GroupDocs.Comparison for .NET

Document comparison API for .NET applications.

Published by GroupDocs
Distributed by ComponentSource since 2006

Prices from: US$ 1,175.02 Version: 26.4 NEW Updated: Apr 29, 2026

Screenshot of GroupDocs.Comparison for .NET

About GroupDocs.Comparison for .NET

Document comparison API for .NET applications.

GroupDocs.Comparison for .NET allows users to quickly and easily find differences between two revisions of a document. It merges two uploaded documents and displays them, highlighting differences using the redline view approach. The process is similar to the Microsoft Word change tracking feature, but is hosted online using a Web browser.

Supported File Formats

Microsoft Office Formats

  • Word: DOC, DOCX, DOCM, DOT, DOTX, DOTM, RTF, TXT
  • Excel: XLS, XLSX, XLSM, XLSB, XLTM, XLT, XLTM, XLTX, XLAM, SXC, SpreadsheetML
  • PowerPoint: PPT, PPTX, PPS, PPSX, PPSM, POT, POTM, POTX, PPTM
  • Outlook: MSG, EML, EMLX, PST, OST‎
  • OneNote: ONE
  • Visio: VSD, VDX, VSS, VSSX, VSX, VST, VSTX, VTX, VSDX, VDW, VSTM, VSSM, VSDM

Other Formats

  • Programming Languages: CS, Java, CPP, JS, PY, RB, PL, ASM, GROOVY, JSON, PHP, SQL, LOG, DIFF, LESS, SCALA
  • OpenDocument: ODT, OTT, ODS, ODP, OTP
  • Portable: PDF, MOBI
  • AutoCAD: DXF, DWG
  • Email: EML, EMLX, MSG
  • Images: JPEG, BMP, PNG, GIF, DCM, DICOM, DjVu
  • Web: HTM, HTML, MHTML
  • Text: TXT

GroupDocs.Comparison for .NET Features

  • Identify differences in content and font styles.
  • Save a summarized list of all differences found after file comparison.
  • Apply or reject changes after analyzing differences and export resulting file.
  • Support for Microsoft word “track changes” functionality while comparing word files.
  • Uniquely spot changes coming from each document being compared.
  • Read and send documents via streams.
  • Compare multiple source documents with a single target document.
  • Compare specific pages of word files with each other.
  • Merge up to 3 word documents and compare formulae used in word files.
  • Get information about documents from filepath.
  • Save HTML comparison result as images.
  • Option to show or hide deleted content.
  • Option to turn style comparison of documents on or off.
  • Specify strings to mark inserted, deleted and style change items in comparison document.
  • Specify word separator and font color to stylize compared text.
  • Calculate correct coordinates of changes in PDF, word, powerpoint slides and diagrams.
  • Compare password protected files.
  • Compare chart titles in spreadsheets.
  • Autosize the auto-shapes in resulted file of cells document.
  • Chart generation in the resulted cells files.
  • Compare most popular programming and scripting language files.
  • Compare multiple PDF, Word, Excel, Diagram, Email, Text and OneNote documents.
  • Compare the header and footer of supported file formats.
  • Compare Bookmarks, Variables & Custom properties of word document formats