iTerm2 is a terminal emulator for Mac OS X that does amazing things.

KeyCastr, an open-source keystroke visualizer

Staggeringly powerful macOS desktop automation with Lua

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

LuLu is the free open-source macOS firewall

MySQL/MariaDB database management for macOS

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

A window management application (replacement for Divvy/SizeUp/ShiftIt)

MySQL/MariaDB database management for macOS

A native macOS KeePass client

Prevents your Mac from going to sleep.

Managing windows size and position in OSX

ˈyːbɐˌzɪçt

A lightweight macOS window and app manager scriptable with JavaScript

Hosts file manager for OS X

Itsycal is a tiny calendar for your Mac's menu bar. http://www.mowglii.com/itsycal

⚡️ Mac app wrapping Facebook's Messenger for desktop

Cursor Manager for OSX

A gitk clone for OS X

Source code of deprecated Telegram for macos version

A stable, mature and comprehensive Objective-C library for Twitter REST API 1.1

macOS window manager with Vim–like hotkeys

Control window layout using Ctrl + Numeric Keypad on macOS

OS X application to draw a border around the focused window

A framework for window management on macOS.

A libspotify-based Spotify client for Mac OS X Lion.

A window to which other views can be "docked" to and separated into their own windows

Snapp enables drag-and-drop window management for macOS.