UUID Generator
Generate RFC 4122 version 4 UUIDs in bulk, free and instantly in your browser. Copy single IDs or export a batch as a list.
IN: Quantity · OUT: UUID v4 list · RUNS: 100% in your browser
9e45c160-6888-45f4-826a-b24c98ed36a9 a69b733d-1068-4c96-9ecc-8e142f1e5f30 4766e9a9-ad31-4450-8b54-e171cd0c3492 b87ec5e4-e62d-4a39-9d59-c25941f02fc2 e1eda0fd-38de-4b30-89d8-980119f4f022
Frequently asked questions
What version of UUID does this generate?+
This tool generates version 4 UUIDs, which are based on random numbers and are the most common choice for database primary keys and distributed IDs.
Are the UUIDs guaranteed to be unique?+
UUID v4 has 122 random bits, so collisions are astronomically unlikely, making it globally unique for practical purposes.
Can I generate more than one UUID at a time?+
Yes, use the quantity control to generate up to 1,000 UUIDs at once and copy or download them as a text file.
Does the generator use a secure random source?+
Yes, it uses the browser's crypto.getRandomValues API rather than Math.random for cryptographically strong randomness.