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UUID / GUID Generator

Generate secure UUIDs (v4) instantly in your browser. Perfect for database seeding.

Ready to use Runs locally in your browser
How this tool works

Generate secure UUIDs (v4) instantly in your browser. Perfect for database seeding.

  1. Enter the number of UUIDs you need (1 to 100,000).
  2. Click Generate UUIDs to create cryptographically secure v4 identifiers.
  3. Review the generated UUIDs in the output editor.
  4. Copy all UUIDs to your clipboard or download them as a text file.
Input example 
{config.exampleBefore}
Output example 
{config.exampleAfter}
UUID Generator
Processed entirely in your browser using crypto.randomUUID().
Ctrl+Enter Generate
Configuration UUID v4
Generated UUIDs Read only output
Ready Browser only
Select the number of UUIDs you need and click Generate.

This tool runs 100% in your browser; your data never leaves your device. Privacy details

How to Use the UUID / GUID Generator

  1. Enter the number of UUIDs you need (1 to 100,000).
  2. Click Generate UUIDs to create cryptographically secure v4 identifiers.
  3. Review the generated UUIDs in the output editor.
  4. Copy all UUIDs to your clipboard or download them as a text file.

Common Use Cases

  • Generating primary keys for distributed database systems.
  • Creating unique session identifiers for web users.
  • Naming uploaded files to prevent naming collisions.
  • Generating unique transaction IDs for e-commerce platforms.
  • Seeding databases with mock data during application testing.

Frequently Asked Questions

What is the chance of a UUID collision?

The probability of generating two identical Version 4 UUIDs is virtually zero, making them safe for distributed systems.

What version of UUID does this tool generate?

This tool generates Version 4 UUIDs, which are based entirely on random numbers.

Are the UUIDs generated securely?

Yes, we use cryptographically secure pseudorandom number generators provided by modern web browsers.

Can I generate multiple UUIDs at once?

Yes, the tool allows you to specify the number of UUIDs you want to generate in bulk.

Do I need an internet connection to generate UUIDs?

No, once the page is loaded, the generation happens locally, so it works offline.

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