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LeftHandy
Left-handed mouse app for macOS
LeftHandy is a free, open-source macOS menu bar utility that programmatically mirrors all system cursors and swaps mouse buttons in real time for left-handed users. It operates completely offline with zero telemetry, zero analytics, and zero network requests. Shipped as a code-signed, notarized Universal Binary for Apple Silicon and Intel (macOS 14+).
Hey Product Hunt 👋
I built LeftHandy because using a mouse with your left hand on macOS has always felt like a second-class experience.
While macOS natively lets you swap click behaviors in System Settings, it has never provided a native way to mirror system cursors. Left-handed users are left using right-handed pointers that lean the wrong way, which is terrible for ergonomics and precision.
LeftHandy is a free and open-source menu bar utility that provides full left-handed support in one place. It programmatically mirrors all system cursors (arrows, pointers, resize handles, and crosshairs) so the tip points naturally for left-handed use, and swaps left/right clicks instantly in real-time.
The project was built using Swift and Objective-C to be extremely lightweight and responsive. Unlike other desktop tools, it has a total commitment to privacy: there is absolutely no telemetry, no tracking, and it operates entirely offline. It's packaged as a code-signed, notarized Universal Binary supporting macOS 14 Sonoma or later.
I'd love feedback from macOS left-handed users, designers, developers, and anyone who wants to improve their desktop ergonomics. What features or improvements would you like to see next?
About LeftHandy on Product Hunt
“ Left-handed mouse app for macOS”
LeftHandy was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #46 on the daily leaderboard. LeftHandy is a free, open-source macOS menu bar utility that programmatically mirrors all system cursors and swaps mouse buttons in real time for left-handed users. It operates completely offline with zero telemetry, zero analytics, and zero network requests. Shipped as a code-signed, notarized Universal Binary for Apple Silicon and Intel (macOS 14+).
On the analytics side, LeftHandy competes within Productivity, Open Source, GitHub, Menu Bar Apps and Vercel Day — topics that collectively have 775.9k followers on Product Hunt. The dashboard above tracks how LeftHandy performed against the three products that launched closest to it on the same day.
Who hunted LeftHandy?
LeftHandy was hunted by Writronic. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of LeftHandy including community comment highlights and product details, visit the product overview.
Writronic