The quick brown fox jumps over the lazy dog
Free font
Titan One
A free alternative to Cooper Black.
About Titan One
Titan One is Rodrigo Fuenzalida's fat rounded display sans — inflated, bouncy letterforms with a sticker-like finish and almost no counter space to spare. It's built for one job and does it at maximum volume: short words, large sizes, high energy. The rounded terminals and slightly irregular baseline keep it from reading as merely heavy.
It occupies the same candy-wrapper register Cooper Black holds on confectionery packaging, though as a rounded sans it drops Cooper's blurred-serif signature entirely — the mood carries over, the details don't. Against Feather it's a closer structural match, with the same ultra-bold rounded build suited to big, bouncy callouts of the kind Duolingo uses Feather for. Free through Google Fonts.
- Designer
- Rodrigo Fuenzalida
- Available at
- Google Fonts →
Titan One is also a free alternative to…
- Cooper Black → Fat, rounded, and bouncy — the same candy-wrapper register Cooper Black occupies on Tootsie Roll packaging. It's a rounded sans, though, so the blurred-serif signature is entirely absent.
- Eska → A single heavy weight with soft, inflated forms and tight spacing, the closest match for Eska's round, chunky display character. It leans more toward uniform roundness, without the uneven 1970s bounce of Eska's original drawings.
- Feather → A rounded ultra-bold display face with a sticker-like, inflated quality — great for the big, bouncy callouts Duolingo uses Feather for.
- Peace Sans → An ultra-heavy sans with soft, rounded corners that delivers the same attention-grabbing mass as Peace Sans at poster sizes. Its shapes are blockier and more squared-off, with tighter counters, giving it a bolder, more compressed look compared with the smoother curves of Peace Sans.
Display + body that work together
The shape of a working week
Two thousand years of letterforms boil down to a handful of decisions — width, weight, proportion. Pick a pair you trust, and let the rest take care of itself.
Letters that hold their nerve
Crisp, even strokes give the display its punch. Quiet serifs underneath stay readable across thousands of words — used together by editors at the kind of paper that still prints corrections.
Display · Editorial Titan One + Source Serif 4