Carrd lets you build one-page sites for pretty much anything, whether it's a personal profile, a landing page to capture emails, or something more elaborate. It's simple, responsive, and totally free.
Bubble is web development framework and a visual programming tool. It enables non-technical people to build production-ready web and mobile apps without code.
Startup Framework 2.0 is a tool that allows you to create a beautiful and responsive website in under 60 minutes.