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OpenZeppelin

The standard for secure blockchain applications

Welcome to the OpenZeppelin GitHub 👋

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Join our developer community on Telegram!


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!

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  1. openzeppelin-contracts openzeppelin-contracts Public

    OpenZeppelin Contracts is a library for secure smart contract development.

    Solidity 26.9k 12.4k

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

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

    JavaScript 1.1k 503

  3. openzeppelin-upgrades openzeppelin-upgrades Public

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

    TypeScript 648 287

  4. ethernaut ethernaut Public

    Web3/Solidity based wargame

    Solidity 2.3k 781

  5. cairo-contracts cairo-contracts Public

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

    Rust 903 396

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

    A library for secure smart contract development written in Rust

    Rust 145 77

Repositories

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Showing 10 of 169 repositories
  • OpenZeppelin/ethernaut-leaderboard’s past year of commit activity
    JavaScript 14 MIT 47 2 4 Updated Jan 12, 2026
  • 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 1,143 MIT 503 4 5 Updated Jan 12, 2026
  • contracts-wizard Public

    Interactive smart contract generator based on OpenZeppelin Contracts.

    OpenZeppelin/contracts-wizard’s past year of commit activity
    TypeScript 292 AGPL-3.0 185 16 (1 issue needs help) 23 Updated Jan 12, 2026
  • openzeppelin-relayer Public

    OpenZeppelin Relayer

    OpenZeppelin/openzeppelin-relayer’s past year of commit activity
    Rust 113 AGPL-3.0 47 11 (2 issues need help) 23 Updated Jan 12, 2026
  • openzeppelin-contracts Public

    OpenZeppelin Contracts is a library for secure smart contract development.

    OpenZeppelin/openzeppelin-contracts’s past year of commit activity
    Solidity 26,895 MIT 12,393 238 (1 issue needs help) 74 Updated Jan 12, 2026
  • private-state-manager Public

    Cloud backup and syncronization layer for Miden private accounts

    OpenZeppelin/private-state-manager’s past year of commit activity
    Rust 2 AGPL-3.0 2 8 (1 issue needs help) 0 Updated Jan 12, 2026
  • openzeppelin-relayer-sdk Public

    OpenZeppelin Relayer SDK

    OpenZeppelin/openzeppelin-relayer-sdk’s past year of commit activity
    TypeScript 10 AGPL-3.0 5 0 16 Updated Jan 12, 2026
  • 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 117 AGPL-3.0 41 10 11 Updated Jan 12, 2026
  • openzeppelin-ui Public

    OpenZeppelin UI - React components and utilities for blockchain applications

    OpenZeppelin/openzeppelin-ui’s past year of commit activity
    TypeScript 3 AGPL-3.0 0 0 0 Updated Jan 12, 2026
  • OpenZeppelin/openzeppelin-sui-marketplace’s past year of commit activity
    TypeScript 0 MIT 0 0 0 Updated Jan 12, 2026

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