Great design doesn't have to carry a licence fee. Some of the most recognisable typefaces in the world are commercial, and their pricing reflects their fame. But for every Helvetica there is an open-source twin that captures the same character — matched not by marketing claims but by the measurements that define a letter: x-height, stem weight, stroke contrast and width. Here are ten of the most-requested swaps, with the free fonts that pull them off.
Helvetica → Inter, Roboto, Arimo, Archivo
Helvetica by Linotype / Monotype is a paid typeface. Its closest free stand-ins in the library are Inter Roboto Arimo Archivo, ranked by measured letter shapes — a free alternative that comes closest to Helvetica's silhouette at reading sizes. Each is licensed under the SIL Open Font License, so you can use it commercially without paying or attributing.
Proxima Nova → Montserrat, Mulish, Nunito Sans, Hind
Proxima Nova by Mark Simonson Studio is a paid typeface. Its closest free stand-ins in the library are Montserrat Mulish Nunito Sans Hind, ranked by measured letter shapes — a free alternative that comes closest to Proxima Nova's silhouette at reading sizes. Each is licensed under the SIL Open Font License, so you can use it commercially without paying or attributing.
Gotham → Montserrat, Jost, Poppins
Gotham by Hoefler & Co. is a paid typeface. Its closest free stand-ins in the library are Montserrat Jost Poppins, ranked by measured letter shapes — a free alternative that comes closest to Gotham's silhouette at reading sizes. Each is licensed under the SIL Open Font License, so you can use it commercially without paying or attributing.
Futura → Jost, Poppins, Questrial, Didact Gothic
Futura by Linotype / Paratype is a paid typeface. Its closest free stand-ins in the library are Jost Poppins Questrial Didact Gothic, ranked by measured letter shapes — a free alternative that comes closest to Futura's silhouette at reading sizes. Each is licensed under the SIL Open Font License, so you can use it commercially without paying or attributing.
Avenir → Nunito Sans, Montserrat, Mulish
Avenir by Linotype is a paid typeface. Its closest free stand-ins in the library are Nunito Sans Montserrat Mulish, ranked by measured letter shapes — a free alternative that comes closest to Avenir's silhouette at reading sizes. Each is licensed under the SIL Open Font License, so you can use it commercially without paying or attributing.
DIN → Archivo, Barlow, Saira
DIN by Monotype is a paid typeface. Its closest free stand-ins in the library are Archivo Barlow Saira, ranked by measured letter shapes — a free alternative that comes closest to DIN's silhouette at reading sizes. Each is licensed under the SIL Open Font License, so you can use it commercially without paying or attributing.
Adobe Garamond → EB Garamond, Cormorant Garamond, Crimson Pro
Adobe Garamond by Adobe is a paid typeface. Its closest free stand-ins in the library are EB Garamond Cormorant Garamond Crimson Pro, ranked by measured letter shapes — a free alternative that comes closest to Adobe Garamond's silhouette at reading sizes. Each is licensed under the SIL Open Font License, so you can use it commercially without paying or attributing.
Didot → Playfair Display, Prata, Bodoni Moda
Didot by Linotype is a paid typeface. Its closest free stand-ins in the library are Playfair Display Prata Bodoni Moda, ranked by measured letter shapes — a free alternative that comes closest to Didot's silhouette at reading sizes. Each is licensed under the SIL Open Font License, so you can use it commercially without paying or attributing.
Rockwell → Roboto Slab, Zilla Slab, Arvo
Rockwell by Monotype is a paid typeface. Its closest free stand-ins in the library are Roboto Slab Zilla Slab Arvo, ranked by measured letter shapes — a free alternative that comes closest to Rockwell's silhouette at reading sizes. Each is licensed under the SIL Open Font License, so you can use it commercially without paying or attributing.
How we choose a "free twin"
We match the commercial face against the entire 1,935-font library using four normalised metrics: relative x-height (how tall lowercase letters are against capitals), stem weight (how heavy the vertical strokes are), stroke contrast (the difference between thick and thin), and average letter width. Fonts that score close on all four share a silhouette; fonts that only share a genre don't. Where several faces tie, we prefer the one already proven in similar pairings — for example, Montserrat for Gotham or Inter for Helvetica.
When a free twin isn't the answer
Free twins are excellent for websites, apps, reports, presentations and most marketing. They are not the originals, and for a brand whose wordmark is legally registered in a specific typeface — or for high-end print where the exact letterforms matter — the correct move is to licence the real thing. The alternative finder links to the foundry page for exactly that case. What free twins eliminate is the default decision to either rip off a design or downgrade it because the licence is unaffordable.
Find the rest of the list
These ten are the most searched, but the directory covers 60 commercial faces — including Circular, Avenir, Graphik, Bodoni, Caslon, Baskerville, Trajan and more. Browse the free font alternative finder to see them all, and when you spot a font in the wild that might be commercial, run it through the font finder and it will suggest the free stand-in automatically.