No uploads · runs in browser
Line Filter
Keep only lines containing a term, or remove them, with regex and case options.
Favorite it to find it fast on home
When to use it
Keep only error lines from a server log
Drop lines mentioning a region you do not serve
Keep lines matching an email pattern
How to use it
1Step 1Paste your text into Original to start
2Step 2Press Filter and the result appears below
3Step 3Use the copy button to take the result anywhere
If the result looks off
The result looks cut off
Use the copy button to get the full result.
My input disappeared
It is saved on this device. Clearing browser storage removes it too.
Frequently asked questions
Can I filter on several words at once?
Yes. In regex mode use alternation, for example error|fail|timeout.
Can I filter on several words at once?
Yes. In regex mode use alternation, for example error|fail|timeout.