TortoiseGit 內置的文件比對工具是 TortoiseMerge，用於文件比對和解決沖突合並，TortoiseGit 還支持外部的比對工具使用，比如 Beyond Compare 和 DiffMerge，配置很簡單。
Beyond Compare：
- Diff Viewer:
C:\Program Files (x86)\Beyond Compare 3\BComp.exe %base %mine /title1=%bname /title2=%yname /leftreadonly - Merge Tool:
C:\Program Files (x86)\Beyond Compare 3\BComp.exe” %mine %theirs %base %merged /title1=%yname /title2=%tname /title3=%bname /title4=%mname
DiffMerge：
- Diff Viewer:
C:\Program Files\SourceGear\Common\DiffMerge\sgdm.exe %base %mine - Merge Tool:
C:\Program Files\SourceGear\Common\DiffMerge\sgdm.exe /merge /result=%merged %mine %base %theirs
示意圖：
