Osx GitHub Repositories (2026) · Open Source Tools

🖥 Control your display's brightness & volume on your Mac as if it was a native Apple Display. Use Apple Keyboard keys or custom shortcuts. Shows the native macOS OSDs.

Free, open-source macOS cleaner. CleanMyMac alternative with zero telemetry. Native SwiftUI, scheduled auto-cleaning, Xcode/Homebrew/system cache cleanup. MIT licensed.

Installer and automatic update framework for cross-platform desktop applications

The most popular open source electronic health records and medical practice management solution.

Parallel OS, with GUI, Terminal, OO Assembler, Class libraries, C-Script compiler, Lisp interpreter and more...

Sidetone and Battery status for Logitech G930, G533, G633, G933 SteelSeries Arctis 7/PRO 2019 and Corsair VOID (Pro) in Linux and MacOSX

Godot JVM GDExtension. Support Kotlin, Java and Scala.

Open source patternmaking software to democratize fashion.

A simple CLI for interacting with macOS reminders

git-cola: The highly caffeinated Git GUI

Publish SANE scanners to MacOS, Android, and Windows via Apple AirScan.

:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.

:package: Mac App Store command-line interface

Console-based GLSL Sandbox for 2D/3D shaders

Python app to work with pictures and associated metadata from Apple Photos on macOS. Also includes a package to provide programmatic access to the Photos library, pictures, and metadata.

Disposable webmail server (similar to Mailinator) with built in SMTP, POP3, RESTful servers; no DB required.

Light weight tool for detecting the current device and screen size written in swift.

A cross-platform image viewer which supports reading raw Luminance/YUV/RGB/ARGB/Bayer pixels data from file and rendering it.

a webapp container & site specific browser made from WebKit.swift and JavaScriptCore

macOS cleanup and security auditing tool for developers