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@OpenZeppelin

OpenZeppelin

The standard for secure blockchain applications

Welcome to the OpenZeppelin GitHub 👋

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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 27k 12.4k

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

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

    JavaScript 1.2k 510

  3. openzeppelin-upgrades openzeppelin-upgrades Public

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

    TypeScript 652 281

  4. ethernaut ethernaut Public

    Web3/Solidity based wargame

    Solidity 2.3k 779

  5. cairo-contracts cairo-contracts Public

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

    Rust 912 397

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

    A library for secure smart contract development written in Rust

    Rust 147 78

Repositories

Showing 10 of 182 repositories
  • OpenZeppelin/ethernaut-leaderboard’s past year of commit activity
    JavaScript 14 MIT 12 2 4 Updated Mar 26, 2026
  • guardian Public

    Backup, synchronization, and coordination layer for private accounts.

    OpenZeppelin/guardian’s past year of commit activity
    Rust 4 AGPL-3.0 8 10 (2 issues need help) 3 Updated Mar 26, 2026
  • openzeppelin-adapters Public

    OpenZeppelin Ecosystem Adapters are a set of modular, chain-specific integration packages that bridge the gap between blockchain ecosystems and developer tooling.

    OpenZeppelin/openzeppelin-adapters’s past year of commit activity
    TypeScript 0 0 0 1 Updated Mar 26, 2026
  • rust-project-template Public template
    OpenZeppelin/rust-project-template’s past year of commit activity
    Rust 1 AGPL-3.0 0 0 1 Updated Mar 26, 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 3 Updated Mar 26, 2026
  • openzeppelin-contracts Public

    OpenZeppelin Contracts is a library for secure smart contract development.

    OpenZeppelin/openzeppelin-contracts’s past year of commit activity
    Solidity 27,038 MIT 12,416 241 (3 issues need help) 98 Updated Mar 26, 2026
  • ui-builder Public

    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/ui-builder’s past year of commit activity
    TypeScript 40 AGPL-3.0 13 10 5 Updated Mar 26, 2026
  • docs Public

    The new OpenZeppelin Documentation

    OpenZeppelin/docs’s past year of commit activity
    MDX 7 9 5 9 Updated Mar 26, 2026
  • cairo-contracts Public

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

    OpenZeppelin/cairo-contracts’s past year of commit activity
    Rust 912 MIT 397 29 (1 issue needs help) 6 Updated Mar 26, 2026
  • stellar-contracts Public

    OpenZeppelin Contracts written in Rust for Stellar Soroban

    OpenZeppelin/stellar-contracts’s past year of commit activity
    Rust 76 MIT 50 15 (2 issues need help) 7 Updated Mar 26, 2026