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UUID Generator

Generate random UUID v4 identifiers for databases, APIs, and testing workflows.

Generate random UUID v4 identifiers instantly for databases, APIs, testing, and development workflows. Free online UUID generator.

Generated UUIDs

de0ddb82-1d3c-42b1-ae8b-3bf484feae74

Why people use this tool

UUID Generator creates cryptographically random UUID v4 identifiers that you can use for database records, API keys, session tokens, and testing data.

  • Generate unique IDs for database records, API resources, or test fixtures.
  • Create session tokens or correlation IDs for distributed systems.
  • Produce bulk UUIDs for data migration or seeding scripts.

How to use it

  1. 1Set the number of UUIDs to generate and choose uppercase if needed.
  2. 2Click Generate to create new random UUIDs.
  3. 3Copy individual UUIDs or all of them at once.

FAQ

Helpful answers

What is a UUID v4?

A UUID v4 is a 128-bit identifier generated using random numbers. It is virtually guaranteed to be unique without needing a central authority.

Are these UUIDs truly random?

Yes. This tool uses the Web Crypto API for cryptographically secure random number generation.

Can I generate UUIDs in bulk?

Yes. You can generate up to 100 UUIDs at once and copy them all with one click.