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Remove (or keep) lines from a list containing a word or phrase you specify.

Keep lines containing a word or phrase, or keep the lines that don't have that word or phrase (click "Show Example). You can also ignore case, match only whole words, and sort results. Just paste lines into the field, select options, and press Submit. Results appear at the bottom of the page. Note: Filtering an extremely large list can slow your computer. See details here.

Starting with this list:
cat
dog
mat
a big chubby hog

If you keep lines with "at" in them, you will be left with
cat
mat

If you remove lines with "at" in them, you will be left with

dog
a big chubby hog

1. Paste list of lines to search here.


2. Paste word or phrase to search for here, then press Submit.

keep remove     lines containing this string of characters
Ignore capitalization | Match on whole words only | Sort results
Disclaimer: You use FilterLines entirely at your own risk.
Also, try DeDupeList.com.