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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!

Pinned Loading

  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 652 281

  4. ethernaut ethernaut Public

    Web3/Solidity based wargame

    Solidity 2.3k 778

  5. cairo-contracts cairo-contracts Public

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

    Rust 912 397

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

    A library for secure smart contract development written in Rust

    Rust 147 79

Repositories

Showing 10 of 181 repositories
  • OpenZeppelin/ethernaut-leaderboard’s past year of commit activity
    JavaScript 14 MIT 12 2 4 Updated Mar 22, 2026
  • OpenZeppelin/openzeppelin-transpiler’s past year of commit activity
    TypeScript 22 MIT 10 9 17 Updated Mar 22, 2026
  • openzeppelin-contracts Public

    OpenZeppelin Contracts is a library for secure smart contract development.

    OpenZeppelin/openzeppelin-contracts’s past year of commit activity
    Solidity 27,038 MIT 12,418 243 (2 issues need help) 97 Updated Mar 22, 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 122 AGPL-3.0 46 6 12 Updated Mar 22, 2026
  • midnight-apps Public

    A collection of starter dapps on Midnight Network

    OpenZeppelin/midnight-apps’s past year of commit activity
    TypeScript 10 MIT 11 47 11 Updated Mar 21, 2026
  • guardian Public

    Backup, synchronization, and coordination layer for private accounts.

    OpenZeppelin/guardian’s past year of commit activity
    Rust 4 AGPL-3.0 8 9 (2 issues need help) 3 Updated Mar 22, 2026
  • rust-project-template Public template
    OpenZeppelin/rust-project-template’s past year of commit activity
    Rust 1 AGPL-3.0 0 0 3 Updated Mar 21, 2026
  • openzeppelin-relayer-sdk Public

    OpenZeppelin Relayer SDK

    OpenZeppelin/openzeppelin-relayer-sdk’s past year of commit activity
    TypeScript 11 AGPL-3.0 5 0 13 Updated Mar 21, 2026
  • Event-Scanner Public

    A lightweight highly performant event scanner built in rust

    OpenZeppelin/Event-Scanner’s past year of commit activity
    Rust 17 MIT 5 21 2 Updated Mar 21, 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 4 MIT 3 11 2 Updated Mar 21, 2026