UUID generator
Generate one or many UUID v4 identifiers using cryptographic randomness.
Processed locally. No file uploads.
How to use
- Set a count from 1 to 1000
- Generate your UUIDs
- Copy the list or download a text file
What you can do
- Generate one or many UUID v4 identifiers using cryptographic randomness.
- Cryptography or QR encoding runs on your device.
Useful answers
Which UUID version is generated?
Version 4, using crypto.randomUUID(). These are random identifiers, not passwords or authorization tokens.
What are the limits?
QR content is limited to 1500 bytes and may require a larger output size. Password length: 8–128 characters. UUID batches: 1–1000. Modern browsers with Web Crypto are required.