UUID Generator

UUIDs (universally unique identifiers) are used as database keys, session tokens and object identifiers. This tool generates RFC 4122-compliant version-4 UUIDs in bulk, instantly.

How to Use This Tool

  1. Set how many UUIDs you need (up to 100 at a time).
  2. Choose a format: standard, no hyphens, or uppercase.
  3. Click Generate UUIDs and copy the list.

Why Use ToolVigo's UUID Generator

  • Generates cryptographically random version-4 UUIDs using the browser's random number generator.
  • Bulk generation up to 100 at once.
  • Multiple output formats to match different systems' conventions.

Privacy & Security

This tool runs entirely in your browser. Your input is never uploaded to ToolVigo's servers, and nothing is stored once you leave the page.

Frequently Asked Questions

How unlikely is a UUID collision?

Version-4 UUIDs have 122 random bits, making the probability of two generated UUIDs colliding astronomically small for virtually any practical use case.

Are these UUIDs cryptographically secure?

This tool uses JavaScript's Math.random(), which is suitable for general-purpose unique identifiers but not for security-critical secrets like session tokens where a cryptographic RNG is recommended.

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