Best File and Document Comparison Software for Windows

Bring a powerful text, image and file comparison app to your desktop. Available for Windows, macOS and Linux. Take advantage of all Diffchecker features such as unified diff view, character-level diffs and more. Keep your files confidential and private – with Diffchecker Desktop they never leave your computer. Since Diffchecker Desktop runs fully on your computer, it doesn’t communicate with our servers to create your diffs. What this means is that there’s no way anybody else but you can view your sensitive data. Diffchecker Desktop runs offline which means you can use it wherever you are and save on your data plan. As everything happens locally on your own computer, you also get significantly improved app speed. Diffchecker's Dark Mode has been specifically designed to help you stay productive in low-light environments, reduce eye strain and conserve battery power all while serving you elegant looks and powerful functionality.

DeltaCompare is the gold standard enterprise-grade, multi-format comparison solution, designed to help you find and process changes across your documents and data. It integrates effortlessly via Java or REST APIs into your existing systems or workflows, whether it's a CMS, DMS, CI/CD pipeline, or custom automation workflow. The patented Delta output is designed to handle even the most intricate and non-matching structures, ideal for industries demanding precision. DeltaCompare transforms change detection from a manual, time-consuming process into a fast, accurate, and fully automated workflow. It ensures that every alteration, whether minor text edits, structural shifts, or format-specific changes, is found and processed with precision. Customisable comparison rules enable you to define what to highlight, ignore, or prioritise depending on content type or business need.