UUID Generator
Generate up to 1,000 UUIDs at once: version 4 (random), version 7 (time-ordered) or version 1. Free and private: runs in your browser.
Choose a version and how many you need, then copy or download them.
Runs entirely in your browser. Nothing you paste is uploaded or stored.
Use cases
- Create test data and fixtures quickly.
- Start a new repository with sensible defaults.
- Fill layouts and prototypes with placeholder content.
Frequently asked questions
Should I use UUID v4 or v7 for database keys?
v7 starts with a timestamp, so new rows are inserted in order, which keeps database indexes compact. v4 is fully random and fine when ordering does not matter.
Is the UUID Generator free?
Yes. It is free with no sign-up, and it runs entirely in your browser, so your input is never uploaded or stored.
Is the output random every time?
Yes. Values are generated fresh on each run in your browser; nothing is stored, so copy or download what you need.
Related tools
Checking one snippet is a start. Scan your whole repository for free with CodeInspector.