UUID Generator
Generate random v4 UUIDs for databases, test data, API payloads, and development workflows. Everything happens locally in your browser.
Generate unique IDs without leaving the page
UUIDs are useful when you need stable identifiers for records, mock data, API examples, event IDs, or local prototypes.
This tool uses the browser crypto API where available and falls back to a standard random v4 pattern for older environments.
Frequently Asked Questions
What is a UUID?
A UUID is a 128-bit identifier commonly used to create unique IDs across systems without coordinating with a central server.
Are these UUIDs generated locally?
Yes. The browser crypto API creates the random values on your device. Nothing is sent to a server.
What version does this generate?
This tool generates v4 UUIDs, the random UUID format most commonly used for app records and test data.
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