UUID Generator
Generate RFC 4122 compliant UUID v4 identifiers using crypto.randomUUID().
Processed in your browser. Nothing is sent to the server.
c6481cbb-cbd1-4287-8484-c1b676ddf33eUUIDs
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit unique identifier. UUID v4 is generated from cryptographically secure random numbers, with a collision probability so low it's negligible, making it widely used for ID generation in distributed systems.
This tool uses the crypto.randomUUID() API to generate UUID v4 in your browser. The format complies with RFC 4122.
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FAQ
What is UUID v4?
UUID v4 is a 128-bit identifier generated from cryptographically secure random numbers. The probability of generating two identical UUIDs is astronomically low (about 1 in 5.3 x 10^36).
Are these UUIDs cryptographically secure?
Yes. This tool uses crypto.randomUUID(), which generates random numbers from the operating system's cryptographically secure random number generator.