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Code & Data Tool
UUID Validator
Validate UUID v1, v3, v4, and v5 style formats where possible.
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About this tool
What is UUID Validator?
UUID Validator checks whether a string looks like a valid UUID and, where possible, whether it matches versions 1, 3, 4 or 5.
Useful when you need to
- Check an ID from a database
- Confirm a generated ID has the right format
- Learn UUID structure
How to use
How to use UUID Validator
01 02 Validate
Run the check.
03 Read the version
See the version result where it can be detected.
04 Fix
Correct typos if it fails.
Tips
Get better results
- A UUID has five hyphen-separated groups: 8-4-4-4-12 hex characters.
- Format validity does not prove the ID exists anywhere.
FAQ
Frequently asked questions
Which versions are supported?
Versions 1, 3, 4 and 5 formats.
Is it private?
Yes.
Does it generate UUIDs?
No. Use the UUID Generator for that.
More practical guides · File handling and privacy · Report an incorrect instruction