Tools & Projects

DKIM Key Checker

Lookup and verify a DKIM TXT record and determine its public key length to detect the use of weak cryptographic keys.

This tool has been used over 2 million times since it was launched, helping domain administrators improve their email authentication, and globally reduce sender address forgery (spoofing), which is often used in spam emails and phishing attacks.


Making design inclusive. A design communication tool that syncs with Slack. Launched on Product Hunt. Acquired by InVision.


Interactive icons made for the modern web. A new way of thinking about icons, their structure, aesthetic and abilities. Originally launched and funded via Kickstarter. Acquired by InVision.


A fast, caching, dynamic inline SVG DOM injection library. Unlock the full potential of SVG. This project has 1k+ Stars on GitHub.

Sonic Earth

Data visualization of USGS earthquake data. This projected was started at Science Hack Day San Francisco 2014 with Dr. Matt Bellis.


Building Description Language (BDL) Parser and WebGL 3D Visualizer.


A toolkit for working with, styling and converting SVG files.