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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 26.1k 12.1k

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

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

    JavaScript 1.1k 475

  3. openzeppelin-upgrades openzeppelin-upgrades Public

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

    TypeScript 645 281

  4. ethernaut ethernaut Public

    Web3/Solidity based wargame

    Solidity 2.2k 743

  5. cairo-contracts cairo-contracts Public

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

    Rust 880 387

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

    A library for secure smart contract development written in Rust

    Rust 125 69

Repositories

Showing 10 of 152 repositories
  • 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 125 MIT 69 80 (7 issues need help) 9 Updated Aug 15, 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 93 MIT 13 28 8 Updated Aug 15, 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 66 MIT 23 8 23 Updated Aug 15, 2025
  • openzeppelin-contracts Public

    OpenZeppelin Contracts is a library for secure smart contract development.

    OpenZeppelin/openzeppelin-contracts’s past year of commit activity
    Solidity 26,094 MIT 12,112 239 (1 issue needs help) 73 Updated Aug 15, 2025
  • contracts-wizard Public

    Interactive smart contract generator based on OpenZeppelin Contracts.

    OpenZeppelin/contracts-wizard’s past year of commit activity
    TypeScript 268 AGPL-3.0 169 13 (2 issues need help) 22 Updated Aug 14, 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 2 AGPL-3.0 1 0 1 Updated Aug 14, 2025
  • compact-contracts Public

    OpenZeppelin Contracts written in Compact for Midnight

    OpenZeppelin/compact-contracts’s past year of commit activity
    TypeScript 21 MIT 7 78 5 Updated Aug 14, 2025
  • openzeppelin-relayer Public

    OpenZeppelin Relayer

    OpenZeppelin/openzeppelin-relayer’s past year of commit activity
    Rust 85 AGPL-3.0 26 4 (2 issues need help) 7 Updated Aug 14, 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 82 AGPL-3.0 24 9 9 Updated Aug 14, 2025
  • stellar-contracts Public

    OpenZeppelin Contracts written in Rust for Stellar Soroban

    OpenZeppelin/stellar-contracts’s past year of commit activity
    Rust 48 MIT 28 22 (1 issue needs help) 9 Updated Aug 14, 2025