Blockchain

A blockchain is a digitized, decentralized ledger of transactions. Blockchains record a continuously growing list of records, called blocks, which are linked and secured using cryptography.

GitHub: https://github.com/topics/blockchain
Wikipedia: https://en.wikipedia.org/wiki/Blockchain
Released: 2008
Related Topics: cryptocurrency, cryptography, bitcoin, ethereum,
Last updated: 2026-06-19 00:04:12 UTC
JSON Representation

https://github.com/studydefi/money-legos

💰One stop shop for Ethereum ABIs, addresses, and Solidity interfaces!

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https://github.com/hyperledger-archives/burrow

https://wiki.hyperledger.org/display/burrow

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https://github.com/0xpolygon/polygon-edge

A Framework for Building Ethereum-compatible Blockchain Networks

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https://github.com/0xPolygon/polygon-edge

A Framework for Building Ethereum-compatible Blockchain Networks

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https://github.com/cosmos/ibc

Interchain Standards (ICS) for the Cosmos network & interchain ecosystem.

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https://github.com/aptos-labs/developer-docs

Source for the Aptos developer docs

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https://github.com/polkadot-js/extension

Simple browser extension for managing Polkadot and Substrate network accounts in a browser. Allows the signing of extrinsics using these accounts. Also provides a simple interface for compliant extensions for dapps.

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https://github.com/hyperledger-iroha/iroha-dco

Iroha - A simple, decentralized ledger

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https://github.com/iron-fish/ironfish

A novel cryptocurrency focused on privacy and accessibility.

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https://github.com/bnb-chain/tss-lib

Threshold Signature Scheme, for ECDSA and EDDSA

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https://github.com/keppel/lotion

✨ Smooth, easy blockchain apps ✨

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https://succinctlabs.github.io/sp1/

A performant, 100% open-source, contributor-friendly zkVM.

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https://github.com/chainsafe/web3.unity

🕹 Unity SDK for building games that interact with blockchains.

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https://github.com/ZenGo-X/multi-party-ecdsa

Rust implementation of {t,n}-threshold ECDSA (elliptic curve digital signature algorithm).

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https://github.com/ChainSafe/web3.unity

🕹 Unity SDK for building games that interact with blockchains.

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https://github.com/multiversx/mx-chain-go

⚡ The official implementation of the MultiversX blockchain protocol, written in golang.

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https://github.com/0xs34n/blockchain

📖Code for Blockchain Demo

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https://github.com/moonbeam-foundation/moonbeam

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https://github.com/minaminao/ctf-blockchain

A summary of 200+ CTF blockchain challenges

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https://github.com/aave/aave-v3-core

This repository contains the core smart contracts of the Aave V3 protocol.

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https://github.com/ipsilon/evmone

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https://github.com/aitos-io/BoAT-X-Framework

BoAT-X Blockchain Application Framework for IoT

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https://github.com/hyperledger/fabric-sdk-go

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https://github.com/spo0ds/Journey-to-become-a-Blockchain-Engineer

I'm sharing everything I'm learning to become a Blockchain Engineer

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https://github.com/opentensor/BitTensor

Internet-scale Neural Networks

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https://github.com/hyperledger-cello/cello

Operating System for Enterprise Blockchain

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https://github.com/pubkey/eth-crypto

Cryptographic javascript-functions for ethereum and tutorials to use them with web3js and solidity

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https://github.com/autistic-symposium/mev-toolkit

👾 catalog of resources on blockchain's maximal extractable value: on the hope of non-predatory free markets in the metaweb

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A highly-configurable, distributed, realtime database that manages a state tree shared among many peers.

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a blockchain private key management library on iOS

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Holographic storage for distributed applications -- a validating monotonic DHT "backed" by authoritative hashchains for data provenance (a Ceptr sub-project)

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https://github.com/cometbft/cometbft

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https://github.com/unlock-protocol/unlock

Ʉnlock is a protocol for memberships built on a blockchain.

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https://github.com/consenlabs/token-profile

Blockchain coin and token profile collection

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https://github.com/filenation/filenation

The simplest way to send your files around the world using IPFS. ✏️ 🗃

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https://github.com/FileNation/FileNation

The simplest way to send your files around the world using IPFS. ✏️ 🗃

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https://github.com/alloy-rs/alloy

Transports, Middleware, and Networks for the Alloy project

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https://github.com/alloy-rs/core

High-performance, well-tested & documented core libraries for Ethereum, in Rust

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https://github.com/satwikkansal/python_blockchain_app

A fully functional blockchain application implemented in Python from scratch (with tutorial).

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https://github.com/rampatra/algorithms-and-data-structures-in-java

Algorithms and Data Structures in Java

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https://github.com/trustwallet/trust-web3-provider

Web3 javascript wrapper provider for iOS and Android platforms.

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https://github.com/aragon/client

(Aragon 1) Create and manage decentralized organizations on Ethereum.

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https://github.com/ontio/ontology

Official Go implementation of the Ontology protocol. https://dev-docs.ont.io/#/

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https://github.com/chainapsis/keplr-wallet

The most powerful wallet infrastructure for the multi-chain world

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https://github.com/EverexIO/Ethplorer

Viewer of Ethereum tokens and transactions based on ERC20 standard.

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https://github.com/dtube/dtube

:tv: d.tube app. A full-featured video sharing website, decentralized.

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https://github.com/dabit3/full-stack-ethereum

Building full stack apps with Solidity, Ethers.js, Hardhat, and The Graph

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https://github.com/chainapsis/keplr-extension

The most powerful wallet for the Cosmos ecosystem and the Interchain

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https://github.com/enkidevs/curriculum

👩‍🏫 👨‍🏫 The open-source curriculum of Enki!

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https://github.com/Ebookcoin/ebookcoin

Ebookcoin has been updated to DDN Blockchain，please get it from https://github.com/ddnlink/ddn

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https://github.com/vechain/thor

A general purpose blockchain highly compatible with Ethereum's ecosystem

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https://github.com/hyperledger/fabric-sdk-node

Hyperledger Fabric SDK for Node https://wiki.hyperledger.org/display/fabric

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https://github.com/akula-bft/akula

Fastest Ethereum archive node ever built

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https://github.com/stratisproject/stratisbitcoinfullnode

Bitcoin full node in C#

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Bitcoin full node in C#

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https://github.com/togettoyou/fabric-realty

🤹 基于区块链（Hyperledger Fabric 联盟链）的房地产交易系统，全网最新、最易上手、最适合入门的实战项目，完整实现多组织架构、智能合约、身份认证与交易上链，部署简单，仅依赖 Docker，一条命令即可启动！

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https://github.com/duneanalytics/evm.codes

Source for evm.codes an Ethereum Virtual Machine Opcodes Interactive Reference

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https://github.com/spacemeshos/go-spacemesh

Go Implementation of the Spacemesh protocol full node. 💾⏰💪

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https://github.com/astarnetwork/astar

The dApp hub for blockchains of the future

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https://github.com/AstarNetwork/Astar

The dApp hub for blockchains of the future

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Last synced: 18 Apr 2025

https://github.com/decred/dcrd

Decred daemon in Go (golang).

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https://github.com/IBM/build-blockchain-insurance-app

Sample insurance application using Hyperledger Fabric

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https://github.com/VeloraDEX/sdk

Velora allows dApps and traders to get the best DEX liquidity by aggregating multiple markets and offering the best rates

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Last synced: 19 Jun 2025

https://github.com/DigitalRuby/ExchangeSharp

ExchangeSharp is a powerful, fast and easy to use .NET/C# API for interfacing with many crypto currency exchanges. REST and web sockets are supported.

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https://github.com/firoorg/firo

The privacy-focused cryptocurrency

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https://github.com/solana-playground/solana-playground

Quickly develop, deploy and test Solana programs from browsers

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https://github.com/adrianhajdin/project_crowdfunding

With a stunning design, connected to the blockchain, metamask pairing, interaction with smart contracts, sending Ethereum through the blockchain network, and writing solidity code.

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https://github.com/metamask/metamask-docs

Developer documentation for MetaMask

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https://github.com/status-im/status-go

The Status module that consumes go-ethereum

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https://github.com/0xNazgul/Blockchain-Security-Audit-List

A list of Blockchain Security audit companies, solo auditors and location of public audits.

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https://github.com/33cn/chain33

高度模块化, 遵循 KISS原则的区块链开发框架

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Last synced: 09 Feb 2026

https://github.com/paraswap/paraswap-sdk

ParaSwap allows dApps and traders to get the best DEX liquidity by aggregating multiple markets and offering the best rates

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Last synced: 10 Apr 2025

https://github.com/digitalruby/exchangesharp

ExchangeSharp is a powerful, fast and easy to use .NET/C# API for interfacing with many crypto currency exchanges. REST and web sockets are supported.

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https://github.com/hypercube-lab/hypercube

HyperCube is a revolutionary, high-performance decentralized computing platform. HyperCube has powerful computing capabilities to provide high-performance computing power and large-scale data storage support for VR, AR, Metaverse, Artificial Intelligence, Big Data, and Financial Applications.🛰

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https://github.com/paritytech/parity-bitcoin

The Parity Bitcoin client

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Last synced: 16 May 2025

https://github.com/celo-org/celo-monorepo

Official repository for core projects comprising the Celo platform

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https://metamask.github.io/metamask-docs/

Developer documentation for MetaMask

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Last synced: 11 Apr 2025

https://github.com/argentlabs/web3.swift

Ethereum Swift API with support for smart contracts, ENS & ERC20

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https://github.com/district0x/ethlance

Ethlance is the first job market platform built entirely on the Ethereum blockchain. Free to use forever!

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https://github.com/BeamMW/beam

Beam: Scalable Confidential Cryptocurrency. Leading the way to Confidential DeFi

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https://github.com/dragonchain/dragonchain

Dragonchain blockchain platform - simplified integration of advanced blockchain features

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https://github.com/xssnick/tonutils-go

TON SDK Library in pure Golang for interacting with The Open Network ecosystem using native protocols, such as ADNL, RLDP and etc.

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https://github.com/inoutcode/bitcoin_book_2nd

Mastering Bitcoin 2nd Edition 精通比特币（第二版）-- 区块链编程

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https://github.com/the-web3/cryptography

Cryptography that everyone can understand

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Ethereum on Tendermint using Cosmos-SDK!

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Main Stellar client library for the JavaScript language.

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https://github.com/hyperledger-caliper/caliper

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https://github.com/mudler/edgevpn

:sailboat: The immutable, decentralized, statically built p2p VPN without any central server and automatic discovery! Create decentralized introspectable tunnels over p2p with shared tokens

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