Here is a flat design user interface inspired to a PSD freebie by GraphicBurger. This HTML5 + CSS3 ready-coded template is not complete yet.
Responsive Flat UI kit is a ready coded HTML custom UI set built to work with and sit next to Bootstrap 3. Created by Catalin Rosu.
Responsive Flat UI kit – HTML
Flat UI Free is an awesome HTML UI kit containing a lot of useful web elements for your web projects. It has been made with Bootstrap.
Free PSD & HTML Flat UI kit
A feature-packed user interface kit containing buttons, input fields, sliders, progress bars, and various other form elements. It’s also fully coded for you in CSS and HTML.
