Are these UUID v4 values?

Yes. crypto.getRandomValues produces RFC 4122 v4 IDs with version nibble 4 and valid variant bits.

Can I batch generate without hyphens?

Set a count and choose hyphenated canonical form or 32-char hex compact form for database storage.

v4 collision risk is negligible for practical use, but don't rely on UUIDs alone for unpredictable security tokens.

UUID Generator

Batch generate RFC 4122-compliant Universally Unique Identifiers (UUID v4) with customization.

A minimal and useful online generator for universally unique identifiers (UUID v4) conforming to RFC 4122. Supports batch-generating up to 100 UUIDs at once, with toggles for Uppercase/Lowercase and Hyphens/Clean formats. Ideal for test datasets and DB primary keys.

How to use

1Select the count of UUIDs to generate (from 1 to 100)
2Configure settings like 'Uppercase' and 'Include Hyphens'
3Click 'Generate' to render the randomized UUID list immediately
4Use 'Copy All' or click the copy icon on individual rows to grab results

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FAQ

Are these UUID v4 values?: Yes. crypto.getRandomValues produces RFC 4122 v4 IDs with version nibble 4 and valid variant bits.
Can I batch generate without hyphens?: Set a count and choose hyphenated canonical form or 32-char hex compact form for database storage.
Can UUIDs collide?: v4 collision risk is negligible for practical use, but don't rely on UUIDs alone for unpredictable security tokens.