Retool - Build custom internal tools in minutes.
Code4Startup - Learn Ruby on Rails, Python, AngularJS, NodeJS, React, Ionic by cloning AirBnb , TaskRabbit, Tinder, Product Hunt, Fiverr and . more.
Anvil.works - Build seriously powerful web apps with all the flexibility of Python. No web development experience required.
Bloc.io - Learn to code and become a web developer in Ruby on Rails, HTML, CSS, Javascript, and jQuery in Bloc's Intense Online Web Development Apprenticeship.
Decisions - Decisions offers tools to define workflow automation and business rules.
GoSkills - GoSkills offers bite-sized business courses.