Generate cryptographically random UUID (v4) values one at a time or in bulk. Copy a single ID or the whole list with one click — perfect for keys, records and test data.
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Generate cryptographically random UUID (v4) values one at a time or in bulk. Copy a single ID or the whole list with one click — perfect for keys, records and test data.
Whether you're a professional or just need a quick result, the UUID Generator gives you a fast, reliable developer tool that works instantly in your browser. There's no software to install and nothing to sign up for — open the page, get your result and move on. Because everything runs on your own device, it's private by default and available whenever you need it.
The UUID Generator is part of TechToolsCenter — a free, privacy-first collection of 126+ online tools. Everything runs 100% in your browser, so your data stays private and results are instant.
Input
Output
Formats
Add your code, data or string. It's parsed and processed entirely in your browser.
Set the format, encoding or rules for the task. Output updates instantly as you change them.
Review the result, catch errors early, and copy exactly what you need.
Copy the output or download it. Nothing you paste ever touches a server.
Tips
Common mistakes
Best practices
Input
Text — e.g. uuid
Output
Text, generated instantly in your browser
Yes. They are generated using the browser's cryptographically secure random API following the UUID v4 standard.
It's free, private and works instantly — no sign-up required.
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