UUID Generator
Generate random UUID v4 identifiers instantly
How to Use UUID Generator
- Click "Generate" to create a new UUID
- The UUID appears in the output field
- Click "Copy" to copy to your clipboard
- Generate as many UUIDs as you need
About UUID Generator
Generate universally unique identifiers (UUIDs) instantly with our free UUID v4 generator. UUIDs are 128-bit identifiers used in databases, distributed systems, and anywhere you need guaranteed unique IDs. Our generator uses cryptographically secure random numbers.
Frequently Asked Questions
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit identifier that's virtually guaranteed to be unique. UUID v4 uses random numbers to generate IDs.
Are these UUIDs truly unique?
Yes. The probability of generating two identical UUID v4s is astronomically low (about 1 in 5.3 x 10^36). They're safe to use as unique identifiers.
What's the difference between UUID and GUID?
They're essentially the same thing. GUID (Globally Unique Identifier) is Microsoft's term for UUID. Both follow the same format and specification.
Can I generate multiple UUIDs at once?
Currently you generate one at a time. Click "Generate" repeatedly for multiple UUIDs, or let us know if you need bulk generation.