UUID Decoder & Analyzer
Decode any UUID: version, variant, and for v1/v6/v7 the embedded timestamp, node MAC and clock sequence.
About UUID Decoder & Analyzer
UUID Decoder analyzes any UUID or GUID and reveals its version and variant — and for time-based versions (v1, v6, v7) it extracts the embedded timestamp, node and clock sequence. It is the quickest way to tell what kind of identifier you are looking at and when it was created.
How to use UUID Decoder & Analyzer
- 1Paste or type your input into the box above — a sample is pre-filled so you can try it instantly.
- 2Set any options on offer (mode, key, format) to match what you need.
- 3The result appears the moment you type — no button to press, no waiting.
- 4Click Copy to grab the output — UUID Decoder & Analyzer keeps everything on your device.
Why use UUID Decoder & Analyzer?
- ✓Extracting the creation time embedded in a UUIDv7 or UUIDv1 database key
- ✓Confirming whether IDs are random (v4) or time-ordered before choosing a primary-key strategy
- ✓Auditing whether v1 UUIDs in a dataset leak a real machine MAC address
- ✓100% free with no sign-up, no watermark and no usage limits
- ✓Runs entirely in your browser — your text and keys are never uploaded, stored or logged
- ✓Works offline once loaded, with instant results and one-click copy
Frequently asked questions
Can I get the timestamp out of a UUID?+
Yes — for versions 1, 6 and 7. UUIDv7 embeds a millisecond Unix timestamp and UUIDv1/v6 embed a 100-nanosecond Gregorian timestamp, all of which this tool converts to a readable UTC date. UUIDv4 is purely random and contains no decodable time.
How do I tell which UUID version I have?+
The version is the 13th hex digit (the first character of the third group). This decoder reads it for you and names the scheme — random, time-based, name-based MD5/SHA-1, or the newer RFC 9562 versions.
Is it free to use?+
Yes — completely free with no sign-up, no account and no usage limits. There is no paywall, so you can encode, decode and convert as much as you like.
Is my data private and secure?+
Yes. This tool runs entirely in your browser using client-side JavaScript — your input is never uploaded to a server, stored or logged. Once the page has loaded you can use it offline, which makes it safe for tokens, keys and confidential data.
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