VisualDiffer
VisualDiffer is a macOS file and folder comparison app that helps you spot changes side by side with visual diffs and filtering tools.
What is VisualDiffer?
VisualDiffer is a native macOS comparison app for checking differences between files and folders. It helps users review project changes, compare backup copies, inspect edited text, and identify added, removed, or modified items in side-by-side views. The app supports both folder comparison and line-by-line file diffing, making it useful for developers, technical users, and anyone managing versions of documents or local files. VisualDiffer also includes filtering options so you can exclude temporary files, build artifacts, or other items that are not relevant to a comparison. It integrates with Finder through a separate helper workflow and supports opening files in external editors or comparators as part of a macOS-based workflow. VisualDiffer is published by davide ficano and is offered as an open-source Mac app.
Key features
- Compare two folders side by side and highlight new, removed, modified, and unchanged items.
- Review text differences line by line to see additions, deletions, and edits clearly.
- Filter comparisons with include and exclude rules to ignore temporary or unwanted files.
- Launch comparisons from Finder using the available Services-based integration.
- Open compared files in external editors from within the app.
- Use AppleScript or the visdiff command-line tool for scripted comparison workflows.
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Mostly safe
VisualDiffer's behavior matches a file comparison utility: it works with files and folders you choose and offers optional Finder, AppleScript, and external-editor integrations. Those integrations may require helper scripts or permissions to interact with Finder and other apps, so review any added workflow or script before installing it. If you use the command-line or external app integration features, confirm the scripts came from the official VisualDiffer project and match what you expect them to do.
Recommendation: Keep VisualDiffer if you actively compare folders, source files, backups, or document versions on your Mac. If you no longer use diff tools, you can remove it without affecting macOS, though any Finder service or helper workflow you installed for VisualDiffer may also need separate cleanup.
Common paths
/Applications/VisualDiffer.app
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