Compare XML Documents Online
Paste two XML documents. See what was added, removed, or changed — elements, attributes, and values.
🔒 100% private — runs entirely in your browseror try sample data
Paste two XML documents. See what was added, removed, or changed — elements, attributes, and values.
🔒 100% private — runs entirely in your browseror try sample data
Compare XML Documents shows you exactly what changed between two XML files with a clear, side-by-side visual diff. Every added element, removed attribute, and modified value is color-coded and highlighted at the word level, making it easy to review changes in POM files, SOAP configurations, SVG graphics, XML data feeds, and any other XML-based format.
XML remains the backbone of enterprise systems, build tools, and data interchange. Maven POM files define Java project dependencies, Spring configuration files wire application components, SOAP services exchange XML messages, and Android layouts use XML for UI definitions. Even a small change — a version bump in a dependency, a new attribute on an element, or a namespace modification — can have cascading effects. Spotting these changes in verbose XML documents by reading them line-by-line is slow and error-prone.
Paste your XML from any source — files, API responses, build tool output, or clipboard. The tool handles XML declarations, namespaces, attributes, CDATA sections, and comments. Use "Ignore whitespace" to filter out formatting differences. Everything runs in your browser, so sensitive XML configurations and SOAP messages are never transmitted to any server.
<!-- pom.xml (before) -->
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <version>2.7.5</version>
</dependency> <!-- pom.xml (after) -->
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <version>3.2.0</version>
</dependency>
<!-- New dependency added -->
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId> <version>3.2.0</version>
</dependency>POM diffs catch version bumps, new dependencies, and scope changes. Essential for reviewing dependency PRs in Java projects.
<!-- web-services.xml (v1) -->
<ws:endpoint id="userService" implementor="com.example.UserServiceImpl" address="/ws/users" wsdlLocation="classpath:wsdl/users.wsdl"> <ws:properties> <entry key="timeout" value="30000"/> </ws:properties>
</ws:endpoint> <!-- web-services.xml (v2) — timeout changed, auth added -->
<ws:endpoint id="userService" implementor="com.example.UserServiceImpl" address="/ws/v2/users" wsdlLocation="classpath:wsdl/users-v2.wsdl"> <ws:properties> <entry key="timeout" value="15000"/> <entry key="auth.required" value="true"/> </ws:properties>
</ws:endpoint>SOAP config diffs reveal endpoint URL changes, WSDL updates, and property modifications that affect service behavior.
<!-- activity_main.xml (before) -->
<LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <TextView android:id="@+id/title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="18sp" />
</LinearLayout> <!-- activity_main.xml (after) — ConstraintLayout migration -->
<ConstraintLayout android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:id="@+id/title" android:layout_width="0dp" android:layout_height="wrap_content" android:textSize="20sp" app:layout_constraintStart_toStartOf="parent" app:layout_constraintEnd_toEndOf="parent" />
</ConstraintLayout>Layout XML diffs show attribute changes, element replacements, and new constraint attributes when migrating between layout types.
XML namespaces can use arbitrary prefixes. <ns1:element> and <ns2:element> might refer to the same namespace URI but will appear as different text. This tool compares XML as text, so different namespace prefixes for the same URI will show as changes. Standardize prefixes before comparing if this creates noise.
The XML specification does not define attribute order. <el a="1" b="2"> and <el b="2" a="1"> are semantically identical but will appear as modified lines in a text diff. If your XML is generated by different tools, attribute reordering may produce false positives.
XML can have significant whitespace within text content and insignificant whitespace between elements (formatting/indentation). The "Ignore whitespace" option treats all whitespace changes equally. If whitespace within element text content matters to your document, review whitespace changes carefully rather than ignoring them entirely.
Paste your XML documents into the two input panels and click Compare. The tool shows a side-by-side diff with line-by-line comparison and word-level highlighting for modified elements, attributes, and values.
The tool compares XML as text, so namespace prefixes are compared literally. If two documents use different prefixes for the same namespace URI (e.g., ns1: vs soap:), those will appear as differences. Standardize prefixes before comparing to reduce noise.
Yes. POM files are standard XML documents and work perfectly with this tool. The diff highlights dependency version changes, new plugin configurations, property additions, and profile modifications.
Yes. This tool runs entirely in your browser using client-side JavaScript. Your XML documents — including SOAP messages, configuration files, and any embedded credentials — are never sent to any server.
Not directly. XML and JSON have fundamentally different syntax, so a text comparison would produce mostly noise. Convert both to the same format first. Use the XML to JSON converter to transform XML into JSON, then compare with the JSON Object Diff tool.
Yes. CDATA sections, XML comments, processing instructions, and XML declarations are all preserved in the diff. Changes within CDATA blocks are highlighted just like any other text change.