Skip to content
fontkind.

Display · NaN (type foundry)

Rubik Lines

Case
72 px
Weight400 RegularThe only weight it comes in
0 em
1.10

Find the font. Find its kind.

CSSfont-family: 'Rubik Lines', sans-serif; font-weight: 400; font-style: normal; line-height: 1.1;

Rubik Lines is a free display font by NaN (type foundry) and Luke Prowse, on Google Fonts since 2023. Among the 554 display faces on FontKind, Rubik Lines has an average x-height, is wider than 76% and, at its regular weight, is lighter than 88%.

Compare with CAT DyFa →Compare with another font

01 / Light table

Laid on top of CAT DyFa

Rubik Lines on one light table with its two closest fonts, CAT DyFa (72 out of 100) and CAT Arena (70). CAT DyFa is 47% heavier and 12% narrower, with an x-height 8% shorter; CAT Arena is 28% narrower, with an x-height 11% shorter.

Layout
Letters
Show

Rubik Lines and CAT DyFa laid on top of each other.

Ink shared with Rubik LinesCAT DyFa…

Most different letters first; the figure is the share of ink the fonts have in common. Where the fonts agree the letters cancel to black: every white sliver is a real difference.

Open in the compare tool →

02 / Letters

The Rubik Lines alphabet

Capitals, lowercase, figures and signs · weight 400

Tap the letters you like, here and in other fonts, to find the fonts whose letters look most like them.

  • &
  • ?
  • !
  • @
  • %
  • (
  • )

03 / Sizes

Rubik Lines at every size

1 weight (400) · six sizes, in your words

  • 12 px
  • 16 px
  • 24 px
  • 36 px
  • 48 px
  • 72 px

04 / Facts

Who made Rubik Lines, and can you use it?

Designer
NaN (type foundry), Luke Prowse
Kind
Display
Styles
1 weight (400)
On Google Fonts since
2023
Character sets
cyrillic, cyrillic-ext, hebrew, latin, latin-ext, math, symbols
Licence
SIL Open Font License 1.1

Can I use it?

Commercial use
Yes.
Logos
Yes.
Websites and apps
Yes. Self-hosted or loaded from Google Fonts.
PDFs and documents
Yes.
Changes
Yes.
Sharing the files
Yes, but not for sale. With the licence.

Rubik Lines is under the SIL Open Font License 1.1. This is a plain summary, not legal advice: the licence itself decides.

What each licence allows →

Read the licence

Already in your apps?

Google Docs
Most likely. Under More fonts, in Sheets and Slides too. Google’s guide
Word, PowerPoint
No. Install it from Google Fonts first. Microsoft’s list
Figma
Yes. Built in, nothing to install. Figma’s help
Canva
Not verified. Search its font menu for Rubik Lines, or upload it with Canva Pro. Canva’s help
Cricut
Once installed. Design Space lists Rubik Lines under System. Fonts for Cricut →

From each app’s own font list or help pages, read on 28 September 2026.

How each app gets its fonts →

Get Rubik Lines on Google Fonts

05 / Measurements

Rubik Lines, measured

Taken from the font file's own outlines, regular style

Hxgp in Rubik Lines. Lines at the measured heights, as a share of the em · The parts of a letter, named
x-height
53.6% of the emlowercase x
Cap height
69.5% of the emcapitals
x / cap
0.77lowercase against capitals
Width
61.2% of the emaverage lowercase
Ink
30%letter box filled

How we measure →

Where it stands among display faces

Ranked against all 554 display faces on FontKind

  • x-heightNear the middle of display faces

  • WidthWider than 76% of display faces

  • InkLighter than 88% of display faces

07 / Swap

Swap Rubik Lines without a jump

Running text within 3% of the width, x-height within 5%

Fallback while it loads

Until Rubik Lines loads, this sets Arial in its place at 119.6% of its size, so running text keeps Rubik Lines’s width and lines keep their height: nothing moves when it arrives.

@font-face {
  font-family: 'Rubik Lines Fallback';
  src: local('Arial');
  size-adjust: 119.63%;
  ascent-override: 78.16%;
  descent-override: 20.90%;
  line-gap-override: 0.00%;
}

font-family: 'Rubik Lines', 'Rubik Lines Fallback', sans-serif;

08 / Questions

Questions about Rubik Lines

Answered from its licence, Google Fonts and each app’s own font list

Is Rubik Lines free for commercial use?

Yes. Rubik Lines is under the SIL Open Font License 1.1 , which allows commercial use at any scale, logos, websites, apps and PDFs included.

How do I download and install Rubik Lines?

FontKind doesn’t host Rubik Lines’s files: it comes free from Google Fonts . On its page there, choose Get font, then Download all, and unzip the file. It holds a single font file. On Windows or a Mac, double-click each font file and choose Install, then restart any app that was open, Word included.

Is Rubik Lines in Microsoft Word?

Not until you install it: Rubik Lines isn’t one of Microsoft 365’s cloud fonts. Installed, it is in Word’s font menu and PowerPoint’s. For someone who hasn’t installed it, turn on Embed fonts in the file in Word’s save options: its licence allows that.

Is Rubik Lines in Google Docs?

Most likely. Search for Rubik Lines under More fonts in the font menu of Docs; added there, it is in Sheets and Slides too.

Is Rubik Lines in Figma?

Yes: Rubik Lines is in Figma’s font menu, in the browser and the desktop app, with nothing to install.

How many weights does Rubik Lines have?

Rubik Lines comes in one weight, Regular (400). Ask for bold and most apps thicken the letters themselves: a faux bold, not a drawn one.

Who designed Rubik Lines?

Rubik Lines was designed by NaN (type foundry) and Luke Prowse. It has been on Google Fonts since December 2023. NaN (type foundry) also made Unbounded.

What fonts are similar to Rubik Lines?

The closest in our letter-by-letter match are CAT DyFa (72), CAT Arena (70) and Flor de Ruina (59), out of 100. Next to Rubik Lines, CAT DyFa is 47% heavier and 12% narrower, with an x-height 8% shorter. Its own family, listed apart, adds Rubik 80s Fade, Rubik Maze, Rubik Maps and 24 more. See all 100 fonts like Rubik Lines.