Two variable, open source fonts from GitHub.

… an open-source, privacy-first web font platform designed to put privacy back into the internet. With a zero-tracking and no-logging policy, Bunny Fonts helps you stay fully GDPR compliant and puts your user's personal data into their own hands.

The iconic font designed for use with Twitter Bootstrap Home → http://fortawesome.github.com/Font-Awesome/

The Google Font Directory lets you browse all the fonts available via the Google Font API. All fonts in the directory are available for use on your website under an open source license and are served by Google servers.

the most well-made, free & open-source, @font-face ready fonts