Developer UUID tools
UUID Decoder
Paste a UUID to inspect its structure, version, variant, formatting, and timestamp details where the version supports it.
UUID decoder
Paste a UUID to inspect its format, version, variant, hyphenation, Nil UUID status, and UUID v7 timestamp when available.
Hyphenated, compact, and braced UUID strings are accepted.
Decoder output will appear here after you inspect a UUID.
What the UUID decoder checks
The decoder validates the UUID shape, normalizes compact or braced input, reports the version digit, identifies the standard variant, and detects the Nil UUID.
For UUID v7 values, it also extracts the approximate timestamp encoded in the leading bytes.
Decoder vs validator
A validator answers whether a UUID is valid. A decoder goes further by explaining what the UUID contains and how it is formatted.
FAQ
Does the UUID decoder send input to a server?+
No. The decoder runs in your browser and does not send pasted UUIDs to a server.
Can the decoder read a UUID v7 timestamp?+
Yes. For valid UUID v7 values, it shows the approximate timestamp encoded in the UUID.
Can it decode compact UUID strings?+
Yes. It accepts UUIDs with hyphens, without hyphens, or wrapped in braces.