Guiffy review
A broad desktop diff and merge tool for teams working across encodings and version-control systems.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Guiffy is desktop software for visually comparing files, merging changes, and comparing folders or file trees. It is aimed at development and configuration-management teams that need two-way or three-way file merging, conflict detection, and support across Windows, macOS, and Linux. The product also provides command-line interfaces and an API, making it suitable for teams that want to connect comparison and merge workflows with applications or automation.
Its main strength is breadth. Guiffy's SureMerge component supports three-way merging with conflict detection and editing, while folder and file-tree comparison extends the workflow beyond individual files. Git integration is available through Git mergetool, and the product also integrates with SVN, ClearCase, and Perforce. HTML comparison reports add a shareable output option, while support for more than 150 file encodings makes the tool relevant to teams handling varied file formats or internationalized content. The command-line interface and API further support integration into existing technical processes.
Guiffy is a strong fit for teams that need broad version-control compatibility, cross-platform desktop software, and a combination of visual tools with automation interfaces. The published product details identify separate Pro and eXpert editions and a 21-day downloadable evaluation, but do not establish plan-by-plan pricing. Buyers should also weigh the announced closure of Guiffy Software, Inc. and the planned product end-of-life on December 31, 2026. Teams seeking a tool for longer-term adoption should consider that lifecycle constraint before choosing Guiffy; teams with an immediate need for its specific merge scope, integrations, and encoding coverage may find its feature breadth relevant.
Guiffy pros and cons
- Where it wins
- Three-way merging with conflict detection and editing
- Git, SVN, ClearCase, and Perforce integrations
- More than 150 file encodings across Windows, macOS, and Linux
- Where it doesn't
- No free plan is available
- Desktop-focused platform support may not fit browser-based workflows
- Product end-of-life is planned for December 31, 2026
Guiffy fact sheet, pricing and score →
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