UUID v4
Generate version-4 UUIDs with crypto.randomUUID.

Details
This makes version-4 identifiers with the browser's random source. They are random IDs. They are not a login, not a checksum, and not a record that this site stores.

Category: Developer
Page: /tools/uuid-generator
Text: /tools/uuid-generator.txt

Limits
These are random IDs, not a login and not a checksum.

Steps
1. Choose how many.
2. Toggle hyphens and case.
3. Copy one or all.

Questions
Are they version 7?
No. Version 4 only.

Can two match?
The chance is negligible for normal use. This is not a uniqueness database.

Nothing is uploaded. Closing the tab drops the file.
The generator is the browser’s crypto API.