OpenZeppelin Contracts is a library for secure smart contract development.
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Solidity contracts implementing hash based post quantum signatures
Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software.
An EVM compatible Substrate chain, powered by StorageHub and secured by EigenLayer
- blockchain
- decentralized
- eigenlayer
- eigenlayer-avs
🦄 Open source interfaces for the Uniswap protocol
- uniswap
- ethereum
- blockchain
🌈‒ the Ethereum wallet that lives in your pocket
- react-native
- ethereum
- rainbow
- defi
Mythril is a symbolic-execution-based securty analysis tool for EVM bytecode. It detects security vulnerabilities in smart contracts built for Ethereum and other EVM-compatible blockchains.
- security-analysis
- ethereum
- blockchain
- smart-contracts
🦄 🦄 Core smart contracts of Uniswap V2
- ethereum
- smart-contracts
- erc20
- decentralized-exchange
Taho, the community owned and operated Web3 wallet.
Fully decentralized and the most secure XRP & EVM wallet - built by the community, for the community.
A fast, secure, and portable multichain light client for Ethereum
Safe allows secure management of blockchain assets.
Open source forkable Ethereum dev stack
Grow Open Source
- gitcoin
- bounties
- ethereum
- opensource
🚀 Try the Learn EVM Explorer we just launched!!!
An open protocol that lets users connect their mobile wallets to your DApp
- coinbase
- ethereum
- ethereum-wallet
Heimdall is an advanced EVM smart contract toolkit specializing in bytecode analysis and extracting information from unverified contracts.
Core protocol repository for Ridera — Mobility RWA on Base. Includes docs, architecture, smart contracts, and protocol design.
MyEtherWallet (our friends call us MEW) is a free, client-side interface helping you interact with the Ethereum blockchain.
- myetherwallet
- mew
- ethereum
- interface
Bitcart is a free and open-source self-hosted payment processor for BTC, LTC, BCH, XMR, ETH, TRX, USDT and more
- python
- docker
- docker-compose
- bitcoin
Source code verification service for Ethereum smart contracts
- verification
- ethereum
- smart-contracts
- solidity
A pure swift Ethereum Web3 library
Professional BIP-39 Seed & HD Wallet Toolkit with 12–24 word mnemonics, checksum validation, BIP-44/49/84 derivation, and multi-chain support (BTC, ETH, SOL, LTC, DOGE, ADA, DOT, AVAX, ATOM, XRP, TRX). Features offline CSPRNG, PBKDF2-HMAC-SHA512, AES-256-GCM encryption, wallet recovery, CSV/JSON export, and custom derivation paths.
- bitcoin-private-key-finder
- bitcoin-private-key-search
- bitcoin-private-key-tool
- bitcoin-wallet-phrase-generator
Open-source wallet address portrait tool — CLI + demo that profiles on-chain activity, protocol touches, and risk tags