UUID Generator
Generate RFC 4122 compliant UUIDs (v4) using cryptographically secure randomness.
UUIDGUIDunique IDidentifierv4
0 UUIDs generated
1
UUID v4 Format
8 chars
4 chars
4xxx
version
yxxx
variant
12 chars
What is a UUID?
A 128-bit identifier designed to be globally unique.
Use cases
DB keys, correlation IDs, distributed systems.
v4
Random-based UUID, generated with secure randomness.
Frequently Asked Questions
Quick answers about usage, privacy, and best practices.
Privacy: Everything runs locally in your browser. No data is sent to a server.
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Privacy First: This tool runs entirely in your browser. No data is sent to any server.