UUID Generator
Generate unique v4 UUIDs instantly.
How to use
Set how many UUIDs you want (1–100) and click Generate. Copy an individual UUID or use 'Copy All' to grab the full list at once, one per line.
- Enter your input in the text area provided.
- Adjust any settings or options if available.
- The results will be generated automatically or upon clicking the action button.
- Copy the result to your clipboard using the copy button.
About UUID Generator
UUID Generator creates version 4 (random) UUIDs — 128-bit identifiers commonly used as unique keys in databases and distributed systems, where collisions between independently generated IDs need to be effectively impossible.
What UUIDs Are Used For
A UUID's job is to be unique without any central coordination — no database or server needs to hand them out in sequence, since the odds of two independently generated v4 UUIDs colliding are astronomically small. That makes them well suited to a few recurring situations: primary keys in a database where you want to generate the ID client-side or across multiple services without a shared counter, identifiers in a distributed system where different machines are creating records independently, and one-off tokens or reference codes where you just need something unique, not something sequential or predictable.
Common Use Cases
- Generating a primary key or unique identifier for a new database record.
- Creating placeholder IDs for testing or seed data.
- Generating a batch of unique tokens or reference codes at once.
Frequently Asked Questions
What does 'v4' mean?
UUID version 4 means the ID is generated primarily from random numbers, as opposed to other UUID versions that incorporate timestamps or hardware identifiers. It's the most common version for general-purpose unique IDs.