{ } How to use

Paste a GUID or UUID in any punctuation.
Choose the format you want, then select Process.

{ } How it works

GUID Formatter works on the text you provide. Adjust the options, then select Process ▸ and it runs entirely in your browser — nothing is uploaded to a server — then shows the result in the Output panel.

Inputs

GUID / UUID — paste or type your input in the left panel (use Sample for an example)
Format — choose one — lowercase-hyphens, UPPERCASE-HYPHENS, no hyphens, {braces}, (parens), urn:uuid: (default: lowercase-hyphens)

Output

TXT text — copy or download it from the Output panel.

{ } Common uses

Match the exact form a database, a registry or an API expects.
Normalise identifiers from two systems before comparing them.
Strip or add hyphens and braces without editing by hand.

{ } Limitations

This reformats; it does not validate. Any 32 hexadecimal digits are accepted, so it will happily format something that is not a real UUID, and it does not check the version or variant bits.
All non-hexadecimal characters are stripped before formatting, so braces, hyphens, a urn:uuid: prefix and stray spaces are all tolerated — but the digits left over must number exactly 32.

{ } FAQ

Is my data uploaded to a server?

No. Everything runs locally in your browser — your files never leave your device.

Can I process more than one file at once?

This tool works on one input at a time.

Is this tool free?

Yes — it’s completely free and needs no sign-up.

Does the format change the identifier?

No. Hyphens, braces and case are presentation only: the same 32 digits in any of these forms are the same UUID.