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Build Secure Smart Contracts in Solidity

OpenZeppelin Contracts helps you minimize risk by using battle-tested libraries of smart contracts for Ethereum and other blockchains. It includes the most used implementations of ERC standards.

 Bootstrap your smart contract creation with OpenZeppelin Contracts Wizard. 

 

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Reduce the risk of vulnerabilities in your applications by using standard, tested, community-reviewed code.

Focused on security

Using top level standard contracts security patterns and best practices.
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Modular approach

Simple, robust code. Easy collaboration and auditing.
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Open source

Community-driven. Used by the biggest players in the industry.
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Projects building with OpenZeppelin Contracts

Your blueprint for decentralized systems

Automate your workflow

Automate your Ethereum operations using OpenZeppelin Defender to deliver high-quality products faster with lower risk to users.

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Join our community

Ask questions to our community, learn about security and become familiar with smart contract development.