UUID Generator
Input
Choose how many UUID v4 values to generate. Results are created locally in your browser.
Random UUID version 4 (RFC 9562 / RFC 4122), lowercase with hyphens.
Output
Generated in your browser with the uuid package.
All processing happens in your browser — your files are never uploaded to a server.
About this Tool
The UUID Generator tool provisions random v4 UUID (Universally Unique Identifier) arrays compliance with the RFC 4122 standard. Operating entirely in the browser memory using cryptographic random APIs, it keeps variables 100% random and safe.
100% Secure Local Processing Active
This tool runs entirely on your device via WebAssembly and browser Canvas. No files are ever sent to any remote server, ensuring complete data security.
How to Use
Specify the quantity of UUID variables you wish to generate.
Review the instantly generated list of unique random v4 UUID strings.
Click the copy-all button or download the variables as a text file.
Core Scenarios & Use Cases
Database Primary Keys Seeding
Generate robust lists of unique identifiers to mock primary key columns in testing tables.
User Sessions & Tokens
Provision random identifiers to securely map user tokens or log transactions.
Unique File Names System
Create high-entropy unique strings to rename uploaded user assets to prevent name collisions.
Frequently Asked Questions
Yes, we query the browser's native API (crypto.getRandomValues) to ensure high-entropy randomness.
No, you can generate thousands of identifiers in milliseconds without server caps.
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