KeyCastr, an open-source keystroke visualizer

Staggeringly powerful macOS desktop automation with Lua

Darwin/macOS emulation layer for Linux

The Git interface you've been missing all your life has finally arrived.

LuLu is the free open-source macOS firewall

Mac app that shows all open files, directories, sockets, pipes and devices in use by all running processes. Nice GUI for lsof.

A software update framework for macOS

MySQL/MariaDB database management for macOS

A native macOS KeePass client

Send User Notifications on macOS from the command-line.

A fast and clever hex editor for macOS

Manage your Homebrew formulas with style using Cakebrew.

A lightweight macOS window and app manager scriptable with JavaScript

💀 Mac app to block your own access to distracting websites etc for a predetermined period of time. It can not be undone by the app or by a restart – you must wait for the timer to run out.

Hosts file manager for OS X

Official frugal and native macOS Syncthing application bundle

Clean and simple clipboard manager for developers

A simple and fast text editor

SOGo is a very fast and scalable modern collaboration suite (groupware). It offers calendaring, address book management, and a full-featured Webmail client along with resource sharing and permissio…

Textual is an IRC client for OS X

A KeePass/Password Safe Client for iOS and OS X

Add new abilities to the macOS keep-awake utility, Amphetamine.

The GNUstep Base Library is a library of general-purpose, non-graphical Objective C objects.

The best fork of the best lightweight, visual git client for macOS.

Monal for XMPP (iOS and macOS)

Adium is an open source and free instant messaging application for macOS that can connect to XMPP (Jabber), IRC and more.