UUID Generator
Generate secure UUID v4 identifiers in your browser.
UUIDs are generated in your browser. Nothing is sent anywhere.
Tool
Generate UUIDs
Version 4 (random) UUIDs, generated locally in your browser.
Why Dockzio?
Simple tools that respect your time and your privacy.
Free and instant
No subscriptions, no paywalls, no waiting.
No sign-up required
Open a tool and get to work immediately.
Private by design
Processing happens locally in your browser whenever possible.
Beautifully built
Clean, fast interfaces designed for everyday productivity.
About the UUID generator
Generate one or many version 4 (random) UUIDs for use as database keys, request IDs, or test fixtures. Choose how many to create and whether to output upper or lower case.
How it works
Each UUID uses your browser’s cryptographically secure random number generator (crypto.randomUUID or crypto.getRandomValues) with the version and variant bits set per RFC 4122 — the same approach used by most programming-language UUID libraries.
Why version 4?
Version 4 UUIDs are fully random (aside from a few fixed bits), so they need no coordination between machines and are statistically unique for practical purposes.
Limits
Generate between 1 and 100 UUIDs per batch. Click Generate again for a fresh batch — changing settings does not regenerate automatically, so a batch you have already copied is never lost.
Privacy first
UUIDs are generated locally in your browser. Nothing is sent to a Dockzio server.
FAQ
Quick answers to common questions.