Flimpa

UUID Generator

Generate UUID v4 identifiers in bulk.

Create random UUID version 4 identifiers via the browser Web Crypto API. Control count, letter case and whether hyphens are kept.

Limitations

UUID v4 is for identification, not authentication or secrets. Other versions (time-based, name-based) are not produced. A string without hyphens is the same 128 bits but may break systems that expect canonical form.

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FAQ

UUID version 4 (random) via the browser Web Crypto API.

UUID version 4 (random) via the browser Web Crypto API.

No, the v4 UUID is for identification, not authentication or secret storage. For API keys, reset tokens, and other secret values, use a cryptographically random token of sufficient length.