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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 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 508

  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 782

  5. cairo-contracts cairo-contracts Public

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

    Rust 907 402

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

    A library for secure smart contract development written in Rust

    Rust 146 77

Repositories

Showing 10 of 172 repositories
  • openzeppelin-confidential-contracts Public

    Solidity library of encrypted contracts using Zama's FHEVM

    OpenZeppelin/openzeppelin-confidential-contracts’s past year of commit activity
    Solidity 143 MIT 40 37 7 Updated Feb 4, 2026
  • openzeppelin-relayer Public

    OpenZeppelin Relayer

    OpenZeppelin/openzeppelin-relayer’s past year of commit activity
    Rust 118 AGPL-3.0 50 11 (1 issue needs help) 24 Updated Feb 4, 2026
  • OpenZeppelin/ethernaut-leaderboard’s past year of commit activity
    JavaScript 14 MIT 47 2 4 Updated Feb 4, 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 907 MIT 402 30 (1 issue needs help) 6 Updated Feb 4, 2026
  • contracts-wizard Public

    Interactive smart contract generator based on OpenZeppelin Contracts.

    OpenZeppelin/contracts-wizard’s past year of commit activity
    TypeScript 294 AGPL-3.0 186 15 (1 issue needs help) 22 Updated Feb 4, 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 0 0 3 Updated Feb 4, 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 119 AGPL-3.0 46 6 10 Updated Feb 4, 2026
  • midnight-apps Public

    A collection of starter dapps on Midnight Network

    OpenZeppelin/midnight-apps’s past year of commit activity
    TypeScript 8 MIT 9 49 14 Updated Feb 4, 2026
  • stellar-upgrader-cli Public

    CLI that help developers to upgrade stellar contracts

    OpenZeppelin/stellar-upgrader-cli’s past year of commit activity
    Rust 3 AGPL-3.0 1 5 2 Updated Feb 4, 2026
  • Robust-Provider Public

    Timeout-aware, auto-retrying, failover-ready RPC provider wrapper for Alloy built in Rust

    OpenZeppelin/Robust-Provider’s past year of commit activity
    Rust 2 MIT 2 10 2 Updated Feb 4, 2026