A precise diff often needs both exact row references and a way to ignore trailing-space noise.
Text Diff Checker offers line numbers and a trim option for an accurate line-by-line comparison.
How to use Text Diff Checker
- Paste the source text on the left and the revised text on the right.
- Turn on Line numbers for row references and Trim line ends to ignore trailing spaces.
- Review the numbered differences, then copy or download them.
Use cases
- Checking exact line changes between two text files.
- Ignoring trailing-whitespace noise while diffing.
- Referencing changed rows by line number.
Good to know
Text Diff Checker aligns the two texts line by line, with optional line numbers for exact references and a trim option that ignores leading and trailing spaces during matching. Trimming affects matching only, not the characters shown. It runs in the browser.
Frequently asked questions
What does Trim line ends do?
It ignores leading and trailing whitespace when matching lines, so trailing-space differences do not count as changes.
Can I reference changes by line number?
Yes. Turn on Line numbers and each row is labeled so you can cite the exact line that changed.
Does it work on complete lines?
Yes. It aligns complete lines, pairing line numbers with trim for precise row-level review.