Detect UUID version, variant and embedded timestamp.. UUID Inspector is a free online tool from the ToolsRift Developer Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
Paste a UUID and the tool validates its format and reports the version (1-5), variant, and any embedded metadata such as the timestamp for version 1 UUIDs.
The version is the first character of the third group, so xxxxxxxx-xxxx-4xxx-... is a version 4 (random) UUID.
The variant bits (usually the '8', '9', 'a' or 'b' starting the fourth group) indicate the RFC 4122 layout the UUID follows.
No — only version 1 (and time-ordered variants) embed a timestamp; version 4 UUIDs are random and carry no time information.