UUID Generator

Create universally unique identifiers for databases, sessions and records. Generate one UUID or hundreds at once.

UUIDs are generated locally in your browser using a secure random source.

How to use UUID Generator

  1. Choose how many UUIDs you need.
  2. Optionally switch to uppercase or remove hyphens.
  3. Press “Generate”.
  4. Copy the IDs or download them as a file.

About this tool

UUID v4 is the standard way to create unique identifiers without a central authority. The generator uses your browser’s cryptographically secure random number generator, so every ID is effectively unique.

Frequently asked questions

Can two generated UUIDs collide?
In practice, no. UUID v4 has 122 random bits, so the chance of a collision is astronomically small — even across billions of IDs.
Why would I remove the hyphens?
Some systems store UUIDs without hyphens or in uppercase. The options let you match whatever format your database expects.

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