These are some of the tools that this website depends upon (all open source or similar)

The following software are owned and licensed by other people. All are licensed under terms consistent with, or less restrictive than, the license of this website.

Typography

• Source Serif: Typeface owned by Adobe and distributed under the SIL Open Font License Version 1.1
• Source Sans: Typeface owned by Adobe and distributed under the SIL Open Font License Version 1.1
• FontAwesome: Icon typeface distributed under several open licenses
• fontTools: Python library for manipulating fonts, distributed under an MIT open-source license

Mechanics

• jQuery: JavaScrip library distributed under the MIT License
• smartquotes.js: JavaScript for updating directionless quotes distributed under the MIT license
• clipboard.js: JavaScript for copying data to clipboard distributed under the MIT license

Build system

• Node.js: Asynchronous JavaScript runtime with associated package management, distributed under a minimally restrictive license
• grunt.js: JavaScript task runner distributed under a minimally restrictive license
• Sass: CSS extension language distributed under the MIT license