgeware.

Substrate Devops Guide

Parity devops team's configuration and guidance on deploying, monitoring, and maintaining node infrastructure.

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.

Polkadot-JS API

Semi-official JavaScript library for Substrate-based chains.

scale-ts

Maintained by Josep M Sobrepere.

soramitsu/scale-codec-js-library

Maintained by Soramitsu.