Private developer and technical tools

UUID Generator

Choose how many UUIDs you need, from 1 to 100, and the generator creates random version 4 UUIDs, one per line, ready to copy or download. Each value comes from your browser's cryptographically secure random generator, so nothing is requested from a server and no list is stored.

Your input stays in this browser. Rabetly does not receive or store code, tokens, headers, or technical data.

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Result

Your processed result will appear here.

How to generate UUIDs online

  1. Enter how many UUIDs you need in the Number to generate field, from 1 to 100.
  2. Click Process locally to create the UUIDs.
  3. Read the list in the Result panel, where each UUID sits on its own line.
  4. Click Copy to paste them into your code or database, or Download to save them as a text file.

When to use a UUID generator

  • A backend developer creating primary keys for seed data or database fixtures.
  • A tester who needs unique IDs for test records, request IDs or idempotency keys.
  • A .NET or SQL Server developer who needs a GUID for a config file or a new record.
  • A product team generating unique identifiers for feature flags, assets or webhook subscriptions.

How this tool works

The transformation runs locally in your browser. Entered values are not sent to Rabetly, put in the URL, or added to analytics.

UUID Generator: frequently asked questions

Which UUID version does this generator create?

Version 4. These UUIDs are built from random bits with the standard version and variant markers, in the 8-4-4-4-12 lowercase hexadecimal format. Time-ordered versions such as v1 or v7 are not generated.

How many UUIDs can I generate at once?

Up to 100 per click, and at least 1. Each run creates a fresh list that you can copy in one step or download as a text file.

Can two generated UUIDs ever be the same?

In practice, no. A version 4 UUID has 122 random bits, so the chance of a duplicate is negligible even across billions of values.

Is a UUID the same as a GUID?

Yes. GUID is the name Microsoft uses for the same 128-bit identifier, so these values work wherever a GUID is expected. Some Microsoft tools show GUIDs in uppercase, but letter case does not change the value.

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