How to use the Text Diff Checker
- Paste the original and changed text.
- Click Compare.
- Review added and removed lines.
How it works
The tool computes the longest common subsequence of lines, then marks lines only in the changed text as additions (+) and lines only in the original as removals (−).
Worked example
Changing one line in a ten-line text shows 1 added and 1 removed line.
Good to know
Comparison is line-based and case-sensitive.
Limit is 1,500 lines per side.
Nothing is uploaded.
Frequently asked questions
A list of differences between two versions of a text.
Yes.
Paste file contents into the boxes.
BillGen provides general-purpose tools; verify important outputs before relying on them.