UUID Generator
Generate one or many random UUIDs (v4), formatted however you need.
Generated with your browser's built-in cryptographically-secure random number generator.
Frequently asked questions
What UUID version does this generate?+
Version 4 — fully random UUIDs, generated with your browser's cryptographically-secure random number generator (crypto.randomUUID()). This is the most common version for general-purpose unique IDs.
How many can I generate at once?+
Up to 100 at a time — enough for seeding test data or filling out a batch of records.
Are these UUIDs actually unique?+
For all practical purposes, yes — a v4 UUID has 122 random bits, so collisions are astronomically unlikely even across billions of generated IDs.