Vetted Score
4.7
/ 5.0
Earns a high score for its extensive, well‑documented library, strong security reputation, and widespread adoption across DeFi and NFT projects.
Key Features
Modular, Reusable Contracts
Provides a comprehensive suite of ready‑to‑use Solidity contracts for tokens, access control, governance, and more.
Battle‑Tested Security
All contracts undergo rigorous audits and community review, reducing vulnerabilities in production deployments.
Upgradeable Patterns
Includes proven proxy and upgradeability frameworks to enable contract evolution without losing state.
Frequently Asked Questions
Yes, the library is released under the MIT license, allowing unrestricted commercial use.
The contracts are written in Solidity and work on any EVM‑compatible network such as Ethereum, BSC, Polygon, Avalanche, and others.
While the code is free, OpenZeppelin provides optional paid support, audits, and enterprise consulting services.
Featured Lists & Comparisons
Specifications
Pricing Model
Completely free and open source under the MIT license; paid support and enterprise consulting available.
Supported Platforms
EthereumBinance Smart ChainPolygonAvalanche