NextDiff
NextDiff is a free Windows utility for comparing files and folders in a clear visual interface. It helps users inspect differences between two versions of a text file, source code file, log, script, or configuration file. The side-by-side comparison view highlights added, removed, and changed lines, while in-line change marking helps identify the exact modified fragments. NextDiff also supports folder comparison, direct editing, copy-left/copy-right merge actions, difference navigation, and flexible options for ignoring case, blank lines, and whitespace. It is a useful freeware tool for developers, administrators, writers, and anyone who regularly works with changed files.
Learn more
Diffchecker
Diffchecker is a file and document comparison tool for text, code, PDFs, Word documents, Excel spreadsheets, PowerPoints, images, and folders.
Diffchecker's free online tool is built for collaboration. It runs in any browser with no sign-up and lets users save diffs online, share them by link, and leave line-by-line comments.
Diffchecker Desktop is built for confidential work and is the stronger choice for compliance-sensitive workflows. It runs fully offline on Windows, Mac, and Linux, so files never leave the device. That makes it a private, secure choice for redlining legal contracts and other confidential documents.
Diffchecker shows precise changes down to the word and character, with professional legal redlining, PDF and Word export, OCR for scanned documents, and pixel-by-pixel image differences. The Legal plan adds iManage integration, and the Enterprise plan adds SAML single sign-on and SCIM provisioning. Plans start free, with Pro+Desktop from $15 per user per month.
Learn more
Draftable Legal
Draftable Legal offers fast and accurate redline comparisons for legal teams looking for a cost-effective enterprise-grade solution.
It supports multiple file formats including Word, PDF, PPT, Excel, and even scanned documents thanks to its built-in OCR. Users (and administrators within organisations) can customise output results and create and manage preset profiles. Seamless integration with file explorer, DMS, MS Word, and Outlook allows for easy review and export of output.
Developed in collaboration with legal professionals, Draftable Legal addresses their unique needs. Leveraging Draftable’s proprietary algorithm, this software accurately detects changes across different types of documents. Its performance comes with expert customer support, making it a reliable and secure document comparison solution that legal professionals can trust.
Learn more
Active File Compare
Active File Compare is an advanced utility for the comparison and synchronization of any text files in visual mode, it reports the results of the comparison in two side-by-side windows on the screen, the differing lines being marked with special color icons. This utility is an excellent tool for comparing source code versions since it allows you to correct the source code and also supports syntax highlighting for the programming languages C++, C#, Java, Visual Basic, Delphi, Object Pascal, SQL, Perl, Assembler, Fortran, Foxpro etc. and for HTML, PHP, XML, INI and BAT files. You can also use it to manage the source code when several independent authors make changes. The algorithm of comparing is designed in such a way that it's always very accurate in finding differences both in small text files and in files with a large number of changes. Active File Compare has its own file manager consisting of two side-by-side windows.
Learn more