Beautiful.ai applies the rules of great design in real-time. Just add content and your slides adapt like magic. No resizing text or images. Ever. Every choice you make saves you time and leads to great design. Just tell your story, and we’ll make it beautiful.

A web browser that aids responsive web app development. Preview all target screens in a single window side-by-side. Brings down your development time. Use your already-familiar dev-tools from the browser. No additional learning curve!

Responsivize is an open-source desktop app that you can use to develop responsive websites! In the app, you can test your web apps on popular iPhones, Android phones, iPads, MacBooks, and you can even set custom dimension devices!