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

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

Send User Notifications on macOS from the command-line.

Prevents your Mac from going to sleep.

ˈyːbɐˌzɪçt

Install and debug iPhone apps from the command line, without using Xcode

Mac Media Keys for the Masses

Per-device scrolling prefs on macOS.

Control Google Chrome from the command line

Finder Toolbar app to open the current directory in the Terminal

A native Mac app wrapper for WhatsApp Web

ControlPlane - context-sensitive computing for OS X

a Cocoa GUI for /etc/hosts

A command line tool to manipulate tags on Mac OS X files, and to query for files with those tags.

Media Key Forwarder for iTunes and Spotify

Add a global delay to Command-Q to stop accidental app quits.

Email tracker, read receipt and spy pixel blocker plugin for macOS Mail (10.11-13.x)

VLC for iOS/iPadOS and tvOS official mirror

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

📂 macOS Finder toolbar app to open current folder in Visual Studio Code

KisMAC is a free, open source wireless stumbling and security tool for Mac OS X.

CloudyTabs is a simple menu bar application that lists your iCloud Tabs.

BlockBlock provides continual protection by monitoring persistence locations.

OverSight monitors a mac's mic and webcam, alerting the user when the internal mic is activated, or whenever a process accesses the webcam.

Like AutoRuns ...but for macOS!

Malware and other applications may install persistent keyboard "event taps" to intercept your keystrokes. ReiKey can scan, detect, and monitor for such taps!

WhatsYourSign adds a menu item to Finder.app. Simply right-, or control-click on any file to display its cryptographic signing information!

Unirest in Objective-C: Simplified, lightweight HTTP client library.