The closest free alternative to Darby Sans is Commissioner, 79% alike by measurement, free from Google Fonts. Lato and Proza Libre come next.
Darby Sans, by Paul Barnes & Dan Milne for Commercial Type. Measured on commercialtype.com, October 23rd, 2026.
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Close matchGoogle Fonts · SIL Open Font License
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Close matchGoogle Fonts · SIL Open Font License
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Close matchGoogle Fonts · SIL Open Font License
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Same spiritGoogle Fonts · SIL Open Font License
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Same spiritGoogle Fonts · SIL Open Font License
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Same spiritGoogle Fonts · SIL Open Font License
Darby Sans against Commissioner, from the letters themselves. These numbers are why Commissioner comes first, and what the CSS below corrects for.
Darby Sans Commissioner
Swap Darby Sans for Commissioner and nothing reflows. This sets Commissioner at Darby Sans’s x-height and line length, so headings, buttons and paragraphs break where they did.
font-family: "Commissioner", sans-serif;
font-size: 1.009em; /* up to Darby Sans’s x-height */Darby Sans is a paid sans serif designed by Paul Barnes & Dan Milne, published by Commercial Type.
See Darby Sans on commercialtype.com ↗Commissioner. Measured letter by letter, it’s 79% alike: same x-height, same width, same weight, less stroke contrast. Lato, Proza Libre, DM Sans, Instrument Sans and Belleza are also close.
No. Darby Sans is a paid sans serif from Commercial Type. Every alternative on this page is free for commercial use, under the SIL Open Font License.
By measuring the letters, not by comparing names or tags. Darby Sans was measured as commercialtype.com, October 23rd draws it: its proportions, the width of every letter and figure, its weight, its stroke contrast and the shapes of telling letters like a, g, R and Q. The same measurements were taken of 1,506 free fonts, and these came closest. Each match was then checked by eye.
Not if you use the CSS on this page. It sets Commissioner 0.9% larger, so text written for Darby Sans keeps its x-height and its line lengths, and lines break in the same places.
Point Fontsight at any text on any website. It names the font, and offers a free look-alike you can try on the page, line breaks intact.
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