Description: MathJax is an open source JavaScript display engine for mathematics that works in all browsers. It allows you to include math equations and formulas on your website that will render beautifully cross-browser.
Type: software
Pricing: Open Source
Description: Travis CI is a hosted continuous integration service used to build, test, and deploy software projects hosted at GitHub. It is free for open source projects.
Type: software
Pricing: Freemium