UUID Generator
Generate random UUIDs (v4). Free, no signup, runs in your browser.
How It Works
Choose how many UUIDs you need and click Generate. Each UUID is a version 4 random identifier generated using your browser's cryptographic API. Click Copy to copy all UUIDs to your clipboard.
What Is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit identifier in the format xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx. Version 4 UUIDs are randomly generated and have an astronomically low probability of collision, making them safe for database keys, session tokens, and distributed systems.