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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 509

  3. openzeppelin-upgrades openzeppelin-upgrades Public

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

    TypeScript 651 282

  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 910 398

  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/openzeppelin-sui-amm’s past year of commit activity
    TypeScript 0 MIT 0 29 6 Updated Mar 13, 2026
  • OpenZeppelin/ethernaut-leaderboard’s past year of commit activity
    JavaScript 14 MIT 12 2 4 Updated Mar 13, 2026
  • OpenZeppelin/openzeppelin-transpiler’s past year of commit activity
    TypeScript 22 MIT 10 9 14 Updated Mar 13, 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 12 Updated Mar 13, 2026
  • compact-contracts Public

    OpenZeppelin Contracts written in Compact for Midnight

    OpenZeppelin/compact-contracts’s past year of commit activity
    TypeScript 50 MIT 25 76 15 Updated Mar 13, 2026
  • openzeppelin-relayer Public

    OpenZeppelin Relayer

    OpenZeppelin/openzeppelin-relayer’s past year of commit activity
    Rust 125 AGPL-3.0 54 11 23 Updated Mar 13, 2026
  • OpenZeppelin/relayer-plugin-channels’s past year of commit activity
    TypeScript 3 AGPL-3.0 0 0 15 Updated Mar 13, 2026
  • canton-token-template Public template

    DAML template for CIP-056, Canton Token Standard

    OpenZeppelin/canton-token-template’s past year of commit activity
    Shell 0 AGPL-3.0 0 0 0 Updated Mar 12, 2026
  • daml-lint Public

    Static analysis scanner for DAML contracts

    OpenZeppelin/daml-lint’s past year of commit activity
    Rust 0 AGPL-3.0 0 0 1 Updated Mar 12, 2026
  • daml-verify Public

    Formal verification for DAML contracts

    OpenZeppelin/daml-verify’s past year of commit activity
    Python 0 AGPL-3.0 0 0 0 Updated Mar 12, 2026