Overview
Introduction
Cleaning up a shared trailing marker from every line of a list, a stray comma, a semicolon, a repeated closing tag, is tedious to do one line at a time in a text editor.
It runs entirely client-side, so nothing you paste is ever uploaded to a server.
What Is Line Suffix Remover?
A line-based suffix-removal tool that checks each line of the input independently and strips your chosen suffix from any line that actually ends with it.
It runs entirely client-side as part of this site's String Tools collection, so nothing you paste is ever uploaded to a server.
How Line Suffix Remover Works
The tool splits the input on newlines, and for each line checks `line.endsWith(suffix)`; matching lines get `suffix.length` characters sliced off the end, while other lines pass through unchanged, then rejoins with newlines.
The transformation happens synchronously in JavaScript the moment you type, with no network round trip involved.
When To Use Line Suffix Remover
Use it to strip trailing commas from a pasted code array, remove a shared closing tag from every line, or clean up semicolons left over from another format.
It's a fast way to get the answer without opening a code editor, a REPL, or writing a one-off script just to check.
Often used alongside Suffix Adder, Line Suffix Adder and Whitespace Trimmer.
Features
Advantages
- Safe by design: only lines that actually end with the suffix are modified, leaving the rest untouched.
- Handles mixed input where some lines have the suffix and others don't.
Limitations
- The match is case-sensitive and exact, so a differently-cased suffix won't be detected.
- Doesn't remove the suffix from the middle of a line, only from the very end.
Examples
Best Practices & Notes
Best Practices
- If only some lines have the suffix, that's fine; the tool leaves non-matching lines untouched instead of erroring.
Developer Notes
The implementation is `input.split("\n").map((line) => (suffix.length > 0 && line.endsWith(suffix) ? line.slice(0, line.length - suffix.length) : line)).join("\n")`, checking each line independently rather than operating on the whole string at once.
Line Suffix Remover Use Cases
- Removing trailing commas from a pasted code array or list
- Stripping a repeated closing tag or marker from every line
- Cleaning semicolons left over after converting between formats
Common Mistakes
- Assuming every line will be modified, when lines that don't end with the suffix are simply left as-is.
Tips
- Use Line Suffix Adder first to preview what a suffix would look like before removing it elsewhere.