Generators & Utilities
UUID Generator
Generate RFC 4122 version 4 UUIDs with crypto.randomUUID. Copy one, or a list, with or without hyphens.
Loading tool…
This runs entirely in your browser. Nothing you type is sent to a server.
How to generate a UUID
- 1Choose how many identifiers you need.
- 2Optionally remove hyphens or switch to uppercase.
- 3Copy one value or the whole list.
Questions
Which UUID version is this?
Version 4, which is random rather than time-based or name-based. The version and variant bits are set by the browser’s randomUUID implementation.
Can two of these collide?
A version 4 UUID has 122 random bits. A collision is not a practical concern for application identifiers generated this way.