Compare Suite vs Diffinity

Compare Suite is a Windows file comparison tool for office professionals, developers, and webmasters. It compares Word, Excel, PowerPoint, PDF, web pages, and plain text, and can produce reports with comments attached to differences. Spreadsheet comparisons show absolute or percentage changes in numbers and date differences in days. PDF comparison extracts text, so scanned PDFs need OCR before their text can be compared. The software can compare and synchronize local or remote folders, compare files over FTP, and inspect ZIP or RAR archives without unpacking them. Command-line automation and integrations with third-party document management systems and tools are also listed. The maker says processing happens locally and opened files remain on the PC. The free Light plan covers basic file comparison; paid one-time licenses are $70, paid once for Standard and $140, paid once for Professional. A fully functional 30-day evaluation is available. Windows 10 or Windows 7 is listed as a minimum requirement; Word and Excel comparisons require Microsoft Word and Excel, and Office 365 is not supported.

Diffinity is a free Windows utility for comparing and merging text files and folders. It shows line-level differences, highlights changed characters or words, and marks added, removed, and changed lines. A thumbnail view summarizes differences, while search can highlight every instance of a selected word. The maker emphasizes readable source-code comparisons, including improved diffing for C-style code and XML. Editing tools include syntax highlighting, customizable tabs, manual alignment markers, and inline differences that update while typing. Diffinity supports Unicode, detects encoding automatically, and warns when compared files use different encodings. It integrates with Windows Explorer, can run from an external device, and accepts file or folder paths with command-line options, including a folder-diff view. Documentation covers configuration with Git and Perforce Helix P4V. The license allows free personal and commercial use and redistribution of unmodified copies, while prohibiting modification and reverse engineering. Listed release 0.9.6, dated 2026-09-16, requires .NET 8.0.