Filtering out every line that mentions a specific word or phrase — removing all log entries mentioning a particular error, stripping out lines referencing a discontinued product from a list — is a common but repetitive manual editing task at scale.
This tool checks every line of your pasted text and removes any line containing your specified keyword (case-insensitive by default), keeping every other line exactly as it was.
This is useful for cleaning up a log file to exclude a noisy recurring entry, filtering a list to exclude items matching a certain criteria, or quickly removing every reference to something specific from a larger block of text.
Because everything runs locally in your browser, results appear instantly and nothing you type or upload is ever sent to a server.
Bookmark this page if you expect to use this tool regularly — it loads fast and behaves the same way every time, with no account needed.
This kind of task shows up constantly in everyday writing, coding, design, and admin work, which is exactly why a dedicated, focused tool saves so much back-and-forth.
A tool that does one job well, without a cluttered interface or unrelated features competing for attention, tends to be faster to use than a heavier all-in-one app.
If you find yourself needing this often, keeping this page open in a tab is usually faster than digging through a bigger software suite's menus.
Because there's no sign-up or installation step, you can jump straight from a search result to a working tool in a couple of seconds.
The interface is intentionally simple, so there's no learning curve — the input goes in, the result comes out, and that's the whole interaction.
Frequently asked questions
Is the keyword match case-sensitive?
No, matching is case-insensitive by default, so searching for "error" will also match lines containing "Error" or "ERROR".
Does this remove partial word matches too, like 'cat' matching inside 'category'?
Yes, this checks for the keyword as a substring anywhere in the line, so it would also match within a longer word containing those characters.