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Font Friday


The monospace typeface MD IO shown on a mobile phone in a headline, body text, a pull quote and the labels of a button and navigation. The quote says: Good typography can help your reader devote less attention to the mechanics of reading and more attention to your message. — Matthew Butterick

Monospace typeface

by Rutherford Craze from Mass-Driver

7 styles (12 planned)

6 weights: Regular to Ultra
for now only Regular Italic

License for web & app usage

Family: from $64 (web & app)

Best for

  • Headings (display text)
  • Long reading text (body text)
  • User Interfaces (functional text)


A clean monospaced typeface with beautiful ink traps, engaging italics, bringing a certain warmth to an overall technological vibe.

My thoughts on MD IO

Here and there I’m drawn to monospace fonts. Not because I like to make a big deal about my coding font – I actually don’t really care that much, since I rarely write code. I like them for the technical, rational and sober feeling they create. And I really love one, when it come with a twist, with something that breaks out of that mechanical, dry appearance. This is why I picked MD IO by Mass-Driver.

Sturdy Regular, Beautiful italics, Confident Semibold, Demonstrative Bold, Contrasting Black, Powerful Ultra
The current weights and styles of MD IO. Dear typography goddess … I love these italics!

MD IO is still in progress but with a complete character set, and available on Future Fonts. It comes in 6 weights, and for now only in Regular Italic. And this style also stole my heart! It looks like bent wire, very linear and still engaging with the long serifs (and the preview of Bold Italic is very promising, too).

In small sizes, the ink traps enhance legibility, and make letters clearer, In large sizes, they look awesome.
The ink traps are the secret sauce that give MD IO that unconventional hint

The ink traps are the part that give MD IO a warm, funky, even fuzzy feeling, by breaking the straight, and sober lines. In most cases they enhance legibility in small sizes, in some cases they are stylistic decisions. Read more about ink traps in my review of Right Grotesk.

Overall, I could image it in a user interface, where the text does not get too long, or for a little running text. As always with monospaced fonts, they don’t work for display sizes, because the word space becomes too big (you can see this in the example above as well, the sentences almost fall apart). So setting it at larger sizes will only work for some characters or one word, maximum.

What do you think? Is MD IO something for an upcoming project? Tell me in the comments below!

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  1. Oliver,
    I look forward to your emails each Friday like it is Christmas morning. Thanks for the information about ink traps. I didn’t know that term.

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