Description: Ninja UI is an open-source user interface design and prototyping tool for web applications and websites. It allows designers and developers to rapidly create wireframes, prototypes, mockups and hi-fidelity designs.
Type: software
Pricing: Open Source
Description: Purecss is an open-source CSS framework that provides lightweight styles and layout options for quickly building responsive web pages. It focuses on modular, customizable components without excess code.
Type: software
Pricing: Open Source