Validators
UUID Validator
Validate UUID and GUID values and check UUID versions directly in your browser.
Tool
Validate UUID and GUID values and check UUID versions directly in your browser.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this free UUID Validator to check whether a UUID or GUID value is formatted correctly. It can help detect invalid characters, missing hyphens, incorrect segment lengths, unsupported versions, and malformed UUID strings. The check runs directly in your browser, so your values do not need to be uploaded.
Examples
- 550e8400-e29b-41d4-a716-446655440000
- 6f9619ff-8b86-d011-b42d-00cf4fc964ff
Frequently Asked Questions
What does this UUID validator check?
It checks whether a UUID or GUID has a valid structure, including hexadecimal characters, segment lengths, hyphens, version, and variant where possible.
Are UUID and GUID the same?
In most practical use cases, GUID and UUID refer to the same 128-bit identifier format. This tool can check both common names.
Is my UUID uploaded?
No. The validation is designed to run locally in your browser.