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OpenZeppelin

The standard for secure blockchain applications

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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.

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  • 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 Public

    OpenZeppelin Contracts is a library for secure smart contract development.

    Solidity 25.7k 12k

  2. openzeppelin-contracts-upgradeable Public

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

    JavaScript 1.1k 453

  3. openzeppelin-upgrades Public

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

    TypeScript 643 277

  4. ethernaut Public

    Web3/Solidity based wargame

    Solidity 2.1k 720

  5. cairo-contracts Public

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

    Rust 861 383

  6. rust-contracts-stylus Public

    A library for secure smart contract development written in Rust

    Rust 114 51

Repositories

Showing 10 of 140 repositories
  • JavaScript 14 MIT 44 1 3 Updated Apr 26, 2025
  • openzeppelin-community-contracts Public

    Solidity library of smart contracts from the OpenZeppelin Community

    Solidity 52 MIT 14 6 23 Updated Apr 25, 2025
  • openzeppelin-monitor Public

    A blockchain monitoring service that watches for specific on-chain activities and triggers notifications based on configurable conditions.

    Rust 46 AGPL-3.0 9 1 13 Updated Apr 25, 2025
  • contracts-wizard Public

    Interactive smart contract generator based on OpenZeppelin Contracts.

    TypeScript 257 AGPL-3.0 163 15 (4 issues need help) 13 Updated Apr 25, 2025
  • rust-contracts-stylus Public

    A library for secure smart contract development written in Rust

    Rust 114 MIT 51 69 (9 issues need help) 9 Updated Apr 25, 2025
  • cairo-contracts Public

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

    Rust 861 MIT 383 41 (3 issues need help) 13 Updated Apr 25, 2025
  • uniswap-hooks Public

    Solidity library for secure and modular Uniswap hooks.

    Solidity 73 MIT 19 12 1 Updated Apr 25, 2025
  • minimal-rollup Public

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

    Solidity 33 MIT 6 19 15 Updated Apr 25, 2025
  • docs.openzeppelin.com Public

    Source for the OpenZeppelin documentation site

    SCSS 46 92 28 (1 issue needs help) 5 Updated Apr 25, 2025
  • stellar-contracts Public

    OpenZeppelin Contracts written in Rust for Stellar Soroban

    Rust 28 MIT 16 8 (1 issue needs help) 2 Updated Apr 25, 2025