Prepare a new set of identification codes for data and files.
Enable JavaScript for interactive processing. You can read the instructions, limits, and FAQs below without it. Files are processed only in your browser.
UUID GeneratorUser Guide
Use the browser's native secure randomization function to generate UUID v4 in batches locally, select the case and then copy or export the list.
How to use
Set the number and case to be generated.
Generate UUID v4 and check the checklist.
Copy the complete list or export TXT.
Formats and limits
1 to 1,000 at a time, must be a new HTTPS browser that supports crypto.randomUUID.
A UUID is an identification number, not a password, source verification, or absolute collision-free guarantee.
Output
TXT list of UUID v4, one per line.
Frequently asked questions
Will the UUID be generated or logged by the server?
No. Uses the native randomization API of the current device's browser, without requesting an identifier from the server or saving a generated list.
The file name and content are only processed in your browser and are not transmitted to the server. The original file will not be overwritten. Please export the required results before leaving the tool.