UUID Validator
Check whether values are well-formed UUIDs, and read their version and timestamp.
Your result will appear here as soon as you add some input.
How to use it
- 1Paste your input into the input box, or type it directly.
- 2Adjust the options if you need something other than the defaults.
- 3The result updates as you type.
- 4Copy the result to your clipboard or download it as a file.
About the UUID Validator
Structure is checked against the 8-4-4-4-12 layout, and the version and variant nibbles are read out of the value itself.
Version 1 and version 7 carry a timestamp, which is decoded and shown. That is worth knowing before using either in a public URL: they leak when the record was created.
Questions people ask
Is your code uploaded to a server?
No. This tool runs entirely in your browser using standard web APIs, so your code never leaves your device. You can confirm it by opening your browser's network panel while the tool runs, or by disconnecting from the internet after the page has loaded.
Is it free, and do I need an account?
Yes, it is free, and there is no account, no sign-up and no watermark on the result. The project is funded by optional donations.