What is UUID Validator?

UUID Validator is a tool for validating multiple UUIDs at once and checking their versions. Enter one UUID per line to review the results in a table and export them as CSV.

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.
4. Sort the result table by validity or version when you want to compare entries side by side. You can also export the results as CSV.

What You Can Do

• Check whether each UUID is valid
• Detect the UUID version
• Export the results as CSV

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 and trailing blank lines are ignored.
• Non-UUID strings are treated as invalid entries.
• The tool checks format validity, not whether a UUID is actually unique in your system.