UUID Generator
Generate RFC 4122 version 4 UUIDs using the browser’s secure random API.
Your input stays in your browser. Nothing is uploaded.
About this tool
Version 4 UUIDs are random. This tool uses crypto.randomUUID or crypto.getRandomValues. It does not contact a server.
How it works
Choose how many IDs you need, generate, then copy. Generate again for a new set.
UUIDv4 from CSPRNG
Examples
One ID
A typical result looks like 550e8400-e29b-41d4-a716-446655440000.
FAQ
Are these unique?
Collisions are astronomically unlikely. They are not sequential or sortable by time.
UUID v1?
This generator is v4 (random) only.