Animate.css
The ultimate CSS tools for web designers | CSSmatic
Gradient generator, border radius, noise and box shadow
geuis/helium-css · GitHub
Helium is a tool for discovering unused CSS across many pages on a web site
kswedberg/jquery-smooth-scroll · GitHub
Cross browser smoothscrolling
Ultimate CSS Gradient Generator - ColorZilla.com
Useful to generate IE 6-98 and 9 gradients (filter or svg)
WebPagetest - Website Performance and Optimization Test
ProtoFluid - HTML5 and CSS3 Web App Prototyping
Test your @media queries and web app on various screen sizes
WriteMaps Site Map Application.
Create, edit, and share your sitemaps online