Are the UUIDs guaranteed unique?

They're generated with crypto.randomUUID(), which produces cryptographically random v4 UUIDs with a vanishingly small collision chance.

Does UUID Generator upload my files to a server?

No. UUID Generator runs entirely in your browser using on-device processing, your files never leave your device.

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Generate random UUIDs and GUIDs.

See it in action

ClickUUID

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1265175100

File Converter

Convert data files between CSV, JSON and TSV.

JSON Formatter

Format, validate and minify JSON.

Base64 Converter

Encode or decode text and files as Base64.

URL Encoder/Decoder

Encode or decode URLs and query strings.

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Calculators

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1265175100