Best File and Document Comparison Software for Microsoft Outlook

Draftable is an Enterprise-Grade Document Comparison Software that lets users easily spot changes between documents. The Draftable product suite includes Draftable Online for browser-based document comparisons, Draftable Desktop for secure computer-based document comparisons, and Draftable API for integrating our dynamic technology into your app. The software features a side-by-side view and a change list that presents all modifications in the one place. Users can export comparisons to a PDF, and compare different file types including PDF, Word, PowerPoint, and Excel.

Draftable Legal provides legal teams with fast, accurate redline comparisons, offering a cost-effective enterprise-grade solution designed for the legal industry. The platform supports a wide range of file formats, including Word, PDF, PPT, Excel, and even scanned documents, thanks to its built-in OCR functionality. Users and administrators can fully customize output results and manage preset profiles to meet their specific needs. Integration with file explorer, document management systems (DMS), MS Word, and Outlook makes it easy to review and export output, streamlining workflows. Developed in close collaboration with legal professionals, Draftable Legal was built to address their unique document comparison needs, ensuring high performance. The proprietary algorithm that powers Draftable delivers accurate detection of changes across various document types, making it an indispensable tool. Additionally, the platform offers expert customer support, ensuring a reliable and secure document comparison experience that legal professionals can trust. With this solution, legal teams can enhance efficiency and reduce the time spent on manual comparison tasks.

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. An AI summary tool can also explain complex or semantic differences in plain English (web only). 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, and it has no AI or LLM integrations. That makes it a private, secure choice for redlining legal contracts and other confidential documents. Professional legal redlining is the centerpiece for legal teams. Diffchecker produces polished, customizable Word and PDF redlines of contracts and agreements, comparing PDF to Word, PDF to PDF, or Word to Word, with tracked changes down to the word and character and OCR for scanned documents. The Diffchecker Legal plan adds iManage integration, which lets users redline documents directly from iManage and save results back to it. Enterprise adds SAML single sign-on, SCIM provisioning, and dedicated support. Text-diff features include: real-time text editor, syntax highlighting, ignore whitespace or custom text, PDF export, and a smart algorithm that chooses between character and word level diff granularity automatically. Document-diff features include: changelog, formatting change detection (e.g. font size/style/color), move detection, redline, image detection, custom ignore rules, and OCR. Plans start free, with Pro + Desktop at $15, Legal at $20, and Enterprise at $40 per user per month.