Line Filter | Extract or Remove Matching Lines
Filter text lines easily — include or exclude lines based on specific text or regex patterns. Ideal for cleaning logs or extracting data. Runs fully in your browser.
How to Use This Tool
- 1
Paste your text into the input area.
- 2
Select filter mode: Include or Exclude.
- 3
Enter keywords or patterns to match.
- 4
Enable options like case-sensitive or regex matching.
- 5
View and copy filtered output.
Use Cases & Examples
Log Entry Extraction
Extract specific log entries, error messages, or warnings from server logs for analysis.
Code Comment Removal
Remove comment lines or unwanted code sections quickly from source files.
CSV Row Filtering
Filter CSV rows by matching specific content values or patterns in the data.
Keyword Search & Extraction
Search and extract only lines containing specific keywords or phrases.
Raw Text Cleanup
Clean or simplify raw text data by removing irrelevant or noisy lines.
How Line Filtering Works
The filter processes text line by line, checking each line against the specified text or regex pattern.
Include mode retains only lines that match the filter criteria.
Exclude mode removes lines that match the filter criteria.
Empty lines can be automatically skipped or processed based on user preference.
Frequently Asked Questions
Q.What’s the difference between include and exclude?
A. Include keeps matching lines; exclude removes them.
Q.Can I use regex patterns?
A. Yes, enable Regular Expression mode to use advanced pattern matching.
Q.What does skipping empty lines do?
A. Empty lines are automatically ignored or kept based on the chosen mode.
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