UUID Generator
④ API / Debug
What it is: A UUID is a practically-never-repeating unique identifier, often used as a database primary key or request ID.
When to use: When you need a globally unique ID without relying on database auto-increment.
Everything runs locally in your browser — nothing is uploaded.
FAQ
Can UUID v4 collide?
v4 is generated from 122 random bits, so the chance of a collision is vanishingly small (negligible in practice). This tool uses the browser crypto secure random source.