CORE FEATURES ARE FREE
- Compare files and folders
- Edit selected changes in two-way comparison
- Work through a three-way merge
CORE FEATURES ARE FREE
WinMerge Alternative for Mac
Looking for a WinMerge-style comparison workflow on Mac? MergeDock is an independent native macOS app. Start with free core file comparison, two-way editing and three-way merge; Pro adds optional features through a one-time purchase.
Core features are free to use. Pro is an optional one-time upgrade. Requires macOS 26 or later.
WinMerge
WinMerge on Windows, MergeDock on Mac
WinMerge is a free, open-source Windows tool with text, folder and image comparison. MergeDock is a separate macOS app: file and folder comparison, two-way editing and three-way text merge are free. The main choice is the operating system and the specific features you use, not simply free versus paid.
Compare and merge for free
Basic file and folder comparison, two-way editing and three-way merge are free to use. A comparison only shows the differences until you choose a change or save a result.
Additional features with Pro
Folder Sync preview is free. Pro unlocks execution of the sync plan and advanced image views.
- Run a Folder Sync plan
- Use overlay, slider, blink and difference views
Features and licensing compared
| Comparison point | WinMerge | MergeDock |
|---|---|---|
| Supported OS | Windows. | macOS 26 or later. |
| Text comparison and merge | Two- and three-way comparison, text editing and merging. | Two-way editing and three-way text merge are free. |
| Folder comparison | Recursive folder comparison and copying between folders. | Comparison and selected-item copying are free. Running Folder Sync requires Pro. |
| Image comparison | Image comparison, overlays and highlighted differences. | Side-by-side is free. Overlay, slider, blink and difference views require Pro. |
| License and payment | Free and open source under the GNU GPL. | Free core features, with an optional one-time Pro in-app purchase. |
Official sources WinMerge: Features · WinMerge: Folder comparison manual · WinMerge: LicensingInformation checked on 2026-09-27.
MergeDock is an independent product. It is not affiliated with, endorsed by, or an official port of WinMerge.
When MergeDock may fit
MergeDock may fit when you want a native Mac workspace for local file or folder comparison, while keeping core comparison and merge work free.
Questions before you switch
Is MergeDock a Mac version of WinMerge?
No. MergeDock is an independent macOS app, not a Mac edition or official port of WinMerge. Windows-specific settings and extensions do not transfer automatically.
What can I do for free?
Basic file and folder comparison, two-way editing and three-way merge are free. Additional features, including running Folder Sync and advanced image comparison, require Pro.
Which features require Pro?
Running Folder Sync and advanced image comparison require Pro. Pro is an optional one-time in-app upgrade; check the in-app purchase screen for current pricing in your region.