Fluid for Sketch - Sketch plugin to make your responsive designs more efficient
myCompiler - Run your favourite programming languages online
Anima App - Design, get feedback, convert to code, publish, iterate.
CodeChef IDE - CodeChef IDE is a free online tool for developers helping them in writing codes and programs.
Git Sketch Plugin - Version control for designers
Browxy - Browxy is a web application that serves as an integrated development environment where you can write in coding languages, compile them or edit them.