UUID Generator
Generate UUID v4 values in bulk directly in your browser.
UUID options
Generate one or many unique UUID v4 IDs with browser crypto.
Free UUID v4 generator
Generate identifiers for development, testing, seed data, and database records without sending anything to a server.
How to Use UUID Generator (Step-by-Step)
Choose how many UUIDs you need.
Generate the UUID list.
Copy or download the values for your project.
Applications
Common Use Cases
- Create IDs for database rows, fixtures, logs, or API examples.
- Generate multiple UUIDs at once for development and testing.
- Copy clean UUID v4 values without installing a tool.
Privacy Guarantee
Zero Server Uploads
Unlike traditional online converters that upload your confidential documents to external cloud servers, MultiToolX executes computations in your browser runtime via HTML5 Canvas, Web Crypto, and WebAssembly.
Your data never leaves your device and cannot be viewed, stored, or harvested by anyone.
UUID v4 Guide: How Cryptographically Random Identifiers Work
Understand the structure of UUID v4 (128-bit RFC 4122), collision probability, and how to generate valid UUIDs in bulk without server round-trips.
FAQ
Frequently Asked Questions
What version of UUID is generated?
The tool generates UUID v4 values, which are random UUIDs.
Are UUIDs guaranteed unique?
UUID v4 collisions are extremely unlikely, but uniqueness still depends on proper random generation.
Can I generate many at once?
Yes. Use the quantity setting to create a batch.
Embed the UUID Generator on Your Website or Blog
Enhance your articles and give your visitors a fast, 100% free browser utility with zero installation. Copy our responsive iframe code with one click.