Filter List Lines

Filter text lines online with precision using the Filter List Lines tool. Search through lists, extract specific entries, and remove unwanted content based on text patterns, regex, or exact matches. Perfect for cleaning data, finding specific items in large lists, or excluding unwanted entries from your text files.

How to Use:

1. Input Your List
   • Paste your text lines into the input box to see a live preview on the right showing your filtered content
   • Use the Import button to load text files directly from your computer
   • The tool comes with sample data showing different apple products for demonstration
2. Set Filter Criteria
   • Enter your search text in the “Filter text” field to define what you’re looking for
   • Case sensitive: Enable to match exact capitalization in your search terms
   • Whole words only: Toggle to match complete words instead of partial matches within larger words
   • Trim whitespace: Remove extra spaces from line beginnings and endings for cleaner results
3. Select Filter Mode
   • Contains: Find lines with your text anywhere within the line content
   • Starts with: Match lines beginning with your specified text or phrase
   • Ends with: Find lines ending with your specified text or phrase
   • Regex: Use advanced pattern matching with regular expressions for complex searches
   • Exclude: Remove lines containing your text from the results, showing everything else
4. Review and Export Results
   • Watch the live preview update automatically as you type in the filter field
   • Check the match counter showing “Lines Matched: X / Y” below the output box
   • Use the Copy button to grab the filtered results for pasting elsewhere
   • Click Export to download filtered lines as a text file for future use

As you adjust settings, the output updates automatically so you can experiment and see what works best for your filtering needs.

What Filter List Lines can do:

This tool transforms how you work with large text lists by letting you quickly find exactly what you need. It’s incredibly useful when you’re dealing with product catalogs, customer lists, log files, or any structured text data that needs filtering.

You can search through thousands of lines instantly to find specific products, customers, or entries. The contains mode helps you locate any line mentioning a particular term, while the starts with and ends with modes give you precise control over line beginnings and endings. This is perfect for finding all entries that begin with a certain code or end with a specific file extension.

The regex mode unlocks powerful pattern matching capabilities. You can search for complex patterns like email addresses, phone numbers, or specific formatting structures. For example, use \d{3}-\d{3}-\d{4} to find phone numbers or [a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,} to locate email addresses in your lists.

The exclude mode is particularly handy for data cleaning. Remove all lines containing error messages, filter out test data, or exclude entries that don’t meet your criteria. Combined with the whole words option, you can precisely target complete words without catching partial matches.

Case sensitivity control lets you work with data that has mixed capitalization. Turn it off when you want comprehensive matching regardless of how the text is capitalized, or turn it on when exact case matching matters for your specific use case.

The trim whitespace feature cleans up messy data by removing extra spaces from the beginning and end of each line. This ensures consistent formatting and helps with accurate matching when your source data has inconsistent spacing.

Example:

Starting with this product list:

Fresh Red Apple
Ripe Yellow Banana
Sweet Orange Slice
Premium Apple Juice
Organic Grape Bunch
Green Apple Tart
Apple Cider Vinegar
Apple Pie Filling

Using “Contains” mode with “apple” (case insensitive) returns:

Fresh Red Apple
Premium Apple Juice
Green Apple Tart
Apple Cider Vinegar
Apple Pie Filling

Switching to “Starts with” mode with “Apple” (case sensitive) gives you:

Apple Cider Vinegar
Apple Pie Filling

Using “Exclude” mode with “Apple” removes all apple-related items, leaving only:

Ripe Yellow Banana
Sweet Orange Slice
Organic Grape Bunch

Filter List Lines Table:

This table shows different filtering scenarios and their results, demonstrating how various filter modes work with the same input data.et points increase engagement and conversion rates by making information easier to digest.

Common Use Cases:

The Filter List Lines tool is essential for anyone working with large datasets or text files who needs to quickly extract specific information. Data analysts use it to filter log files, extract error messages, or find specific transaction types from large datasets. Content managers rely on it to filter product catalogs, customer lists, or inventory data based on categories, brands, or specific criteria.

Developers frequently use the tool to search through code files, configuration files, or debug logs to find specific functions, error patterns, or configuration settings. The regex mode is particularly valuable for finding complex patterns like URLs, email addresses, or specific code structures. Students and researchers use it to filter bibliographies, extract citations, or find specific references in large text files. The whole words option ensures accurate academic searches without false matches.