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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 26.9k 12.4k

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

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

    JavaScript 1.1k 504

  3. openzeppelin-upgrades openzeppelin-upgrades Public

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

    TypeScript 648 287

  4. ethernaut ethernaut Public

    Web3/Solidity based wargame

    Solidity 2.3k 779

  5. cairo-contracts cairo-contracts Public

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

    Rust 904 397

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

    A library for secure smart contract development written in Rust

    Rust 145 77

Repositories

Showing 10 of 170 repositories
  • openzeppelin-ui Public

    OpenZeppelin UI - React components and utilities for blockchain applications

    OpenZeppelin/openzeppelin-ui’s past year of commit activity
    TypeScript 3 AGPL-3.0 0 0 2 Updated Jan 14, 2026
  • OpenZeppelin/ethernaut-leaderboard’s past year of commit activity
    JavaScript 14 MIT 47 2 4 Updated Jan 14, 2026
  • openzeppelin-monitor Public

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

    OpenZeppelin/openzeppelin-monitor’s past year of commit activity
    Rust 117 AGPL-3.0 42 12 12 Updated Jan 14, 2026
  • openzeppelin-relayer Public

    OpenZeppelin Relayer

    OpenZeppelin/openzeppelin-relayer’s past year of commit activity
    Rust 113 AGPL-3.0 47 11 (2 issues need help) 21 Updated Jan 14, 2026
  • openzeppelin-confidential-contracts Public

    Solidity library of encrypted contracts using Zama's FHEVM

    OpenZeppelin/openzeppelin-confidential-contracts’s past year of commit activity
    Solidity 136 MIT 36 32 9 Updated Jan 14, 2026
  • cairo-contracts Public

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

    OpenZeppelin/cairo-contracts’s past year of commit activity
    Rust 904 MIT 397 40 (1 issue needs help) 9 Updated Jan 14, 2026
  • Event-Scanner Public

    A lightweight highly performant event scanner built in rust

    OpenZeppelin/Event-Scanner’s past year of commit activity
    Rust 15 MIT 4 26 9 Updated Jan 14, 2026
  • role-manager Public

    Manage OpenZeppelin Access Control contracts across multiple blockchains — visualize roles, permissions, and execute admin actions.

    OpenZeppelin/role-manager’s past year of commit activity
    TypeScript 0 AGPL-3.0 0 0 8 Updated Jan 14, 2026
  • OpenZeppelin/relayer-plugin-channels’s past year of commit activity
    TypeScript 2 AGPL-3.0 0 2 13 Updated Jan 14, 2026
  • stellar-contracts Public

    OpenZeppelin Contracts written in Rust for Stellar Soroban

    OpenZeppelin/stellar-contracts’s past year of commit activity
    Rust 76 MIT 44 19 (2 issues need help) 3 Updated Jan 14, 2026