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OpenZeppelin

The standard for secure blockchain applications

Welcome to the OpenZeppelin GitHub 👋

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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 25.7k 12k

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

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

    JavaScript 1.1k 458

  3. openzeppelin-upgrades openzeppelin-upgrades Public

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

    TypeScript 642 277

  4. ethernaut ethernaut Public

    Web3/Solidity based wargame

    Solidity 2.1k 720

  5. cairo-contracts cairo-contracts Public

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

    Rust 863 387

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

    A library for secure smart contract development written in Rust

    Rust 118 54

Repositories

Showing 10 of 142 repositories
  • OpenZeppelin/ethernaut-leaderboard’s past year of commit activity
    JavaScript 14 MIT 46 1 4 Updated May 6, 2025
  • openzeppelin-community-contracts Public

    Solidity library of smart contracts from the OpenZeppelin Community

    OpenZeppelin/openzeppelin-community-contracts’s past year of commit activity
    Solidity 53 MIT 16 6 19 Updated May 6, 2025
  • contracts-wizard Public

    Interactive smart contract generator based on OpenZeppelin Contracts.

    OpenZeppelin/contracts-wizard’s past year of commit activity
    TypeScript 258 AGPL-3.0 163 15 (4 issues need help) 15 Updated May 6, 2025
  • openzeppelin-contracts Public

    OpenZeppelin Contracts is a library for secure smart contract development.

    OpenZeppelin/openzeppelin-contracts’s past year of commit activity
    Solidity 25,734 MIT 12,024 225 (1 issue needs help) 68 Updated May 6, 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 48 AGPL-3.0 10 1 12 Updated May 6, 2025
  • openzeppelin-contracts-upgradeable Public

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

    OpenZeppelin/openzeppelin-contracts-upgradeable’s past year of commit activity
    JavaScript 1,058 MIT 458 4 7 Updated May 6, 2025
  • uniswap-hooks Public

    Solidity library for secure and modular Uniswap hooks.

    OpenZeppelin/uniswap-hooks’s past year of commit activity
    Solidity 76 MIT 23 12 4 Updated May 6, 2025
  • minimal-rollup Public

    A minimal based rollup implementation that is easy to understand and extend

    OpenZeppelin/minimal-rollup’s past year of commit activity
    Solidity 37 MIT 6 18 17 Updated May 6, 2025
  • safe-utils Public Forked from pcaversaccio/safe-tx-hashes-util

    This UI calculates the Safe transaction hashes computing both the domain and messages hashes

    OpenZeppelin/safe-utils’s past year of commit activity
    TypeScript 36 AGPL-3.0 63 3 2 Updated May 6, 2025
  • rust-contracts-stylus Public

    A library for secure smart contract development written in Rust

    OpenZeppelin/rust-contracts-stylus’s past year of commit activity
    Rust 118 MIT 54 70 (9 issues need help) 13 Updated May 6, 2025