UUID Generator
Generate random UUIDs (v4) in bulk, with multiple formatting options.
Runs entirely in your browser — your files are never uploaded to a server.
How It Works
1. Choose Your File
Drag & drop or select the file you want to work with.
2. Processed in Your Browser
Everything happens locally on your device — your file is never uploaded anywhere.
3. Download Your Result
Get your finished file instantly, ready to save or share.
Frequently Asked Questions
What type of UUID does this generate?
Version 4 (random) UUIDs, generated using your browser's built-in cryptographically secure random number generator.
How many can I generate at once?
Up to 1,000 in a single batch.
What format options are available?
Standard lowercase with hyphens, uppercase, no hyphens, or wrapped in braces {} — common variations needed across different programming languages and databases.
Are these UUIDs guaranteed to be unique?
For all practical purposes, yes — UUID v4 has such an enormous number of possible values that collisions are effectively impossible.