Generate one or multiple cryptographically random UUID v4 identifiers
Generators
Generator
How to Use
1Enter the number of UUIDs to generate (1-100)
2Click Generate to create the UUIDs
3Copy the generated UUIDs for use in your project
Frequently Asked Questions
A UUID (Universally Unique Identifier) is a 128-bit label used to uniquely identify objects in computer systems. UUID v4 uses random numbers, making collision probability astronomically low.
UUID v4 has 122 random bits, giving approximately 5.3 × 10^36 unique values. The probability of generating a duplicate UUID is negligible — you could generate 1 billion UUIDs per second for 100 years without a collision.
UUIDs are used as unique identifiers in databases, distributed systems, APIs, file names, and anywhere you need a unique key that does not depend on a central authority.
Yes, GUID (Globally Unique Identifier) is Microsoft's term for UUID. They are the same format and serve the same purpose.