Tool

UUID Generator

Generate UUID v4 values for tests and fixtures.

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When to use it

  • Use it for fixture ids, mock data, and temporary identifiers.
  • It is handy when you need many unique ids quickly.
  • You can also download large batches for test datasets.

Types and modes

  • This tool generates UUID v4 values.
  • Version 4 UUIDs are random-based and common in app development.
  • Counts above 50 switch to download-only output.

What to check

  • UUIDs are for identification, not ordering.
  • Large batches are easier to handle through download.
  • Some systems require a specific UUID version, so check your requirements.

FAQ

Why are large batches not shown on screen?

The UI limits direct output to keep the page readable and responsive.

Can UUIDs collide?

In practice the chance is extremely low, but not mathematically zero.

Choose how many UUIDs to generate. Downloads support up to 100,000.
Output
Results will appear here.