Serif1 style1 language
Geo Diagonal Aperture
Sans serif · 2 styles · 159 glyphs · Version 0.3.1
Geo Diagonal Aperture is an open geometric sans for signage, interfaces and high-impact headings. Clean monoline construction with upper-right diagonal gaps. Best for signage, interfaces and high-impact headings.
Personal use: with Pro, Studio, or as one of 5 Font Pass picks ($4.99 once)Commercial license from $15/mo, yours to keep after your plan endsSee plans
Aa
CGRS6
Test
Test Geo Diagonal Aperture
Type the words you plan to use and adjust size, line height, and letter spacing. The preview uses the final font file.
The quick brown fox jumps over the lazy dog
Specimens
Specimens
Rendered from the font files, without retouching.
About
About Geo Diagonal Aperture
Its x-height is 69.6% of the cap height, near the 71.1% typical of sans serif fonts in the library, lower than 13 of the 16 other sans serif fonts. Ascenders on b, d, h, k and l line up with the capitals (100% of their height), and descenders on g, j, p, q and y drop 30.4% of the cap height below the baseline, deeper than 12 of the 16 other sans serif fonts. It sets wide: an average lowercase letter, spacing included, is 114.5% as wide as the capitals are tall (an average capital, 115.2%), 17.9% more than the median for sans serif fonts, so the same words take a longer line. The o is wider than it is tall, 1.17 to 1, and M and W are the widest capitals, at 1.12 times the width of H. The O stops 4.5% of the cap height short of H and stands 4.6% above the baseline.
The letters stand upright, with no measurable slant. Vertical stems measure 8.9% of the cap height, lighter than 8 of the 16 other sans serif fonts. Ink covers 16.2% of each lowercase letter's box (its advance width by the cap height), lighter than 15 of the 16 other sans serif fonts. Strokes keep one thickness in every direction: the sides of o and O measure the same as their tops and bottoms. Geo Diagonal Aperture comes in Regular and Bold; Bold puts down 22% more ink than Regular.
Its 159 characters include 116 Latin letters, plus 43 figures, punctuation marks and symbols; 64 of the Latin letters are accented or special forms beyond A to Z. The word space measures 55.7% of the cap height, and the blank space either side of a lowercase letter takes up 35.6% of its width. The font carries no kerning, so spacing comes from each letter’s own side bearings. All ten figures share one width, so columns of numbers line up.
Measured from the version 0.3.1 font file. Comparisons are with the 314 library fonts measured on October 2, 2026, 17 of them sans serif fonts.
Characters
Characters
Includes all 95 printable Basic Latin characters and 159 glyphs in total.
Verified language coverage: English (Basic Latin)
- Structure
- Continuous geometric strokes with diagonal open apertures cut into bowls and joins
- Stroke
- Clean monoline construction with upper-right diagonal gaps
- Best for
- Signage, interfaces and high-impact headings
Basic Latin · 94
- !
- "
- #
- $
- %
- &
- '
- (
- )
- *
- +
- ,
- -
- .
- /
- 0
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- :
- ;
- <
- =
- >
- ?
- @
- A
- B
- C
- D
- E
- F
- G
- H
- I
- J
- K
- L
- M
- N
- O
- P
- Q
- R
- S
- T
- U
- V
- W
- X
- Y
- Z
- [
- \
- ]
- ^
- _
- `
- a
- b
- c
- d
- e
- f
- g
- h
- i
- j
- k
- l
- m
- n
- o
- p
- q
- r
- s
- t
- u
- v
- w
- x
- y
- z
- {
- |
- }
- ~
Download
Download
Choose the license that matches your project before downloading.
Download
This font is part of the Pro library: it downloads with Pro or Studio, or as one of the five picks of a Font Pass.
Commercial use
Client work, products and redistribution need a commercial license. Library fonts include it with Pro or Studio; fonts you make include it when you make them on Pro, Studio or a Font Pass.
TTF · OTF · WOFF · WOFF2
See plans and Font PassRead the full font licenseTools
Do more with Geo Diagonal Aperture
Free tools that run in your browser. Images you make with them, such as a signature PNG, can be used for any purpose.
- Make a font like thisDescribe the style and get your own font in the direction of Geo Diagonal Aperture, private on paid plans.
- Check languagesSee which of 54 languages a font can write and exactly which letters are missing.
- Convert font filesTurn TTF or OTF into WOFF2 for the web, or back again. Files never leave your device.
- Compare with your fontsDrop in your own font files and set them next to library fonts.
Pairings
Fonts to pair with Geo Diagonal Aperture
A different structure keeps a pairing readable: set one font for headings and the other for text. Test both with your own words.
Serif1 style1 language
Script1 style1 language
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FAQ
Geo Diagonal Aperture questions
- Can I use Geo Diagonal Aperture commercially?
- Geo Diagonal Aperture is part of the Pro library. Pro and Studio include it with a commercial license that continues after the plan ends; a Font Pass can pick it as one of 5 fonts for personal use.
- Which languages does Geo Diagonal Aperture support?
- Geo Diagonal Aperture has 159 glyphs, including all 95 printable Basic Latin characters. Its 159 characters include 116 Latin letters, plus 43 figures, punctuation marks and symbols; 64 of the Latin letters are accented or special forms beyond A to Z. Verified language coverage: English (Basic Latin). Missing a language? Customize the font and add it in Studio.
- How do I install Geo Diagonal Aperture?
- On Windows, right-click the TTF or OTF file and choose Install. On a Mac, double-click it and click Install Font. For a website, upload the WOFF2 file and load it with @font-face. Restart open apps so they see the new font.
- Can I change letters in Geo Diagonal Aperture?
- Yes. Customize makes a copy in your account and opens it in Studio, where you can redraw letters, adjust spacing, add Bold or Thin and add languages. The library version of Geo Diagonal Aperture stays unchanged.
- Can I make my own font like Geo Diagonal Aperture?
- Yes. Describe the sans serif style you want in the generator, or upload a picture of lettering you like, and AI draws a complete installable font. Fonts made on a paid plan stay private.







