Open Zeppelin

Securely Code, Deploy, and Operate your Smart Contracts

Technology, processes, and people to minimize risk when launching and scaling. Ship faster and more safely.

We build technology to bring freedom to the world

Founded in 2015, OpenZeppelin is the world leader in securing blockchain applications and smart contracts. Its bedrock open source Contract Libraries are a public good and industry standard for smart contract development. OpenZeppelin’s professional expertise, unified with the Defender developer security platform, integrates through clients’ development lifecycles, so teams can plan, code, audit, deploy and operate projects faster and more safely.