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UUID Generator
Generate random v4 UUIDs in bulk for fixtures and test data.
Tool Panel
Processed locallyAbout UUID Generator
Generates v4 UUIDs with crypto.randomUUID, in batches when you need more than one.
- 1
Generates any number of v4 UUIDs from the browser secure random source.
- 2
Optional no-hyphen format and case switching, so nothing needs fixing after pasting.
- 3
Copy one at a time or the whole batch at once.
- 1
Set the count
Five by default — raise or lower as needed.
- 2
Pick a format
Turn on the no-hyphen option for 32-character IDs.
- 3
Copy
Copy a single UUID or the entire list.
They are v4 UUIDs taken from the browser secure random source, not derived from time or machine details.
v4 carries 122 random bits, so collisions are negligible in practice.
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