Browser-only · no sign-up
UUID Bulk Generator
Generate a clean, copy-ready batch of RFC-compliant v4 or v7 UUIDs instantly. Nothing leaves your device.
Build your batch
Choose a version and count, then generate. Everything happens in this tab.
Ready to copy.
Three quick steps
How it works
v4 or v7
Use v4 for random IDs or v7 when natural time ordering helps database indexes.
1 to 1,000
Choose the exact batch size. Invalid entries are safely clamped to the supported range.
One clean list
Every UUID is newline-separated and ready for seeds, fixtures, migrations or test data.
Built for developer flow
Why use this generator
Standards, not guesswork
v4 follows RFC 4122 and v7 follows RFC 9562, including correct version and variant bits.
Zero network round-trips
IDs are generated locally with the browser's cryptographic random source. Your data stays put.
Made for bulk work
Monospace output, uppercase GUID style and one-button copying keep repetitive tasks short.
FAQ
What is the difference between UUID v4 and v7?
v4 is entirely random. v7 starts with a millisecond timestamp followed by random bits, so newly generated IDs generally sort chronologically — useful for database keys.
Are these UUIDs cryptographically secure?
Random bits come from crypto.getRandomValues(). UUIDs are identifiers, not secrets, but the source is the browser's secure random generator.
Is anything uploaded or stored?
No. The page has no API call, account or database. Generation and copying happen entirely in your browser.
Can I generate uppercase GUID-style values?
Yes. Enable Uppercase before generating. The structure and separators remain unchanged; only A–F characters become capitals.