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@OpenZeppelin

OpenZeppelin

The standard for secure blockchain applications

Welcome to the OpenZeppelin GitHub 👋

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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 27k 12.4k

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

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

    JavaScript 1.2k 510

  3. openzeppelin-upgrades openzeppelin-upgrades Public

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

    TypeScript 654 281

  4. ethernaut ethernaut Public

    Web3/Solidity based wargame

    Solidity 2.3k 780

  5. cairo-contracts cairo-contracts Public

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

    Rust 912 396

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

    A library for secure smart contract development written in Rust

    Rust 148 80

Repositories

Showing 10 of 182 repositories
  • OpenZeppelin/ethernaut-leaderboard’s past year of commit activity
    JavaScript 14 MIT 12 2 4 Updated Apr 11, 2026
  • 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 654 MIT 281 98 (6 issues need help) 28 Updated Apr 10, 2026
  • OpenZeppelin/openzeppelin-sui-marketplace’s past year of commit activity
    TypeScript 2 MIT 1 0 1 Updated Apr 10, 2026
  • openzeppelin-community-contracts Public

    Solidity library of smart contracts from the OpenZeppelin Community

    OpenZeppelin/openzeppelin-community-contracts’s past year of commit activity
    Solidity 86 MIT 37 9 19 Updated Apr 10, 2026
  • contracts-wizard Public

    Interactive smart contract generator based on OpenZeppelin Contracts.

    OpenZeppelin/contracts-wizard’s past year of commit activity
    TypeScript 295 AGPL-3.0 177 14 (1 issue needs help) 24 Updated Apr 10, 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 124 AGPL-3.0 47 6 11 Updated Apr 10, 2026
  • midnight-apps Public

    A collection of starter dapps on Midnight Network

    OpenZeppelin/midnight-apps’s past year of commit activity
    TypeScript 11 MIT 12 47 15 Updated Apr 10, 2026
  • compact-contracts Public

    OpenZeppelin Contracts written in Compact for Midnight

    OpenZeppelin/compact-contracts’s past year of commit activity
    TypeScript 51 MIT 25 89 23 Updated Apr 10, 2026
  • stellar-contracts Public

    OpenZeppelin Contracts written in Rust for Stellar Soroban

    OpenZeppelin/stellar-contracts’s past year of commit activity
    Rust 78 MIT 51 9 (1 issue needs help) 7 Updated Apr 10, 2026
  • 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 1 0 7 Updated Apr 10, 2026

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