About this tool
Need an ID for a database row, a test fixture or an API call? Generate version-4 UUIDs with the browser’s secure random source. Choose how many you need and copy them in one go.
How to use UUID Generator
- Enter how many UUIDs you need.
- Select Generate new if you want a fresh set.
- Copy the list.
Frequently asked questions
Which UUID version is this?
Version 4, which is random. It is the usual choice for new IDs that do not need to encode a timestamp or namespace.
Are the UUIDs unique?
They are generated with crypto.randomUUID, which uses a cryptographically strong random source. Collisions are extremely unlikely for normal use.
How many can I create at once?
Up to 100. Generate again if you need more.