Sans serif · Sora Sagano
Aileron
Find the font. Find its kind.
CSSfont-family: 'Aileron', sans-serif; font-weight: 400; font-style: normal; line-height: 1.1;
Aileron is a free sans serif by Sora Sagano, from Fontsource. Among the 697 sans serifs on FontKind, Aileron has an x-height taller than 72%, is of average width and, at its regular weight, is of average darkness. Its thickest strokes are 1.4 times its thinnest: moderate stroke contrast.
01 / Light table
Laid on top of Hedvig Letters Sans
Aileron on one light table with its two closest fonts, Hedvig Letters Sans (84 out of 100) and Golos Text (84). Hedvig Letters Sans has nearly identical proportions; Golos Text is 7% wider, with less stroke contrast.
Aileron and Hedvig Letters Sans laid on top of each other.
Ink shared with AileronHedvig Letters Sans…
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.
02 / Letters
The Aileron 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 / Weights
Aileron in 6 weights
6 weights, 100–800, with italics
- 100 Thin, with its italic
- 300 Light, with its italic
- 400 Regular, with its italic
- 600 Semibold, with its italic
- 700 Bold, with its italic
- 800 Extra bold, with its italic
04 / Facts
Who made Aileron, and can you use it?
- Designer
- Sora Sagano
- Kind
- Sans serif
- Styles
- 6 weights, 100–800, with italics
- From
- Fontsource
- Character sets
- latin
- Licence
- CC0 1.0, public domain
Can I use it?
- Commercial use
- Yes.
- Logos
- Yes.
- Websites and apps
- Yes. Self-hosted or loaded from Fontsource.
- PDFs and documents
- Yes.
- Changes
- Yes. No conditions: it is in the public domain.
- Sharing the files
- Yes. No conditions, not even a credit.
Aileron is under the CC0 1.0, public domain. This is a plain summary, not legal advice: the licence itself decides.
Already in your apps?
- Google Docs
- Not verified. Docs adds Google Fonts, and Aileron comes from Fontsource. Google’s guide
- Word, PowerPoint
- No. Install it from Fontsource first. Microsoft’s list
- Figma
- No. Aileron comes from Fontsource: install it first. Figma’s help
- Canva
- Not verified. Search its font menu for Aileron, or upload it with Canva Pro. Canva’s help
- Cricut
- Once installed. Design Space lists Aileron under System. Fonts for Cricut →
From each app’s own font list or help pages, read on 28 September 2026.
05 / Measurements
Aileron, measured
Taken from the font file's own outlines, regular style
- x-height
- 53.0% of the emlowercase x
- Cap height
- 69.0% of the emcapitals
- x / cap
- 0.77lowercase against capitals
- Width
- 51.1% of the emaverage lowercase
- Ink
- 42%letter box filled
- Contrast
- 1.43 : 1moderate stroke contrast
Where it stands among sans serifs
Ranked against all 697 sans serifs on FontKind
x-heightLarger than 72% of sans serifs
WidthNear the middle of sans serifs
InkNear the middle of sans serifs
ContrastMore contrast than 88% of sans serifs
06 / Similar fonts
Fonts similar to Aileron
Matched letter by letter · its own family apart
- Hedvig Letters Sans84Nearly identical proportions
- Golos Text847% wider · less stroke contrast
- St. Martin8223% heavier · 5% wider
- Vend Sans82less stroke contrast · x-height 4% taller
- Miranda Sans81less stroke contrast
- Ranade7917% wider · more stroke contrast
All 100 fonts similar to Aileron →Compare side by side →Get Aileron on Fontsource
07 / Swap
Swap Aileron without a jump
Running text within 3% of the width, x-height within 5%
- Hedvig Letters Sans84text 1.9% wider · x-height 1.8% shorter
- Vend Sans82text 0.8% wider · x-height 3.8% taller
- Roboto77same text width · same x-height
- Switzer76same text width · same x-height
- Aspekta76same text width · x-height 1.8% shorter
- Ronzino75same text width · same x-height
Fallback while it loads
Until Aileron loads, this sets Arial in its place at 101% of its size, so running text keeps Aileron’s width and lines keep their height: nothing moves when it arrives.
@font-face {
font-family: 'Aileron Fallback';
src: local('Arial');
size-adjust: 101.01%;
ascent-override: 88.61%;
descent-override: 24.03%;
line-gap-override: 0.00%;
}
font-family: 'Aileron', 'Aileron Fallback', sans-serif;08 / Pairs
Used together with Aileron
Of the 1,552 home pages that load Aileron, the share that load each font too, and how that compares with chance.
Same page, not which sets the headings · HTTP Archive , 1 September 2026
- Roboto9.8%152 sites · 0.5× chance
- Open Sans6.3%97 sites · 0.3× chance
- Poppins4.5%70 sites · 0.4× chance
- Montserrat4.3%66 sites · 0.3× chance
- Inter3.7%57 sites · 0.4× chance
09 / Questions
Questions about Aileron
Answered from its licence, Fontsource and each app’s own font list
Is Aileron free for commercial use?
Yes, with no conditions at all: Aileron is in the public domain, under CC0 1.0 . Use it, change it and pass it on, commercially too, without even a credit.
How do I download and install Aileron?
FontKind doesn’t host Aileron’s files: it isn’t on Google Fonts, and comes free from Fontsource , a library of open fonts. On its page there, choose Get font, then Download complete family, and unzip the file: it holds desktop fonts for every weight and style. On Windows or a Mac, double-click each font file and choose Install. For a website, npm install @fontsource/aileron adds it in one line.
Is Aileron in Microsoft Word?
Not until you install it: Aileron isn’t one of Microsoft 365’s cloud fonts. Installed, it is in Word’s font menu and PowerPoint’s. On Windows, its weights beyond Regular and Bold show as fonts of their own, such as Aileron Thin and Aileron ExtraBold. For someone who hasn’t installed it, turn on Embed fonts in the file in Word’s save options: its licence allows that.
Is Aileron in Google Docs?
Probably not: the More fonts list in Docs draws on Google Fonts, and Aileron comes from Fontsource. Docs can’t add a font of your own, so set it in an app on your computer, such as Word, instead.
Is Aileron in Figma?
Not built in: Figma includes Google Fonts, and Aileron comes from Fontsource. Install it on your computer and Figma lists it.
How many weights does Aileron have?
Aileron comes in six weights, from Thin (100) to ExtraBold (800), each with an italic.
Who designed Aileron?
Aileron was designed by Sora Sagano.
What fonts are similar to Aileron?
The closest in our letter-by-letter match are Hedvig Letters Sans (84), Golos Text (84) and St. Martin (82), out of 100. Next to Aileron, Hedvig Letters Sans has nearly identical proportions. See all 100 fonts like Aileron.