About
List Validator Pro is a powerful and completely local utility that allows you to validate and filter large lists of data in seconds.It supports many types of data (email, web addresses, bank accounts, credit card numbers and others), works at lightning speed and does not transmit your data to the Internet.
Manually checking lists of hundreds or thousands of email addresses, URLs, or numbers is painfully time-consuming and error-prone.Online tools are not secure for sensitive data, have capacity limits, and often require payment for speed.List Validator Pro solves all these problems, running entirely on your Mac.
Features:
• Built-in validators for different data types:
• Email addresses (syntax and format checking).
• URLs/web addresses.
• IBAN (international bank account numbers, including checksum).
• ISBN (book numbers with check digit verification).
• UUIDs (universally unique identifiers).
• IP addresses (IPv4 and IPv6).
• Credit card numbers (checked by the Luna algorithm, without determining the payment system).
• Lightning speed and work without the Internet:
• Processes thousands of records per second because all the work happens locally on your Mac.
• There are no delays, limits on the number of requests or the need to wait for upload to the server.
Simple workflow:
• Enter: Drag a file into the application window, select it through the Finder, or paste the list directly into the built-in editor (with line numbers).
• Validation: The application instantly divides all records into two lists: Valid (correct) and Invalid (incorrect).
• View and filter: Easily view both lists to see which rows contain errors.
• Export: Save your cleaned results in your preferred format: CSV, TSV, JSON, Plain Text, or PDF.Ideal for importing into spreadsheets, databases or reports.
Everything happens locally on your computer.Your data never leaves your device, nothing is downloaded to servers or saved in logs.This is especially important for checking confidential lists (card numbers, IBAN, personal email addresses).