Xnapper - Take beautiful screenshots instantly
Inferno - An extremely fast React-like javascript library for building modern user interfaces.
Pika.style - A free tool to quickly convert screenshots into beautiful website and device mockups. You can create customizable images for App Store, Instagram, and more
Preact.js - Preact is a fast 3kB alternative to React with the same modern API. Components & Virtual DOM.
Screely - Screely instantly generates dribbble-ready images. Simply upload your screenshot and we'll do the rest.
w2ui - W2UI is a small JavaScript UI library with a complete set of widgets: layout, grid, sidebar, toolbar, tabs, fields, popup, utilities.