Line Keeper Tool

Filter and keep only the lines that contain specific words or phrases from your text. Perfect for cleaning up logs, lists, or any text data.

Input Text:

Words/Phrases to Keep (separate by comma):

Case sensitive

Match whole word only

Keep empty lines

Result:

What is the Line Keeper Tool?

The Line Keeper Tool is a powerful text filtering utility that helps you extract specific lines from a larger text document based on keywords or phrases you want to keep. This tool is particularly useful for:

• Analyzing log files by keeping only relevant entries
• Filtering large datasets to find specific information
• Cleaning up exported data from databases or spreadsheets
• Extracting specific lines from code or configuration files
• Processing survey responses or form submissions

How to Use the Line Filter Tool

Using our line filtering tool is simple and straightforward:

1. Paste your text into the input box
2. Enter the words or phrases you want to keep (separated by commas)
3. Adjust the options as needed (case sensitivity, whole word matching)
4. Click "Filter Lines" to process your text
5. Copy or save the filtered results

Advanced Filtering Options

Our tool offers several advanced options to make your text filtering more precise:

• Case Sensitive: When checked, the tool will match the exact letter case of your search terms.
• Whole Word Only: This option ensures the tool only matches complete words, not parts of words.
• Keep Empty Lines: Preserves blank lines in your original text if you need to maintain formatting.

Practical Applications

This line keeper utility has numerous real-world applications:

• Developers: Filter log files to find error messages or specific events
• Data Analysts: Extract relevant data from large CSV exports
• Writers: Find all instances of a character's name in a manuscript
• System Admins: Parse configuration files for specific settings
• Researchers: Process qualitative data from interviews or surveys

Why Use Our Online Line Filter?

Unlike many other text processing tools, our Line Keeper Tool offers several advantages:

• Works entirely in your browser - no data is sent to servers
• Completely free with no limitations
• No registration or login required
• Clean, intuitive interface
• Advanced filtering options for precise control
• Mobile-friendly design

Tips for Effective Text Filtering

To get the best results from our line keeping tool:

• Use specific keywords rather than generic terms
• Try different combinations of search terms
• Experiment with the case sensitivity option
• For complex filtering, run multiple passes with different terms
• Save your original text before filtering