What is UUID Validator?

UUID Validator is a tool for checking multiple UUID strings at once. Enter one UUID per line, and the tool shows whether each entry is valid and which version it belongs to.

It is useful for data review, API testing, log inspection, and other workflows that handle UUID values in bulk.

How to Use

1. Enter one UUID per line.
2. Click Validate.
3. Review validity and version in the result table.

What You Can Check

• UUID
• Validity
• Version

Valid UUIDs show their version number, while invalid entries are marked as invalid.

Use Cases

• Reviewing UUIDs in database exports or CSV data
• Checking UUID fields in API requests or responses
• Inspecting UUIDs in logs or migration data

Input and Output Example

123e4567-e89b-12d3-a456-426614174000
f47ac10b-58cc-4372-a567-0e02b2c3d479
invalid-uuid

With input like this, the result can look like:

123e4567-e89b-12d3-a456-426614174000 | Valid | v1
f47ac10b-58cc-4372-a567-0e02b2c3d479 | Valid | v4
invalid-uuid | Invalid | -

Things to Keep in Mind

• Validation is performed line by line
• Blank lines or non-UUID strings are treated as invalid entries
• The tool checks format validity, not whether a UUID is actually unique in your system