Does this UUID generator upload anything?
No. UUIDs are generated locally in your browser and are not uploaded to a server.
UUIDs are generated locally in your browser. Nothing is uploaded.
UUID Generator
Create one or many random v4 UUIDs instantly for test data, database records, API examples, fixtures, and development workflows.
UUIDs are generated locally in your browser. Nothing is uploaded.
Generate random UUIDs
Random v4 UUIDs generated on your device
Use this UUID generator when you need unique-looking identifiers for mock data, prototypes, API requests, database seed files, logs, or documentation examples. Generate up to 50 UUIDs at once and copy a single value or the full list.
The tool uses crypto.randomUUID in your browser. UUIDs are created locally on your device, so there is no upload, no account, and no server-side generation step.
How to use this tool
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Choose how many UUIDs
Enter a count from 1 to 50 depending on how many identifiers you need.
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Pick lowercase or uppercase
Leave the default lowercase format or enable uppercase output for systems that prefer capital letters.
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Copy one or all
Copy a single UUID from the list or use Copy all to move every generated UUID at once.
FAQ
Which UUID version does this tool generate?
It generates random version 4 UUIDs using the browser crypto.randomUUID API.
Can I generate multiple UUIDs at once?
Yes. You can generate from 1 to 50 UUIDs in one batch.
Can I make UUIDs uppercase?
Yes. Turn on the uppercase option to convert the generated UUIDs to uppercase before copying.