UUID Generator
Generates RFC 4122 version-4 UUIDs — the "random UUID" everyone means when they say UUID generator. Covers generate uuid, random uuid generator and generate random uuid in one place.
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Tool 04 — generate
crypto.randomUUID()
Generated0 UUIDs
Generated locally. UUIDs are produced with
crypto.getRandomValues in your browser — never sent to a server, never logged.
FAQ
How do I generate a UUID?
Click Generate. A new random version-4 UUID appears instantly. Raise the count to generate many at once, then copy all.
How are UUIDs generated?
This tool draws from the browser's cryptographically secure random number generator to build a version-4 UUID: 122 random bits laid out per RFC 4122, with fixed version and variant bits.
How do I generate a random UUID in JavaScript?
Call crypto.randomUUID() — supported in modern browsers and Node.js, no library required. That's exactly what this tool calls under the hood.
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