React Compose: Simpler stateless components

React Compose lets you encapsulate component logic into smaller, reusable functions, which can then be combined back into components.

Botlytics: Analytics for your bots

Botlytics lets you monitor analytics for your bots, to track the conversations they have and the messages they send. It's a well-documented REST API.

Picons Thin: 1050+ Premium Vector Icons - only $29!

Fulfill all your icon needs in one shot with this amazing deal from Picons. In one low-priced Mighty Deal, you'll get over 1050 premium vector icons, broken down ...

CSS  -  UI

Driveway: Pure CSS masonry layout

Driveway is a pure CSS masonry layout aid. It was developed using stylus, and is exploring pure CSS masonry layouts.

Turntable.js: Responsive jQuery slider

Turntable.js is a responsive jQuery slider. It lets you flip through a series of images as your mouse/finger moves across a container.

Megatype: Easy typographic structure

Megatype makes it easy to create typographic structure.

Sierra: Small, light SCSS library

Sierra is a small, lightweight SCSS library. Customize grids, fonts, colors, and more.

CSS  -  UI

Flexbox Patterns: Awesome UIs with Flexbox

Flexbox Patterns gives you the tools you need to build awesome user interfaces using CSS Flexbox. It includes examples and source code.

Scrollbear: Maintain scroll position when images load

Scrollbear maintains your container scroll position when images load. It's great for blogs that use tons of images, among other uses.