UUID Generator
Generate one or many cryptographically secure UUID v4 identifiers in your browser.
Why use this uuid generator?
Generate a UUID version 4 when you need a random identifier for test data, database records, API objects or development work.
Example
Click Generate new UUID to create a value such as 550e8400-e29b-41d4-a716-446655440000.
Important note
UUID v4 values are designed to have an extremely low collision probability, but they are identifiers rather than passwords.
How to use it
Start with the inputs shown above, review the assumptions or options, then generate the result. Where the tool creates a file, keep the original until you have opened and checked the downloaded output.
Frequently asked questions
Is UUID Generator free?
Yes. The core tool is free to use without creating an account.
Do I need an account to use UUID Generator?
No. You can use the core Toolbox workflow without signing up.
Does UUID Generator work on mobile?
Yes. Toolbox is designed for modern mobile and desktop browsers, although complex file workflows can be easier on a larger screen.