UUID Generator
Generate UUID v4 values in bulk.
Developer Utilities
OpenFree UUID generator for developers
Create UUIDs instantly when you need identifiers for fixtures, mock records, database tests, logs, temporary data, or application development workflows.
IDs for development and testing
UUIDs are commonly used for database records, fixtures, mock data, logs, and temporary identifiers during development.
A generator saves time when you need several IDs quickly without wiring up a script or database helper.
Practical UUID usage
Use generated UUIDs for non-secret identifiers. Do not use UUIDs as passwords, API keys, or proof of authorization.
For systems with strict ID requirements, confirm the version and formatting expected by your application.
Frequently asked questions
What can I use UUIDs for?
UUIDs are useful for test records, mock data, database identifiers, logs, and temporary development fixtures.
Are UUIDs secret?
No. UUIDs are identifiers, not secrets. Do not use them as passwords or authentication tokens.