Semantic XML comparison inside your editor — find what changed between two XML documents, with control over how elements, attributes, values, and repeated child elements are matched. Powered by @compare-xml/core.
Compare anything XML: the active editor against another open editor, a file on disk, or the clipboard.
Aligned diff view: results open in VSCode's native diff editor, with both sides padded so corresponding elements line up — even when whole blocks were added or removed.
Difference navigator: a sidebar view groups every difference by kind — Added, Deleted, Value Changed — and jumps to it on click.
Semantic options (from the command Compare XML: Configure Comparison Options, or as workspace defaults):
compare-xml.keyCaseInsensitive — ignore element/attribute name case (default false)
compare-xml.valueCaseInsensitive — ignore text/attribute value case (default false)
Usage
Open an XML file.
Run Compare XML: Compare Active Editor with... from the command palette (or the editor title menu) and pick what to compare against.
Browse the differences in the Compare XML sidebar; click one to jump to it.
You can also right-click a .xml file in the explorer and use Select for Compare, then Compare with Selected on the second file — the same flow as VSCode's built-in file compare.
