UUID Generator
Generates universally unique identifiers (UUIDs) in different versions. Useful for database records, session tracking, and unique key assignments.
UUID Generator — Free Online Tool
Generates universally unique identifiers (UUIDs) in different versions. Useful for database records, session tracking, and unique key assignments.
How to use the UUID Generator
- Open the tool above — it runs entirely in your browser, so your input never leaves this page.
- Paste or type your input into the field, then press the relevant button (e.g. Encode / Decode, Generate, or Convert).
- Copy the result from the output area with the copy button orCtrl/Cmd + C.
- No signup, no upload, and no tracking — repeat as often as you need.
Frequently asked questions
What UUID versions does this generator support?
It generates version 4 (random) and version 7 (time-ordered) UUIDs, and can validate any UUID to confirm its format and version.
Are generated UUIDs unique?
UUIDv4 uses 122 random bits, making collisions astronomically unlikely. UUIDv7 additionally embeds a millisecond timestamp so UUIDs sort naturally by creation time.
Free & private — why use this UUID Generator
The UUID Generator runs 100% client-side in your browser. Your data is never uploaded to a server, no account is required, and the tool is completely free. It works offline once the page has loaded and is part of a growing collection of privacy-first developer utilities.