Compare DOCX files in Java

Powerful Java library to compare DOCX documents and detect even small differences

Compare two DOCX files in Java using our difference checker. With our high-fidelity Java API, you can find the difference between compared DOCX documents and export the results to a convenient file format.

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With this native Java API, you can easily compare DOCX documents and obtain the differences in the desired output format. Our Java library is fully self-contained and does not rely on any external tools or services. It eliminates the need for external dependencies, providing a comprehensive set of DOCX processing functionalities within a single Java package.

On this landing page, we bring you a live demo of the DOCX comparison in action, coupled with an illustrative Java example. It compares the contents of DOCX documents both at the character level and at the word level. Even if only a single character has been changed, the entire word will be marked as modified. Experience firsthand how easy it is to compare two documents by uploading DOCX files to the interface, choosing the desired output format, and getting the differences between DOCX documents marked with 100% accuracy.

Compare Model.Name1 using Java

Sometimes it may not be clear if a DOCX file has been modified, and manually comparing two versions of a document can be a daunting task. Conversely, there are times when you're sure the DOCX document has changed, but visually identifying the updated sections becomes overwhelming. The DOCX comparison is an increasingly sought-after procedure, particularly within automated document workflows. Let's explore typical scenarios where automated DOCX comparison can be highly valuable:

  • Version Control and Collaboration. When multiple contributors are working on the same DOCX file, programmatic document comparison helps identify changes made by different individuals
  • Legal and Compliance. In the legal industry, accurate comparison of legal contracts, agreements, or regulatory documents is crucial. Automated DOCX file comparison ensures precise detection of any modifications, additions, or omissions, helping legal professionals maintain compliance and mitigate legal risks
  • Quality Assurance and Testing. Software development often involves handling extensive documentation, such as requirements, specifications, and test cases. By automating DOCX comparison, Java developers can easily detect discrepancies between versions, ensuring consistency and accuracy throughout the development process
  • Content Management and Publishing. In content-driven industries, like publishing or journalism, maintaining consistency across different versions of articles, manuscripts, or books is essential. Comparing DOCX documents programmatically allows authors and editors to quickly spot differences and ensure the integrity of their content, facilitating efficient publishing workflows

Find differences in DOCX files in Java

As you can see, programmatic DOCX comparison offers immense benefits in various domains, enabling streamlined workflows, enhanced collaboration, and increased productivity. With this Java API, you have the power to harness these advantages seamlessly within your Java projects. Try out our live demo by uploading two DOCX documents, selecting the target format to highlight the differences, and examining the Java code example. This Java snippet demonstrates how to find differences between DOCX files and save the results in the required format.

An important point: the compared DOCX documents should not have revisions before calling the comparison method. You must first accept all the revisions.

Compare two DOCX files using Java
Upload the compared file
Run code
Upload the second file to compare
Select the target format from the list
import com.aspose.words.*;

Document docA = new Document("Input1.docx");
Document docB = new Document("Input2.docx");

// There should be no revisions before comparison.
docA.acceptAllRevisions();
docB.acceptAllRevisions();

docA.compare(docB, "Author Name", new Date());
docA.save("Output.docx");
Run code

How to compare two DOCX in Java

  1. Install 'Aspose.Words for Java'
  2. Add a library reference (import the library) to your Java project
  3. Load two DOCX to compare
  4. Accept all revisions before calling the 'compare()' method
  5. Call the 'compare()' method to compare two DOCX
  6. Call the 'Save()' method, passing an output filename with required extension
  7. Get the result of compression DOCX as a separate file

Java library to compare DOCX documents

We host our Java packages in Maven repositories. 'Aspose.Words for Java' is a common JAR file containing byte-code. Please follow the step-by-step instructions on how to install it to your Java developer environment.

System Requirements

Java SE 7 and more recent Java versions are supported. We also provide a separate package for Java SE 6 in case you are obliged to use this outdated JRE.

Our Java package is cross-platform and runs on all operating systems with JVM implementation, including Microsoft Windows, Linux, macOS, Android and iOS.

For information on optional package dependencies, such as JogAmp JOGL, Harfbuzz font engine, Java Advanced Imaging JAI, please refer to Product Documentation.

Other supported file formats

You can perform compare operation for other file formats:

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