UUID Generator
Generate random version 4 UUIDs (GUIDs) instantly, one or many at a time.
Your privacy is safe, this tool runs entirely in your browser. Nothing you enter is uploaded to or stored on our servers.
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How to use UUID Generator
- 1Choose how many UUIDs you want to generate.
- 2Click “Generate”.
- 3Copy a single UUID, or copy all of them at once.
- 4Generate again any time for fresh values.
About the UUID Generator
This free UUID generator creates random version 4 UUIDs (also known as GUIDs) , 128-bit identifiers used by developers to uniquely label database records, files, sessions, API keys and more, without any central coordination.
Each UUID is produced with your browser’s secure random generator, making accidental duplicates practically impossible. Generate one or hundreds at a time and copy them instantly. Nothing is stored or transmitted.
Frequently asked questions
How do I generate a UUID?
Choose how many you want, click “Generate”, and the UUIDs appear instantly. Copy a single value, or copy them all at once.
What is a UUID?
A UUID (Universally Unique Identifier), also called a GUID, is a 128-bit value used to uniquely identify information, such as database records, files or API keys.
What is a version 4 (v4) UUID?
A v4 UUID is generated from random numbers rather than from time or hardware. It is the most common type because it needs no central coordination. This tool creates v4 UUIDs.
Are these UUIDs truly random and unique?
Yes. They are generated with your browser’s cryptographically secure random generator, so the chance of two ever colliding is astronomically small, effectively unique.
Can I generate UUIDs in bulk?
Yes. Set the count and generate many at once, then copy them all, handy for seeding databases or test data.
Are the UUIDs sent to a server?
No. They are generated locally in your browser and never leave your device. It is free with no sign-up.