UUID generator

Browser

Generate random v4 UUIDs, one at a time or in bulk.

Runs in your browser. Your files are not uploaded.

Options

How many

UPPERCASE

No hyphens

Generated with your browser’s secure random source (crypto.randomUUID). Nothing is sent anywhere.

9a9abcfe-9e0b-4419-acf1-5a99691a0eac

a845d538-05e0-4571-8b30-8aaf4f05d0f1

23cbd725-1d9a-4197-85df-a45010a3021a

64009887-a0f7-4c54-9218-4963aceb09f3

91bfd3aa-13b8-40fa-94a2-f5021b487d72

Format, validate and minify JSON.

Encode text or files to Base64, or decode it back.

Get the MD5, SHA-1, SHA-256 or SHA-512 hash of text or a file.

Percent-encode text for a URL, or decode it back.