Generate random v4 UUIDs, one or a hundred at once.
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How to use UUID Generator
Open the UUID Generator tool. It loads instantly, with no sign-up.
Set the options you need (length, count, format).
Generate, then copy the result with one click.
Regenerate as many times as you like; nothing is stored on a server.
About UUID Generator
Generate version-4 UUIDs in bulk, using the browser's cryptographically secure randomness. Toggle dashes on or off and switch to uppercase, then copy individually or all at once.
What people use it for
Create unique IDs for database rows or test fixtures.
Generate a batch of UUIDs for seeding data.
Frequently asked questions
Are the UUIDs random?
Yes: v4 UUIDs from crypto.randomUUID / getRandomValues, so they're cryptographically random.
Can I remove the dashes?
Yes, and you can uppercase them too.
Is it private?
Every calculation happens on this page, in your own browser. Your input is never sent to a server and never logged, which also means the tool keeps working when you are offline.