Compare and merge files, folders, and documents
ExamDiff Pro
For Developers, Writers, and Teams
Code-aware syntax highlighting and structure matching Compare Word, Excel, PowerPoint, PDF, and Zip files 2- and 3-way merge, also for Git and other VCS Fast with large files and folders; native ARM64 Developed and supported by its author since 1997
Perform code reviews and share diff reports with your colleagues Accurately compare executable files with binary comparison Synchronize files and folders between your PC and external media Compare from Windows Explorer using the built-in Shell extension Create directory snapshots for future comparison and archiving
What is ExamDiff Pro?
ExamDiff Pro is a fast, visual tool for comparing and merging files, folders, and documents on Windows. It understands the code it compares, plugs into Git and other version control systems, and handles Word, Excel, PowerPoint, PDF, and Zip files. It gets a major new release every year and is trusted by professionals at Apple, Boeing, Oracle, and thousands of organizations worldwide.
Latest stable release build:
17.0.2.2, September 27, 2026
What's New in Recent Versions
Code-aware comparison (v13–16)
Files are parsed with Tree-sitter: a scope bar shows where you are in the code, matching functions are aligned between versions, and 20+ kinds of syntax elements are highlighted.
Office documents, done properly (v17)
Rewritten Word, Excel, and PowerPoint support keeps tables, lists, comments, and footnotes, so you compare what the document says, not a flattened text dump.
Faster and leaner (v17)
Comparing and merging is significantly faster and uses less memory. Very large files stay responsive, and folder comparison adds tree mode and fast byte-by-byte checks.
Crisp, modern Windows (v16–17)
DirectWrite text rendering for crisper text, bold and italic syntax styles, high-DPI and dark-theme support, and native ARM64 builds.
Our Clients
Testimonials
Top Features
Compare text files, binary files, and directories
Perform two-way and three-way diff and merge
Highlight document syntax
Compare tables
Navigate through classes, functions, and other code blocks, via scope bar
Fuzzy line matching
Line Inspector panel for easy recognition of differences within lines
Save the file differences to a dynamic HTML web page. Print and print preview diff reports
Add manual synchronization points to text file comparison
Compare directly from Windows Explorer
Advanced Ignore options
Plug-in support
Benefits
Perform code reviews and share diff reports with your colleagues
Compare a local folder to the one on FTP server using built-in plug-ins
Visualize your code structure through syntax highlighting
Compare Word, Excel, PowerPoint, and PDF files using plug-ins
Create directory snapshots for future comparison and archiving
Compare from Windows Explorer using the built-in Shell extension
Accurately compare executable files with binary comparison
Synchronize files and folders between your PC and external media
Quickly undo mistakes by comparing files with previous versions
Merge different file versions using two- and three-way diff and merge
Additional Benefits
For developers
- Track changes in files and folders
- Perform code reviews
- Easily merge different versions of files using two- and three-way diff and merge.
- Share HTML and printed difference reports with your colleagues
- Compare a local website to an FTP server (using the FTP plug-in)
- Ignore programming language comments to focus only on the most important aspects of your source code
- Visualize different aspects of code through syntax highlighting
- Compare executable files (DLLs, EXEs, etc.) using built-in binary comparison
For regular computer users
- Quickly navigate through differences
- Synchronize files and directories between your PC and external media
- Create directory snapshots for future comparison and archiving
- Quickly find and undo mistakes by comparing files with previous versions
- Easily drag and drop files and directories
- Compare from Windows Explorer using the built-in Shell extension
For testers
- Validate test results by comparing them with a baseline
- Save test comparison results into reports
For writers
- Edit your documents within the comparison window using the built-in text editor
- Use synchronized word wrap to compare document paragraphs
- Compare Word, Excel, PowerPoint, and PDF documents using plug-ins
For teams and organizations
- Flexible multi-seat licensing with volume discounts
- Perform code reviews and share diff reports across your team
- Deploy consistently across your organization with silent install support
- Upgrade any time, even if maintenance has lapsed — no penalties
- Trusted by professionals at Apple, Boeing, Oracle, and thousands of organizations worldwide
- Unlimited email support included with every license
Free basic version also available.
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