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How to use API Key Generator

Choose hex, UUID, or base58 format and a length, and the tool generates a random API key string ready to copy into your app's environment variables or config.

Frequently asked questions

Which format should I use?

Hex is the most universally compatible; UUID is common where keys double as identifiers; base58 avoids visually ambiguous characters (0/O, l/I) in keys users may need to type.

Is this generated securely enough to actually use?

Yes. Generation uses your browser's cryptographically secure random source (Web Crypto API), not a predictable pseudo-random function.

Does this tool send anything to a server?

No. Everything is generated entirely client-side in your browser — nothing you generate is ever transmitted anywhere.

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