Friendly Toolkit
UUID Generator
Generate UUIDs
Generate v4 or time-ordered v7 UUIDs in bulk, and decode any UUID.
Free, private, no sign-up
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Suggest an improvementGenerate UUIDs
A new UUID is ready as soon as the page opens. Choose v4 for a random ID or v7 for one that sorts by creation time, pick how many you need (up to 1,000), then copy or download them. Options switch to upper case, remove hyphens or add braces.
Check a UUID
Paste any UUID to see its version and variant. For time-based versions (v1, v6 and v7) you also see when it was created.
Good to know
Are these UUIDs really random?
Yes. They use your browser's cryptographic random generator, never Math.random.
Should I use v4 or v7?
v7 for database keys: IDs made later sort later, which keeps indexes compact. v4 when you don't want the ID to reveal when it was made.
Is a UUID the same as a GUID?
Yes. GUID is Microsoft's name for the same 128-bit format.