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The standard for secure blockchain applications


  1. OpenZeppelin Contracts is a library for secure smart contract development.

    JavaScript 13k 6.6k

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

    TypeScript 183 83

  3. Assertion library for Ethereum smart contract testing

    JavaScript 266 86

  4. Blockchain educational resources curated by the OpenZeppelin team

    273 67

  5. Web3/Solidity based wargame

    JavaScript 712 206