Base UI Sketch Framework - Huge set of everything you need to design and prototype
Carrd - Simple, responsive one-page site creator.
INSTAD.IO - Automagically converts vector images into sketchy style
Startup Framework - Create a beautiful, responsive website in under an 1 hour
Graphcool - The GraphQL backend for mobile & web developers to build better apps faster ⚡️
Front-End Checklist - The perfect Front-End Checklist for modern websites 🗂