UUID Generator
Generate universally unique identifiers (UUID v4) instantly. Supports bulk generation of multiple UUIDs, uppercase/lowercase formatting, and one-click copy.
1.
6584ccc7-a284-413c-a376-c9bf6540fcd5使い方
- Click Generate to create a UUID v4.
- Optionally generate multiple UUIDs in bulk.
- Copy the UUIDs and use them as identifiers in your app, database, or logs.
よくある質問
What is UUID v4?
UUID v4 is a randomly generated 128-bit identifier commonly used for unique IDs.
Are UUIDs guaranteed to be unique?
Practically yes for most applications. Collisions are astronomically unlikely when generated correctly.
Can I generate UUIDs offline?
Yes. This tool runs in your browser and works without sending data to a server.