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@OpenZeppelin

OpenZeppelin

The standard for secure blockchain applications

Welcome to the OpenZeppelin GitHub 👋

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Explore Popular Repositories


OpenZeppelin Tools

  • Relayer: Infrastructure for relaying transactions on EVM and Non-EVM networks.
  • Monitor: Infrastructure tool for monitoring blockchain events and transactions.
  • UI Builder: Open source tool for creating UI forms for contracts.

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

  • Telegram: Join our community of developers and 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!

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  1. openzeppelin-contracts openzeppelin-contracts Public

    OpenZeppelin Contracts is a library for secure smart contract development.

    Solidity 26.7k 12.3k

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

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

    JavaScript 1.1k 491

  3. openzeppelin-upgrades openzeppelin-upgrades Public

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

    TypeScript 650 286

  4. ethernaut ethernaut Public

    Web3/Solidity based wargame

    Solidity 2.2k 768

  5. cairo-contracts cairo-contracts Public

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

    Rust 896 394

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

    A library for secure smart contract development written in Rust

    Rust 140 73

Repositories

Showing 10 of 164 repositories
  • OpenZeppelin/ethernaut-leaderboard’s past year of commit activity
    JavaScript 14 MIT 47 2 4 Updated Nov 14, 2025
  • private-state-manager Public

    Cloud backup and syncronization layer for Miden private accounts

    OpenZeppelin/private-state-manager’s past year of commit activity
    Rust 1 AGPL-3.0 1 8 0 Updated Nov 14, 2025
  • OpenZeppelin/openzeppelin-transpiler’s past year of commit activity
    TypeScript 23 MIT 16 9 8 Updated Nov 14, 2025
  • openzeppelin-contracts Public

    OpenZeppelin Contracts is a library for secure smart contract development.

    OpenZeppelin/openzeppelin-contracts’s past year of commit activity
    Solidity 26,727 MIT 12,297 242 (1 issue needs help) 76 Updated Nov 14, 2025
  • cairo-contracts Public

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

    OpenZeppelin/cairo-contracts’s past year of commit activity
    Rust 896 MIT 394 43 (1 issue needs help) 7 Updated Nov 14, 2025
  • stellar-contracts Public

    OpenZeppelin Contracts written in Rust for Stellar Soroban

    OpenZeppelin/stellar-contracts’s past year of commit activity
    Rust 67 MIT 39 22 (1 issue needs help) 8 Updated Nov 14, 2025
  • docs Public

    The new OpenZeppelin Documentation

    OpenZeppelin/docs’s past year of commit activity
    MDX 5 6 2 0 Updated Nov 14, 2025
  • openzeppelin-confidential-contracts Public

    Solidity library of encrypted contracts using Zama's FHEVM

    OpenZeppelin/openzeppelin-confidential-contracts’s past year of commit activity
    Solidity 122 MIT 28 31 7 Updated Nov 14, 2025
  • Event-Scanner Public

    A lightweight highly performant event scanner built in rust

    OpenZeppelin/Event-Scanner’s past year of commit activity
    Rust 7 MIT 2 22 1 Updated Nov 15, 2025
  • ethernaut Public

    Web3/Solidity based wargame

    OpenZeppelin/ethernaut’s past year of commit activity
    Solidity 2,246 AGPL-3.0 768 26 28 Updated Nov 14, 2025