WinMerge是一款运行于Windows系统下的免费开源的文件比较/合并工具，使用它可以非常方便地比较多个文档内容甚至是文件夹与文件夹之间的文件差异。适合程序员或者经常需要撰写文稿的朋友使用。不仅仅是文件，还支持图片、文本对比哦！

WinMerge 2.16.2
  File compare:
  - Bugfix: Edit > Replace > All, Undo: should undo all (sf.net #2113)
  - Bugfix: Save As: default directory should be file's original
    directory (sf.net #2163)
  - Bugfix: Strings with embedded 0 bytes are handled incorrectly (sf.net
    #2187)
  - Bugfix: Removed word level merge support due to unstable behavior
  - Bugfix: Menu item "File->File Encoding" moves main window (Bitbucket #150)
  - Bugfix: Crash when maximizing MDI child window
  - bugfix: Crash when failed to load file
  - Add syntax highlight for Lua (Bitbucket #114)
  Folder compare:
  - Bugfix: Compare results refresh incorrectly after deletions (sf.net #2217)
  Archive Support:
  - Upgraded to 7-zip 19.00
  Tab bar:
  - Improve icon display at 120DPI
  Image compare:
  - Bugfix: Zoom In/Out shortcuts don't update zoom level in location
    pane (Bitbucket #149)
  - Zoom In/Out menu items for image compare (Bitbucket #148)
  Open dialog:
  - Allow quoted filenames in "Select Files or Folders" (sf.net #1240,
    GitHub #137)
  Manual:
  - Some tweaks for the manual (Bitbucket PR #35)
  Installer:
  - Bugfix: Gibberish language during installation (Bitbucket #147)
  Translations:
  - Update Catalan translation (Bitbucket PR #29)
  - Update Italian translation (Bitbucket PR #32)
  - Update Lithuanian translation (Bitbucket PR #33)
  - Update Simplified Chinese translation (Bitbucket PR #34)

官网地址：http://winmerge.org

官网下载链接：WinMerge 2.16.2 32位 | 64位

使用教程可以参考：https://www.kocpc.com.tw/archives/265159