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UUID v4 Generator

Generate random identifiers without sending them to a service.

Your inputs stay in this browser. No account or processing API needed.

Create random UUIDs

Generate 1–1,000 version 4 UUIDs using your browser’s cryptographic random generator.

How to generate UUIDs

  1. Enter how many identifiers you need, from 1 to 1,000.
  2. Choose Generate UUIDs.
  3. Copy all identifiers or download the TXT list.

Example format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx, where y is 8, 9, a, or b. Each identifier contains 32 hexadecimal characters and four hyphens.

Are UUIDs guaranteed unique?

Random version 4 UUIDs make collisions extremely unlikely, but cannot guarantee uniqueness. Enforce uniqueness in your database when required. A UUID is an identifier, not a password or access-control mechanism.

Does this contact a server?

No. Generation uses your browser’s cryptographic random generator. Identifiers are not saved by NeatlyKit. Changing the count clears old output so you cannot accidentally copy an outdated batch.