Generate UUID version 4 identifiers for databases, APIs, tests, and mocks. Created locally in your browser.
How to use this tool
- Choose how many UUIDs you need (if the control exists).
- Click Generate.
- Copy UUIDs into your code or spreadsheet—avoid sharing secrets in public chats.
Tips
- UUID v4 is random; collisions are astronomically unlikely for normal app volumes.
- Prefer server-side generation for security-sensitive systems—this page is great for dev and quick tests.
Related tools
- Hash generator — checksums over text
- JSON formatter — paste UUIDs into JSON samples
- Password generator — human-facing secrets (different use case)
FAQ
Are UUIDs secret?
No. Treat them as identifiers, not passwords—unless your system explicitly uses them as unguessable tokens with other controls.
Can I generate UUID v1 or v7?
This tool focuses on v4 random UUIDs—other versions need different libraries or services.
Do you log generated UUIDs?
No server round-trip for generation—IDs are produced in your browser session.
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