UI framework designed for theming
Salesforce Lightning design system
The most reliable HTML, CSS, and JavaScript simple admin template
Modern CSS framework based on Flexbox
A design system for building faithful recreations of old UIs
A free web kits for fast web design and development
Create spec for developers and teammates
Gapless, draggable grid layouts
HTML/CSS/JS and Markdown Playground For Web Designers and Developers
Material Design Components in HTML/CSS/JS
Responsive single UI/UX website design with Media query [psd-to-html]
Responsive Web Design with template Bootstrap3 free download
A graphical Finite State Machine (FSM) designer.
generate multi page html web forms for easy download to web server
Rapidly create HTML5 mobile web enterprise applications in .NET
PHP class that separates programming from presentation using templates