Magnet Window Manager - Magnet Developers
Postman - The Collaboration Platform for API Development
Stay for OS X - Keep windows in their place
StopLight - Stoplight is an API Design, Development, and Documentation platform that enables consistency, reusability, and quality in your API lifecycle, all with an easy, enjoyable developer experience.
uBar - The Dock replacement for the Mac.
Mocky.io - Mock your HTTP responses to test your REST API