Format Validator
Validate Email, Phone, URL, and IP address formats and find invalid rows.
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How to Use
1
Paste Your Data List
Paste the list of data you want to verify (E-mail, URL, IP address, etc.) into the 'Input Data' field, one data per line.
2
Choose Verification Type
Select what format your data should be in from the 'Validate For' drop-down menu. For example; If you are going to check e-mail addresses, select the 'Email Address' option.
3
Debug
Press the 'Validate' button. The tool will scan your list in seconds; It will separate incorrect formats and valid data and report it to you on the result screen.
FAQ
Does this tool save my data?
No. Format Validator works entirely browser-based. Sensitive data you enter, such as e-mail or phone number, is not sent to any server, and your privacy is 100% protected.
What exactly is the "Date (ISO 8601)" format?
This is the international standard date format (Ex: 2026-01-04). Our tool checks that the dates comply with this standard and actual calendar days.
Is there a bulk verification limit?
In web-based use, you can process thousands of rows simultaneously; However, for your browser performance, it is recommended to validate data in blocks of 5,000 rows.
Does it automatically delete incorrect lines?
The tool flags the erroneous rows and allows you to get rid of the erroneous data by allowing you to copy only the "Valid" ones in the result screen.