Filter Lines by Keyword

Filter your list to show or hide lines matching a specific keyword. Choose case sensitive matching and see how many lines match.

This free filter tool helps you search and find specific lines by keyword instantly. It is useful for data analysts, researchers, and anyone organizing large lists of items. The tool supports include and exclude filters with case-sensitive options to organize data by category. It works entirely in your browser with no signup required, no data collection, and no tracking.

Paste your list here (one item per line):

0 characters

Filter Options:

Keyword to search for:

Filter Action:

Show matching lines only Hide matching lines

Case sensitive (treat "Apple" and "apple" as different)

Filtered Result:

How to Use:

Paste or type your list in the input area (one item per line)
Enter the keyword you want to search for
Choose to show matching lines only or hide matching lines
Select case sensitive if you want exact case matching
Click "Filter Lines" to process your list
See the filtered result and count of matching lines
Click "Copy" to copy to clipboard or "Download" to save as a file

Options Explained:

Show matching lines only: Displays only lines that contain the keyword
Hide matching lines: Displays all lines except those containing the keyword
Case sensitive: When enabled, "Apple" and "apple" are treated as different. When disabled, case is ignored.

Keyboard Shortcuts:

Ctrl + Enter (or Cmd + Enter): Filter lines
Ctrl + C: Copy when output is focused

Related Tools:

Why Use the Filter Lines Tool?

Works instantly in your browser - no downloads needed
Completely free - no signup or registration required
No data collection or tracking - your data stays private
Include and exclude filter options
Case sensitive and case insensitive modes
Handles large lists instantly