UUID Generator

Generate UUID version 4 identifiers for databases, APIs, tests, and mocks. Created locally in your browser.

How to use this tool

1. Choose how many UUIDs you need (if the control exists).
2. Click Generate.
3. 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.