Mos

A free & simple app to allow your mouse wheel to scroll smoothly on macOS.

中文 | English | Русский

Homepage

http://mos.caldis.me/

Features

Smooth out your mouse wheel and customize acceleration and easing curves.
Configure touchpad and mouse wheel independently, including per-axis smooth & reverse settings.
Simulate trackpad scrolling on a regular mouse for a continuous, touch-like experience.
New “Buttons” panel records mouse or keyboard events and binds them to system shortcuts with one click.
The “Application” module lets each app inherit or override scroll, shortcut, and button-binding rules.
Scroll and button monitors visualize live events to help with troubleshooting.

What’s new in 4.0

Preferences got a fresh redesign: PrimaryButton, table views, and popovers now feel consistent in both light and dark mode.
Button bindings persist automatically, surface duplicate recordings, and highlight existing entries for quick editing.
The shortcut catalog now includes screenshots, screen recording, space switching, and more—default mappings are smarter out of the box.
Localization moved to Xcode string catalogs; new strings for buttons and shortcuts land alongside a multilingual website refresh.
Mission Control, app switching, and other edge cases no longer break smooth scrolling, making daily use more reliable.

Download & Install

Homebrew

If you wish to install the application from Homebrew:

bash

$ brew install --cask mos@beta

The application will live at /Applications/Mos.app.

To update the app:

bash

$ brew update
$ brew upgrade mos@beta

Quit then relaunch the app.

Manual Installation

GithubRelease

Guide

Wiki

Thanks

Contributing

Feel free to submit or propose improvements to the code or to the translation of Mos in different languages. Please submit new issues through GitHub issues. If you are good at coding, please submit a PR directly!

LICENSE

CC Attribution-NonCommercial

Do not upload Mos to the App Store.