GitPigeon - GitHub notifications delivered to your Mac
Sublime Text - Sublime Text is a sophisticated text editor for code, html and prose - any kind of text file. You'll love the slick user interface and extraordinary features. Fully customizable with macros, and syntax highlighting for most major languages.
Gitify - GitHub Notifications on your desktop.
Solis - A live design output that integrates with code editor
Neat.run - Neat puts SaaS notifications in your menu bar. Streamline your code review and ship with ease. Preview, triage, and jump to issues in one click or keystroke.
Code.xyz - The online code editor for building APIs in a single click.