Topstyle - TopStyle contains powerful tools for building standards-compliant web sites.
Tips.how - A place to share small tips on any topic
EnjoyCSS - CSS generator for rich graphical styles without coding
Muzli - UI/UX and Design Inspiration Chrome Extension
Rapid CSS Editor - Rapid CSS editor is quick, powerful and easy to use HTML and CSS code editor for web developers. Intuitive interface and intelligent features help you become more productive and create modern HTML5 and CSS3 based websites faster and easier.
Material Up - Curates the best of Material Design inspiration, tools and freebies.