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External diff tool guide

P4Merge

Perforce visual diff and merge tool for comparing file versions, resolving conflicts, and reviewing images in developer workflows.

Category
Desktop GUI
License
Free from Perforce
Platforms
Windows, macOS, Linux

Best for

Teams already using Perforce or anyone who wants a free dedicated GUI for text, image, and conflict review.

Strengths

  • Good visual merge workflow
  • Image comparison support
  • Natural fit for Perforce users

Limitations

  • Perforce branding and ecosystem assumptions
  • Less broad than full comparison suites
  • Setup with Git may require configuration

Key features

File diff
Three-way merge
Image comparison
Conflict resolution

Install notes

Download P4Merge from Perforce Helix Core Apps.