UUID Generator
The UUID Generator creates cryptographically-random version-4 UUIDs (RFC 4122) — the universally-unique identifiers used for database keys, API tokens, and record IDs. Generate up to 100 at once, toggle hyphens and uppercase, and copy any one or the whole batch.
Generates cryptographically-random version-4 UUIDs (RFC 4122) right in your browser — nothing is sent to a server, so every ID stays private. Up to 100 at a time.
How This Tool Works
Choose how many UUIDs you want and whether to include hyphens or uppercase letters, then press Generate. Copy any single UUID or the whole list with one click.
Formula & Method
A version-4 UUID is 122 random bits (with 6 fixed version/variant bits) shown as 32 hexadecimal digits in the pattern 8-4-4-4-12. The randomness comes from your browser’s cryptographic random number generator.
Example Calculation
Press Generate with a count of 5 to get five unique IDs like “3f2a9c14-8b7e-4d5a-9f10-2c6b1e8a4d33”, ready to paste into your database or code.
Frequently Asked Questions
What version of UUID is this?+
Version 4 — the random variant defined in RFC 4122. It’s the most common choice for database keys and API identifiers.
Are these UUIDs truly unique?+
Version-4 UUIDs have 122 random bits, so the odds of a collision are astronomically small — for practical purposes they’re unique.
Are the UUIDs generated privately?+
Yes — they’re created locally with your browser’s crypto API and never sent anywhere, so they’re safe to use as secrets or keys.
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<a href="https://everyfix.net/tools/uuid-generator/">UUID Generator</a> by <a href="https://everyfix.net">EveryFix</a>Related Tools
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