Beyond Compare is a file comparison program.

Beyond Compare is used by developers to compare software source files.

Beyond Compare lets you compare files and folders quickly and easily. With simple, powerful features, you can focus on the differences you're interested in and ignore the irrelevant ones. You can then merge changes, synchronize files, and generate reports.

You can compare entire drives and folders at high speed, checking only the size and modification times, or you can test thoroughly, comparing each file byte by byte. FTP sites and zip files are seamlessly integrated, so you can update your website with a single click.

Once changed files are found, Beyond Compare will intelligently choose the best way to compare them and show the differences. Files can be viewed and edited with syntax highlighting and comparison rules tailored specifically for the document type, source code, and HTML. The text content of Microsoft Word .doc and Adobe .pdf files can be compared but not edited. Data files, executables, binary data, and images have dedicated viewers so you always see changes in the appropriate view.