Compare Two XML Online
Compare Two XML Online — compare two XML strings online for structural differences. It runs in your browser; nothing is uploaded and there is no sign-up.
Compare Two XML Online is a browser-based web developer tool on WebDevToolsBase. Compare Two XML Online — compare two XML strings online for structural differences. It runs in your browser; nothing is uploaded and there is no sign-up. To use it, paste your input and view the result directly in your browser — no signup and nothing to install.
Compare Two XML Online is a free XML Tools utility that runs entirely in your browser — nothing you enter is uploaded.
Compares XML element and attribute names by namespace URI and local name; prefix spelling and attribute order are ignored. Attribute values stay literal, including QName-like strings. Child order and parsed text whitespace are significant; XML parsing normalizes line endings and entity references. CDATA and adjacent text are combined; comments, processing instructions and XML declarations are ignored. Paths use one-based child positions after those rules, not XPath. DTDs are unsupported. Limits: 2 MiB UTF-8 per input, 50,000 nodes and 512 element levels. This is a positional tree comparison, not schema validation, byte equality or XML canonicalization.
How to use Compare Two XML Online
- Paste the original XML on the left and the revised XML on the right.
- Read changed, added and removed nodes or attributes at the reported child positions.
- Use the stated namespace, text and ordering rules to interpret equal or different results. This report does not merge changes.
- Copy the completed difference report. Correct malformed or unsupported input before copying another result.
About this tool
Compare Two XML Online runs entirely in your browser. Compare Two XML Online validates or reshapes your XML in the browser with no server.
Your document is never uploaded. It behaves the same on desktop and mobile, with nothing stored remotely.
Frequently asked questions
What is Compare Two XML Online for?
Use Compare Two XML Online to compare your input without installing anything; everything happens client-side.
Does Compare Two XML Online cost anything?
This browser tool is free. Input size, node count, depth and unsupported-document limits are listed beside the result.
Is my input private in Compare Two XML Online?
Yes — your input never leaves your device; Compare Two XML Online does all the work in your browser.
Does Compare Two XML Online preserve attribute order and namespaces?
The source text is not reformatted. Comparison ignores attribute order and prefix spelling in names, compares namespace URIs and local names, and retains literal attribute values and ordered parsed text.
Does Compare Two XML Online work offline?
Once the page has loaded, Compare Two XML Online keeps working with no network connection.