Text Diff Checker
Paste two versions of a text and instantly see exactly which lines differ between them.
About this text diff checker
Spotting the difference between two similar documents by eye is slow and error-prone. This tool compares them line by line and shows you exactly what changed.
How text diff checker works
Each line of Text A is compared against the corresponding line of Text B, any line that differs is shown side by side so the change is immediately visible.
Common uses
- Checking what changed between two drafts of a document
- Comparing two versions of a config or code snippet
- Spotting an accidental change in a copied block of text
How to use this tool
- Paste Text A.
- Paste Text B.
- Click Compare to see every differing line.
What to know before using it
Compares text line by line in order, if lines have been inserted or reordered (rather than just edited), the comparison may shift rather than perfectly align, like a full version-control diff tool would.
Privacy and browser-first processing
Both texts are compared entirely in your browser and are never uploaded or stored.
Frequently asked questions
Does this work for code as well as prose?
Yes, it compares any text line by line, including code, configuration files, or any plain text content.