UUID Generator
Generate one or multiple cryptographically random UUID v4 values in one click. Bulk generate up to 50 UUIDs, copy individually or all at once. Free, private, no server.
Frequently Asked Questions
What is a UUID?
UUID (Universally Unique Identifier) is a 128-bit identifier standardized by RFC 4122. UUID v4 is randomly generated and has an astronomically low chance of collision.
How do I generate a UUID online?
Select how many UUIDs you need (1, 5, 10, 20, or 50) and click Generate. All UUIDs are generated using the browser's cryptographic random number generator.
Are these UUIDs truly unique?
UUID v4 uses 122 bits of randomness. The probability of generating two identical UUIDs is practically impossible in any real-world scenario.
Is this UUID generator free?
Yes — free forever, no account needed. UUIDs are generated entirely in your browser using crypto.randomUUID().