OpenZeppelin

OpenZeppelin Contracts is a library for secure smart contract development.

Web3/Solidity based wargame

Upgradeable variant of OpenZeppelin Contracts, meant for use in upgradeable contracts.

OpenZeppelin Contracts written in Cairo for Starknet, a decentralized ZK Rollup

Blockchain educational resources curated by the OpenZeppelin team

Plugins for Hardhat and Foundry to deploy and manage upgradeable contracts on Ethereum.

A JavaScript library to generate merkle trees and merkle proofs.

Documentation generator for Solidity projects

OpenZeppelin SDK repository for CLI and upgrades.js. No longer actively developed.

Code and slides for OpenZeppelin Workshops

Assertion library for Ethereum smart contract testing

A space for the community to interact and exchange ideas on the OpenZeppelin platform. Do not use in production!

CLI tool to develop StarkNet projects written in Cairo

Interactive smart contract generator based on OpenZeppelin Contracts.

Foundry library for deploying and managing upgradeable contracts

Agent skills for secure smart contract development with OpenZeppelin Contracts libraries

Exploiting a Uniswap exchange that uses an ERC777 token by leveraging the reentrant microtrading attack vector

Solidity library of encrypted contracts using Zama's FHEVM

OpenZeppelin Relayer

A blockchain monitoring service that watches for specific on-chain activities and triggers notifications based on configurable conditions.

A library for secure smart contract development written in Rust

Subgraph schema and templates to index the activity of OpenZeppelin Contracts.

Experiments with Solidity JWT. Do not use in production.

Solidity library for secure and modular Uniswap hooks.

An OpenZeppelin starter kit containing React, OpenZeppelin SDK & OpenZeppelin Contracts.

TypeScript types and a JSON Schema for the Solidity AST

Runtime Templates for Polkadot Parachains

OpenZeppelin Contracts written in Rust for Stellar Soroban

UI for TokenVesting contract from OpenZeppelin. No longer maintained

Solidity library of smart contracts from the OpenZeppelin Community

[Not actively maintained] One-line setup for blazing-fast smart contracts tests

Automatically expose internal Solidity functions for smart contract testing.

Empty sample starter truffle project for using zeppelin-solidity for a crowdsale

Monorepo for all defender-client npm packages

OpenZeppelin Contracts written in Compact for Midnight

CLI tool to develop Starknet projects written in Cairo

UI Builder is an open-source blockchain development tool that helps developers and non-developers create user-friendly interfaces for smart contract interaction by providing a chain-agnostic form...

Example snippets for Defender Autotasks