Add to ChromeBraveFree alternatives toABC Otto
The closest free alternative to ABC Otto is Radley, 85% alike by measurement, free from Google Fonts. Libre Baskerville and Spectral come next.
ABC Otto, by Sam de Groot & Laura Opsomer Mironov for Dinamo. Measured on abcdinamo.com, October 23rd, 2026.
The six closest.
- 01
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Radley
85%Near twinGoogle Fonts · SIL Open Font License
- 9% shorter x-height
- Sets 8% narrower
- Same weight
- Same stroke contrast
- 02
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Libre Baskerville
77%Close matchGoogle Fonts · SIL Open Font License
- 9% taller x-height
- Sets 9% wider
- Same weight
- Same stroke contrast
- 03
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Spectral
77%Close matchGoogle Fonts · SIL Open Font License
- 7% shorter x-height
- Sets 6% narrower
- Same weight
- Less stroke contrast
- 04
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Besley
77%Close matchGoogle Fonts · SIL Open Font License
- 7% taller x-height
- Sets 6% wider
- Same weight
- Same stroke contrast
- 05
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Fraunces
75%Close matchGoogle Fonts · SIL Open Font License
- 3% shorter x-height
- Same width
- Same weight
- Same stroke contrast
- 06
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Redaction
74%Same spiritOpen source · SIL Open Font License
- 3% shorter x-height
- Sets 7% narrower
- Same weight
- More stroke contrast
Measured, side by side.
ABC Otto against Radley, from the letters themselves. These numbers are why Radley comes first, and what the CSS below corrects for.
ABC Otto Radley
Keep your line breaks.
Swap ABC Otto for Radley and nothing reflows. This sets Radley at ABC Otto’s x-height and line length, so headings, buttons and paragraphs break where they did.
font-family: "Radley", serif;
font-size: 1.104em; /* up to ABC Otto’s x-height */
letter-spacing: -0.007em; /* to ABC Otto’s line length */About ABC Otto
ABC Otto is a paid serif designed by Sam de Groot & Laura Opsomer Mironov, published by Dinamo.
See ABC Otto on abcdinamo.com ↗Questions, answered.
What is the best free alternative to ABC Otto?
Radley. Measured letter by letter, it’s 85% alike: 9% shorter x-height, sets 8% narrower, same weight, same stroke contrast. Libre Baskerville, Spectral, Besley, Fraunces and Redaction are also close.
Is there a free version of ABC Otto?
No. ABC Otto is a paid serif from Dinamo. Every alternative on this page is free for commercial use, under the SIL Open Font License.
How were these alternatives chosen?
By measuring the letters, not by comparing names or tags. ABC Otto was measured as abcdinamo.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.
Will Radley change my layout?
Not if you use the CSS on this page. It sets Radley 10.4% larger with a touch less letter-spacing, so text written for ABC Otto keeps its x-height and its line lengths, and lines break in the same places.
Spot ABC Otto in the wild?
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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