UUID Generator
Generate random RFC 4122 version 4 UUIDs in bulk, with optional uppercase and no-hyphen formats. Free, runs offline.
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Frequently Asked Questions
- Are these UUIDs truly unique?
- Version 4 UUIDs contain 122 random bits, so the chance of a collision is negligible even across billions of IDs.
- What is the difference between a UUID and a GUID?
- They are the same thing. GUID is Microsoft's name for the same 128-bit identifier format.
- Can I generate UUIDs without hyphens?
- Yes. Untick the hyphens option to get a continuous 32-character string.