No uploads · runs in browser
UUID Generator
Generate UUID v4 identifiers, with or without hyphens, up to 100 at a time.
Favorite it to find it fast on home
When to use it
Generate 10 UUIDs for database primary keys
Strip hyphens for filenames
Make identifiers for test fixtures
How to use it
1Step 1Fill in Count
2Step 2Change a value and the result updates instantly
3Step 3Save or copy the result with Generate
If the result looks off
The result looks wrong
Check the units and the baseline first. Changing a value updates the result instantly.
I want the starting values back
Press reset to return to the initial state.
Frequently asked questions
Can they collide?
UUID v4 carries 122 random bits, so collisions are practically impossible.
Could two ever be the same?
UUID v4 carries 122 random bits. Even at a trillion generated values the collision chance stays negligible.