Marbla
A fun variable font with three axes: inktrap, balloon, and curve.
Recursive | Recursive
Play around with this variable font available soon from Google Fonts in monospaced and sans-serif versions.
Related links
Monaspace
Five lovely monospaced variable fonts.
Mona Sans & Hubot Sans
Two new lovely open source variable fonts from Github.
Fontshare: Quality Fonts. Free.
A whole lotta nice fonts—most of them variable fonts—from Indian Type Foundry.
Roboto … But Make It Flex - Material Design
This version of Roboto from Font Bureau is a very variable font indeed.
Related posts
An nth-letter selector in CSS
The latest installment in the long tradition of calling for this pseudo-element.