Security & Crypto Tools
UUID Validator / Decoder
Validate a UUID and detect its version and variant.
Loading tool…
What is UUID Validate?
A UUID inspector: it validates the 8-4-4-4-12 format and decodes the version and variant bits encoded in the string.
How it works
A strict regex checks the shape, then the version nibble (char 13) and variant bits (char 17) are read and labeled per RFC 4122.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Realistic sample
Paste or type any realistic input — the tool computes the result locally and instantly.
Common mistakes
Expecting a server round-trip
Nothing is uploaded — every tool in this category runs entirely in your browser.