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@OpenZeppelin

OpenZeppelin

The standard for secure blockchain applications
README.md

Welcome to the OpenZeppelin GitHub 👋

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Explore Popular Repositories

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

  • 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 26.3k 12.2k

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

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

    JavaScript 1.1k 479

  3. openzeppelin-upgrades openzeppelin-upgrades Public

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

    TypeScript 647 286

  4. ethernaut ethernaut Public

    Web3/Solidity based wargame

    Solidity 2.2k 750

  5. cairo-contracts cairo-contracts Public

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

    Rust 886 390

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

    A library for secure smart contract development written in Rust

    Rust 135 72

Repositories

Showing 10 of 155 repositories
  • ethernaut-leaderboard Public
    OpenZeppelin/ethernaut-leaderboard’s past year of commit activity
    JavaScript 14 MIT 45 2 3 Updated Sep 20, 2025
  • contracts-ui-builder Public

    Contracts UI Builder is an open-source blockchain development tool that helps developers and non-developers create user-friendly interfaces for smart contract interaction by providing a chain-agnostic form builder that generates standalone "mini apps" without requiring backend infrastructure.

    OpenZeppelin/contracts-ui-builder’s past year of commit activity
    TypeScript 11 AGPL-3.0 4 0 4 Updated Sep 20, 2025
  • openzeppelin-confidential-contracts Public

    Solidity library of encrypted contracts using Zama's FHEVM

    OpenZeppelin/openzeppelin-confidential-contracts’s past year of commit activity
    Solidity 103 MIT 20 30 9 Updated Sep 20, 2025
  • secure-development-cookbook Public

    The essential blueprint for crafting secure protocols

    OpenZeppelin/secure-development-cookbook’s past year of commit activity
    JavaScript 6 6 1 8 Updated Sep 20, 2025
  • openzeppelin-relayer Public

    OpenZeppelin Relayer

    OpenZeppelin/openzeppelin-relayer’s past year of commit activity
    Rust 93 AGPL-3.0 33 4 (2 issues need help) 12 Updated Sep 20, 2025
  • 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 95 AGPL-3.0 27 9 15 Updated Sep 20, 2025
  • 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 Sep 20, 2025
  • polkadot-runtime-templates Public

    Runtime Templates for Polkadot Parachains

    OpenZeppelin/polkadot-runtime-templates’s past year of commit activity
    Rust 91 GPL-3.0 30 42 (2 issues need help) 8 Updated Sep 20, 2025
  • docs Public

    The new OpenZeppelin Documentation

    OpenZeppelin/docs’s past year of commit activity
    MDX 1 4 4 1 Updated Sep 19, 2025
  • ethernaut Public

    Web3/Solidity based wargame

    OpenZeppelin/ethernaut’s past year of commit activity
    Solidity 2,197 AGPL-3.0 750 24 31 Updated Sep 19, 2025
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