UUID Generator

Generate random RFC 4122 version 4 UUIDs in bulk, with optional uppercase and no-hyphen formats.

100% private — everything runs in your browser

How to Use

1
Choose how many UUIDs you need (1 to 100).
2
Adjust the format: keep hyphens for the standard form or turn them off for database keys.
3
Click Generate and copy the whole list with one click.

Examples

Standard UUID v4

Input

Count 1, hyphens on

Output

550e8400-e29b-41d4-a716-446655440000

Compact identifier

Input

Count 1, hyphens off, uppercase on

Output

550E8400E29B41D4A716446655440000

FAQ

Are these UUIDs unique?

Version 4 UUIDs are generated from 122 random bits. The chance of a collision is negligible for any practical number of IDs.

Are the UUIDs generated on a server?

No. They come from crypto.getRandomValues in your browser, so nothing is transmitted.

Can I use them as database keys?

Yes. Remove the hyphens if your column stores 32 hexadecimal characters.

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