Compare Two XML Online — Free, Instant, No Install
Paste any two XML documents and compare them instantly in your browser. Every added element, changed attribute, and removed tag is highlighted. No account. No upload. No limits.
Paste text in both panels above to compare
Or to see how it works
Compare XML responses from two environments
Paste the XML your staging API returned alongside the production response to instantly see what diverged — a missing element, a changed attribute value, or an extra wrapper node. No terminal, no local tools, no setup.
Works with any XML format
SOAP envelopes, pom.xml, AndroidManifest.xml, RSS feeds, SVG, XSLT, Spring beans, or any custom XML schema. If it's valid XML, paste it in and compare. HTML documents work too.
No upload — XML never leaves your browser
All diffing runs locally in JavaScript. Your XML is never sent to any server, never stored, and never logged. Safe for SOAP messages with auth tokens, internal configuration files, or any XML containing sensitive values.
XML/HTML syntax highlighting
Tags, attributes, attribute values, and text content are color-coded on top of the diff. Changed lines are highlighted, and within changed lines the exact characters that differ are marked — spot a single digit change in an attribute value immediately.
Side-by-side or inline view
Switch between side-by-side view (both XML documents in parallel columns) and inline view (a single merged diff with change markers). A statistics bar shows total lines added, removed, and unchanged at a glance.
Compare XML schema versions
Reviewing a breaking change between two versions of an XSD or WSDL? Paste both and the diff shows exactly which element declarations were added, which types changed, and which attributes were removed — without opening any local XML editor.
How to compare XML online in 3 steps
- 1
Paste your first XML document
Put the original or baseline XML in the left editor. Works with any valid XML — API responses, config files, SOAP envelopes, manifests, or HTML.
- 2
Paste your second XML document
Put the updated or comparison XML in the right editor. This is what you're comparing against — a newer version, a different environment, or a proposed change.
- 3
Read the highlighted diff instantly
Green lines were added; red lines were removed. Characters that changed within a line are highlighted more intensely. Switch between side-by-side and inline views using the toolbar.
Need full XML diff checker features?
The XML Diff Checker page covers all the same functionality plus additional context for comparing HTML, SOAP envelopes, and XML configuration files.
Frequently asked questions
How do I compare two XML documents online?
Paste the first XML document into the left editor and the second into the right editor. The diff highlights every changed line instantly — added elements in green, removed elements in red, with character-level highlighting inside changed lines. No installation, no account, no file uploads required.
Can I compare two XMLs online without installing anything?
Yes. This tool runs entirely in your browser. Just paste both XML documents and the diff is computed locally using JavaScript — nothing is uploaded to any server. Works on any modern browser including Chrome, Firefox, Safari, and Edge.
Is this XML comparison tool free?
Completely free with no rate limits, no account required, and no usage caps. Paste and compare as many XML documents as you need.
What kinds of XML can I compare here?
Any well-formed XML: REST or SOAP API responses, Maven pom.xml, Android manifests, Spring configuration files, RSS/Atom feeds, XSLT stylesheets, SVG files, and custom XML schemas. HTML documents work too since HTML is a form of XML.
Is my XML data private when I compare online?
Yes. All comparison logic runs locally in your browser — your XML is never sent to any server, never stored, and never logged. Safe for production payloads, internal configs, SOAP messages with credentials, or any XML containing sensitive data.
What is the difference between side-by-side and inline XML diff?
Side-by-side view shows both XML documents in parallel columns, making it easy to compare structure at a glance. Inline view merges the two documents into a single view with colored markers showing what was added or removed. Both views highlight character-level differences within changed lines.