JFPJSON Format Plus

UUID v4 Generator

Create UUID v4 identifiers for fixtures, database records, tests, and documentation. Values come from the browser cryptographic random source and can be generated in a clean newline-separated list.

Secure UUID generationWeb Crypto
Ready to generate UUIDs.
Ready to generate UUIDs.
Ready to generate UUIDs.

Data handling notes

  • Generation uses `crypto.randomUUID` when available.
  • Fallback generation uses `crypto.getRandomValues`, never `Math.random`.
  • UUIDs are identifiers; they should not be treated as secret authentication tokens.

FAQ

Are duplicate UUIDs possible?The probability is extremely small with a correct cryptographic random source, but no finite random namespace is mathematically impossible to collide.
Can UUIDs be used as passwords?No. They identify records and do not replace purpose-built secrets or credentials.