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The Secure Environment
for Builders in your Ecosystem

Onboard developers and enterprises to securely and efficiently deploy onchain applications, leveraging integration with industry-standard tools & services.

Trusted by the world’s leading projects

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Total value transferred
via OpenZeppelin Contracts

Dune
Explore Dune Dashboard ->

$5,255,314,730,980T

Dune
Explore Dune Dashboard ->
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The OpenZeppelin Ecosystem Stack

Securely Build & Operate in your Ecosystem

OpenZeppelin Contracts Libraries

Speed up development process and minimize risk across your ecosystem with OpenZeppelin libraries customized to your programming language or tech stack.

Pre-built templates for:

  • Tokens
  • NFTs
  • Governance
  • Asset tokenization
  • Stablecoins
  • Access control
Explore Contracts Libraries
ERC20 ERC721 ERC1155 Governor Custom
Your network wizard Your network wizard Your network wizard Your network wizard Your network wizard Your network wizard

Defender Cloud for Starting and Scaling

Provide a secure environment for builders in your ecosystem to operate, monitor, and automate applications from testnet to mainnet, at any scale.

Discover Defender Platform
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Tooling for best-in-class Developer experience

Make devs more productive and reduce onboarding friction. Plugins for deployments & upgrades, AI-powered code scanners, and best-in-class documentation.

Check out Plugins
Github
Hardhat
Etherscan
Safe
Foundry

Community Enablement with Ethernaut

We contribute to community standards, create workshops & educational content, and conduct joint marketing campaigns.

Check out Ethernaut

Gold Standard Audits & Emergency Response

Build trust within your community. An always-ready elite team of whitehat hackers and security professionals well-versed with your technologies.

Learn about Audits
Audit Report
We found 19 issues in your blockchain system.
Issues Found
5 Critical
3 High
7 Med
2 Low
2 Notes
Description
The issue puts a large number of users’ sensitive assets at risk
The issue puts a significant number of users’ sensitive assets at risk
Implementation that does not adhere to the specified system
The issue is relatively small, could not be exploited regularly
The issue is not exploitable but still worth resolving to increase the...
Enterprise-grade security and compliance for institutional adoption
CCPA CCPA
SOC2 SOC2
GDPR GDPR

Trusted by developers and foundations of leading ecosystems

Ethereum Ecosystem Stack

OpenZeppelin Contracts Library for Solidity

Dev and security tooling

Defender cloud infrastructure support

Community Enablement

Gold Standard Audits and Incident Response

EIPs & ERCs Standards Development

“Collaborating with OpenZeppelin on our security audit was a productive and positive experience. We appreciated their thoroughness and attention to detail.”

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Yoav Weiss

Security, Ethereum Foundation

Arbitrum Ecosystem Stack

OpenZeppelin Contracts Library for Stylus (Rust)

Gold Standard Audits for Ecosystem Builders

Defender cloud infrastructure support

Community Enablement

Security Council member for Arbitrum DAO

“We're thrilled to be collaborating with OpenZeppelin to help provide a secure environment for Stylus builders in the Arbitrum ecosystem.”

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Nina Rong

Head of Ecosystem Development, Arbitrum Foundation

Starknet Ecosystem Stack

OpenZeppelin Contracts Library for Cairo

Dev and security tooling

Community Enablement

Gold Standard Audits

"We enjoy working with OpenZeppelin to provide secure and reliable smart contracts that help developers build new amazing products on Starknet”

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Derek Flossman

Product, Starknet Foundation

Polkadot Ecosystem Stack

OpenZeppelin Library of
Runtime Templates for Substrate

Dev and security tooling

Community Enablement

Gold Standard Audits

"We are ecstatic to join forces with @OpenZeppelin! This collaboration with the Polkadot community underscores our commitment to enhancing the development experience for Polkadot Parachain builders in a secure and seamless way.”

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Santiago Balaguer

Ecosystem, Parity

Grow your ecosystem with the OpenZeppelin Stack

Talk to an Expert