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Free alternatives toAeonik Mono

Set in Fragment Mono, its closest free match

The closest free alternative to Aeonik Mono is Fragment Mono, 83% alike by measurement, free from Google Fonts. Overpass Mono and iA Writer Mono come next.

  • PaidCoType Foundry
  • Measuredon cotypefoundry.com, 23 October 2026

The six closest.

  1. 01

    The quick brown fox jumps over the lazy dog. Typography is what language looks like.

    Fragment Mono

    83%

    Close matchGoogle Fonts · SIL Open Font License

    • 3% taller x-height
    • Same width
    • Same weight
    • Same stroke contrast
    Get Fragment Mono ↗
  2. 02

    The quick brown fox jumps over the lazy dog. Typography is what language looks like.

    Overpass Mono

    83%

    Close matchGoogle Fonts · SIL Open Font License

    • Same x-height
    • Same width
    • Same weight
    • Same stroke contrast
    Get Overpass Mono ↗
  3. 03

    The quick brown fox jumps over the lazy dog. Typography is what language looks like.

    iA Writer Mono

    81%

    Close matchOpen source · SIL Open Font License

    • Same x-height
    • Sets 3% narrower
    • Same weight
    • Same stroke contrast
    Get iA Writer Mono ↗
  4. 04

    The quick brown fox jumps over the lazy dog. Typography is what language looks like.

    iA Writer Duo

    80%

    Close matchOpen source · SIL Open Font License

    • Same x-height
    • Same width
    • Same weight
    • Same stroke contrast
    Get iA Writer Duo ↗
  5. 05

    The quick brown fox jumps over the lazy dog. Typography is what language looks like.

    DM Mono

    79%

    Close matchGoogle Fonts · SIL Open Font License

    • 3% shorter x-height
    • Sets 3% narrower
    • Same weight
    • Same stroke contrast
    Get DM Mono ↗
  6. 06

    The quick brown fox jumps over the lazy dog. Typography is what language looks like.

    Atkinson Hyperlegible Mono

    79%

    Close matchGoogle Fonts · SIL Open Font License

    • 3% shorter x-height
    • Same width
    • Same weight
    • Same stroke contrast
    Get Atkinson Hyperlegible Mono ↗

Measured, side by side.

Aeonik Mono against Fragment Mono, from the letters themselves. These numbers are why Fragment Mono comes first, and what the CSS below corrects for.

Proportions in em, at the same font size
Ascender0.700.73Cap height0.700.70x-height0.510.52Descender0.210.22
Letter widths, a to z: what decides where lines break
abcdefghijklmnopqrstuvwxyz
Weight+3%
Stroke contrast+10%

Aeonik Mono Fragment Mono

Keep your line breaks.

Swap Aeonik Mono for Fragment Mono and nothing reflows. This sets Fragment Mono at Aeonik Mono’s x-height and line length, so headings, buttons and paragraphs break where they did.

Aeonik Mono → Fragment Mono
font-family: "Fragment Mono", monospace;
font-size: 0.973em; /* down to Aeonik Mono’s x-height */
letter-spacing: 0.019em; /* to Aeonik Mono’s line length */

About Aeonik Mono

Aeonik Mono is a paid monospace, published by CoType Foundry.

See Aeonik Mono on cotypefoundry.com ↗

Paid fonts like Aeonik Mono

Questions, answered.

What is the best free alternative to Aeonik Mono?

Fragment Mono. Measured letter by letter, it’s 83% alike: 3% taller x-height, same width, same weight, same stroke contrast. Overpass Mono, iA Writer Mono, iA Writer Duo, DM Mono and Atkinson Hyperlegible Mono are also close.

Is there a free version of Aeonik Mono?

No. Aeonik Mono is a paid monospace from CoType Foundry. 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. Aeonik Mono was measured as cotypefoundry.com 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 Fragment Mono change my layout?

Not if you use the CSS on this page. It sets Fragment Mono 2.7% smaller with a touch more letter-spacing, so text written for Aeonik Mono keeps its x-height and its line lengths, and lines break in the same places.

Spot Aeonik Mono 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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