XML Compare

Compare two XML documents side-by-side with line numbers, Git-style color highlights for added, removed, and modified lines. Format both sides before comparing for the cleanest diff output.

Left XML

Right XML

XML Compare FAQ

Does this compare XML semantically?

It uses fast line-by-line diff for clarity and speed, ideal for source reviews and troubleshooting.

Should I format XML first?

Yes. Format both sides first to normalize indentation and get cleaner line-level diffs.

What happens with invalid XML?

An inline error is shown for the invalid side so you can fix it before comparing.

Can I use it on mobile?

Yes. Panes stack vertically on small screens while preserving all controls.