Sketch Repo - Collection of resources for anyone who uses Sketch
Anima App - Design, get feedback, convert to code, publish, iterate.
Fluid for Sketch - Sketch plugin to make your responsive designs more efficient
Auto-Layout for Sketch - Responsive design for Sketch
Marvel - Turn sketches, mockups and designs into web, iPhone, iOS, Android and Apple Watch app prototypes.
Sketch Isometric Plugin - Generate isometric views from artboards and rectangles