UUID / GUID Generator (v4)

Generate cryptographically random UUID v4 identifiers in bulk.

About this tool

Create collision-resistant unique identifiers for database records, session keys, and mock data.

How to use this tool

  1. Specify count to generate
  2. Click Run
  3. Copy unique UUIDs

How it works

Uses hardware entropy from crypto.randomUUID to ensure RFC4122 version 4 compliance.

When to use this tool

  • Primary keys for databases
  • Correlation IDs for distributed tracing

Frequently asked questions

Are these UUIDs collision-proof?

With 122 bits of random entropy, the probability of collision is negligible.

Limitations

Generates standard version 4 random UUIDs.

Privacy

Zero telemetry recorded.