Skip to content
@OpenZeppelin

OpenZeppelin

The standard for secure blockchain applications

Welcome to the OpenZeppelin GitHub 👋

OpenZeppelin-Banner-DarkLogo


Explore Popular Repositories


Getting Started & Resources

  1. Documentation: learn how to integrate our libraries and tools into your project.
  2. Forum: ask questions, share insights, and get help from our community.
  3. Security Center: all the security details you need to know about OpenZeppelin Contracts
  4. Dune Dashboard: real-time metrics and usage data for OpenZeppelin Contracts across various chains.

Stay Connected

  • X: Follow us for the latest announcements and updates.
  • Blog: Dive deeper into our latest articles, security best practices, and community updates.
  • Careers: Want to buld and secure open-source tools and protocols that protect the open economy? We’re hiring!

Pinned Loading

  1. openzeppelin-contracts openzeppelin-contracts Public

    OpenZeppelin Contracts is a library for secure smart contract development.

    Solidity 25.4k 12k

  2. openzeppelin-contracts-upgradeable openzeppelin-contracts-upgradeable Public

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

    JavaScript 1k 452

  3. openzeppelin-upgrades openzeppelin-upgrades Public

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

    TypeScript 637 275

  4. ethernaut ethernaut Public

    Web3/Solidity based wargame

    Solidity 2.1k 705

  5. cairo-contracts cairo-contracts Public

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

    Rust 848 369

  6. rust-contracts-stylus rust-contracts-stylus Public

    A library for secure smart contract development written in Rust

    Rust 105 41

Repositories

Showing 10 of 134 repositories
  • OpenZeppelin/ethernaut-leaderboard’s past year of commit activity
    JavaScript 15 MIT 44 1 4 Updated Feb 22, 2025
  • minimal-rollup Public

    POC for an implementation of a based rollup protocol with minimal on-chain footprint

    OpenZeppelin/minimal-rollup’s past year of commit activity
    Solidity 9 0 2 12 Updated Feb 22, 2025
  • contracts-wizard Public

    Interactive smart contract generator based on OpenZeppelin Contracts.

    OpenZeppelin/contracts-wizard’s past year of commit activity
    TypeScript 250 AGPL-3.0 145 19 (6 issues need help) 13 Updated Feb 22, 2025
  • defender-sdk Public

    Defender SDK

    OpenZeppelin/defender-sdk’s past year of commit activity
    TypeScript 22 MIT 16 4 47 Updated Feb 21, 2025
  • openzeppelin-community-contracts Public

    Solidity library of smart contracts from the OpenZeppelin Community

    OpenZeppelin/openzeppelin-community-contracts’s past year of commit activity
    Solidity 42 MIT 10 5 18 Updated Feb 21, 2025
  • openzeppelin-contracts-upgradeable Public

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

    OpenZeppelin/openzeppelin-contracts-upgradeable’s past year of commit activity
    JavaScript 1,031 MIT 452 4 6 Updated Feb 21, 2025
  • openzeppelin-contracts Public

    OpenZeppelin Contracts is a library for secure smart contract development.

    OpenZeppelin/openzeppelin-contracts’s past year of commit activity
    Solidity 25,447 MIT 11,970 216 (2 issues need help) 65 Updated Feb 21, 2025
  • openzeppelin-upgrades Public

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

    OpenZeppelin/openzeppelin-upgrades’s past year of commit activity
    TypeScript 637 MIT 275 87 (6 issues need help) 12 Updated Feb 21, 2025
  • openzeppelin-foundry-upgrades Public

    Foundry library for deploying and managing upgradeable contracts

    OpenZeppelin/openzeppelin-foundry-upgrades’s past year of commit activity
    Solidity 204 MIT 32 6 1 Updated Feb 21, 2025
  • uniswap-hooks Public

    Solidity library for secure and modular Uniswap hooks.

    OpenZeppelin/uniswap-hooks’s past year of commit activity
    Solidity 42 MIT 10 10 2 Updated Feb 21, 2025