UUID Generator

Generate RFC 4122 v1, v4, or v7 universally unique identifiers.

Generated UUIDs
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Pure Client-Side Local Memory Processing · Zero Data Upload

Usage Guide

  • 1. Select your preferred UUID version (such as v4, timestamp-ordered v7, or Short ID).
  • 2. Choose the batch quantity and format options (hyphens, casing, or braces).
  • 3. Instantly generate and copy individual IDs or export batch lists as text files.

Security & Privacy Guarantee

  • 1. Powered by Web Crypto API for cryptographically secure pseudo-random generation (CSPRNG).
  • 2. Supports batch generation of up to 10,000 unique identifiers in a single click.
  • 3. Local computation; generated identifiers are not uploaded to any cloud server.

Frequently Asked Questions

Q: What is the key difference between UUID v4 and v7?
A: UUID v4 is entirely random; UUID v7 combines a millisecond timestamp with random bits for time-ordered database indexing.
Q: Are these generated UUIDs cryptographically secure and collision-resistant?
A: Yes. It uses the browser crypto.getRandomValues API to ensure production-grade collision resistance.