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How to Install DiffMerge on macOS using Homebrew

This post provides a step-by-step guide with a list of commands on how to install DiffMerge on macOS using Homebrew.

What is DiffMerge?

“DiffMerge is an application to visually compare and merge files and folders on Windows, OS X, and Linux. Diff graphically shows the changes between two files and includes intra-line highlighting and full support for editing. Merge graphically shows the changes between 3 files and allows automatic merging (when safe to do so) and full control over editing the resulting file.” ~ DiffMerge

What is Homebrew?

Homebrew is a free and open-source software package management system that simplifies the installation of software on Apple’s macOS operating system. It is known as the missing package manager for macOS.

Quick Commands

The following is the single command required to install DiffMerge on macOS using Homebrew.

$ brew cask install diffmerge

Brew Commands

This section provides a quick set of commands on how to install DiffMerge on macOS using Homebrew. It is assumed that Homebrew is already installed. If not, please follow this link.

$ brew update                           # Fetch latest version of homebrew and formula.
$ brew tap caskroom/cask                # Tap the Caskroom/Cask repository from Github using HTTPS.
$ brew search diffmerge                 # Searches all known Casks for a partial or exact match.
$ brew cask info diffmerge              # Displays information about the given Cask
$ brew cask install diffmerge           # Install the given cask.
$ brew cleanup                          # Remove any older versions from the cellar.


Congratulations! You have successfully installed DiffMerge on macOS making use of Homebrew. Follow me on any of the different social media platforms and feel free to leave comments.