Some checks are strictly about lines: which rows were added, removed, or moved between two versions.
Line Compare Tool does a strict line-by-line comparison, with optional line numbers for exact references.
How to use Line Compare Tool
- Turn on line numbers before comparing if you need exact row references.
- Paste the original lines on the left and the changed lines on the right.
- Review the per-line additions and removals, then copy the result.
Use cases
- Comparing two lists row by row.
- Checking which lines changed in a pasted code block.
- Reviewing line-level edits in structured text.
Good to know
Line Compare Tool treats each line as a unit and aligns the two texts with a longest-common-subsequence diff, so it reports the minimal set of added and removed lines. Optional line numbers make it easy to cite exact rows. It is line-based by design and runs in the browser.
Frequently asked questions
Is this strictly line by line?
Yes. Each line is compared as a whole unit, which is ideal for lists and structured text where whole rows matter.
Can I show line numbers?
Yes. Enable line numbers to label each row so you can reference the exact line that changed.
Does reordering rows show as changes?
Moved rows appear as a removal in the old position and an addition in the new one, since the comparison is positional.