Xnapper - Take beautiful screenshots instantly
Inferno - An extremely fast React-like javascript library for building modern user interfaces.
BrandBird - Brand your Twitter content uniquely
Preact.js - Preact is a fast 3kB alternative to React with the same modern API. Components & Virtual DOM.
Supershots - Turn screenshots into supershots with gradient backgrounds
w2ui - W2UI is a small JavaScript UI library with a complete set of widgets: layout, grid, sidebar, toolbar, tabs, fields, popup, utilities.