UUID Generator

Overview

• Generates multiple random UUIDs (Universally Unique Identifiers) at once.
• The generated values are UUID v4 (based purely on randomness), widely used wherever a non-colliding identifier is needed, such as database primary keys or API request IDs.
• You can toggle uppercase and whether hyphens are included, so the output can match the naming conventions of the system you're using it in.

Usage

1. Set the count (1-50), whether to use uppercase, and whether to include hyphens, as needed.
2. Click the "Generate" button.
3. UUIDs (v4) for the specified count are generated and displayed one per line. Use "Copy" to copy all of them.

Example

Count: 3 / Uppercase: OFF / Include hyphens: ON

1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed
3fa85f64-5717-4562-b3fc-2c963f66afa6
9c858901-8a57-4791-81fe-4c455b099bc9

Use Cases

• Pre-issuing multiple UUIDs at once for use as database primary keys
• Quickly generating the exact number of unique identifiers needed for test or mock data
• Issuing a UUID on the spot for use as an API request trace ID or idempotency key

FAQ

Notes

• The generated result exists only on the page and is lost on reload, so copy any values you need right away.
• UUID v4 is designed to be statistically collision-free, but it is not intended as a substitute for a cryptographic key or password.
• Up to 50 can be generated at once. Generate multiple times if you need more.