Great tool for testing nth-child and nth-of-type. Just enter your nth number and it will change as you type.

A photoshop extension that doubles the scale of your design with one click. Good for working on retina displays.

SVG icons library for the web

Unsplash :: Free hi-resolution photos

Nutcache – Simple and free invoicing

CSS Specificity

PSD Validator

Learn how to code

Tinycon – A small library for manipulating the favicon

Join the icons font revolution

Light-weight and clear way to dynamically restructure HTML

Just delete me…

Give n’ Go pair

A guide to using Github

Unsuck It

Online Code Editor

Create GIF from video (Mac only)

Compatibility tables for support of HTML5, CSS3, SVG and more in desktop and mobile browsers

% of mobile users that can use that feature