Monospace · Designer not listed
Caesium
Find the font. Find its kind.
CSSfont-family: 'Caesium', monospace; font-weight: 400; font-style: normal; line-height: 1.1;
Caesium is a free monospace font, from its maker’s repository on GitHub. Among the 99 monospaced fonts on FontKind, Caesium has an x-height taller than 71%, is narrower than 64% and, at its regular weight, is darker than 80%. Its thickest strokes are 1.1 times its thinnest: nearly even strokes.
01 / Light table
Laid on top of Cascadia Mono
Caesium on one light table with its two closest fonts, Cascadia Mono (63 out of 100) and Cascadia Code (63). Cascadia Mono is 14% heavier; Cascadia Code is 14% heavier.
Caesium and Cascadia Mono laid on top of each other.
Ink shared with CaesiumCascadia Mono…
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 Caesium 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
Caesium in 7 weights
7 weights, 150–700, with italics
- 150, with its italic
- 200 Extra light, with its italic
- 300 Light, with its italic
- 400 Regular, with its italic
- 500 Medium, with its italic
- 600 Semibold, with its italic
- 700 Bold, with its italic
04 / Facts
Can you use Caesium?
- Designer
- Not listed
- Kind
- Monospace
- Styles
- 7 weights, 150–700, with italics
- From
- GitHub
- Character sets
- latin
- Licence
- SIL Open Font License 1.1
Can I use it?
- Commercial use
- Yes.
- Logos
- Yes.
- Websites and apps
- Yes. Self-hosted.
- PDFs and documents
- Yes.
- Changes
- Yes, under another name. Not as “Caesium”: the licence reserves the name.
- Sharing the files
- Yes, but not for sale. With the licence.
Caesium is under the SIL Open Font License 1.1. 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 Caesium comes from its maker’s repository on GitHub. Google’s guide
- Word, PowerPoint
- Not verified. Install it from its maker’s repository on GitHub first. Microsoft’s list
- Figma
- Not verified. Search its font menu, or install it. Figma’s help
- Canva
- Not verified. Search its font menu for Caesium, or upload it with Canva Pro. Canva’s help
- Cricut
- Once installed. Design Space lists Caesium under System. Fonts for Cricut →
From each app’s own font list or help pages.
05 / Measurements
Caesium, measured
Taken from the font file's own outlines, regular style
- x-height
- 53.3% of the emlowercase x
- Cap height
- 69.3% of the emcapitals
- x / cap
- 0.77lowercase against capitals
- Width
- 58.6% of the emaverage lowercase
- Ink
- 41%letter box filled
- Contrast
- 1.12 : 1nearly even strokes
Where it stands among monospaced fonts
Ranked against all 99 monospaced fonts on FontKind
x-heightLarger than 71% of monospaced fonts
WidthNarrower than 64% of monospaced fonts
InkDarker than 80% of monospaced fonts
ContrastNear the middle of monospaced fonts
06 / Similar fonts
Fonts similar to Caesium
Matched letter by letter · its own family apart
- Cascadia Mono6314% heavier
- Cascadia Code6314% heavier
- 0xProto546% wider · x-height 3% taller
- Monaspace Argon526% wider · more stroke contrast · x-height 4% shorter
- B612 Mono5111% wider · 16% lighter · x-height 5% taller
- PT Mono49x-height 6% shorter · 12% lighter
All 100 fonts similar to Caesium →Compare side by side →Get Caesium on GitHub
07 / Swap
Swap Caesium without a jump
Running text within 3% of the width, x-height within 5%
- Cascadia Mono63same text width · x-height 2.9% shorter
- Cascadia Code63same text width · x-height 2.9% shorter
- Rec Mono47text 2.4% wider · x-height 1.1% taller
- Fira Code46text 2.4% wider · x-height 1.3% shorter
- Fira Mono46text 2.4% wider · x-height 1.2% shorter
- JuliaMono43text 2.4% wider · x-height 3.1% taller
Fallback while it loads
Until Caesium loads, this sets Courier New in its place at 97.6% of its size, so running text keeps Caesium’s width and lines keep their height: nothing moves when it arrives.
@font-face {
font-family: 'Caesium Fallback';
src: local('Courier New');
size-adjust: 97.63%;
ascent-override: 95.22%;
descent-override: 32.81%;
line-gap-override: 0.00%;
}
font-family: 'Caesium', 'Caesium Fallback', monospace;08 / Questions
Questions about Caesium
Answered from its licence, GitHub and each app’s own font list
Is Caesium free for commercial use?
Yes. Caesium is under the SIL Open Font License 1.1 , which allows commercial use at any scale, logos, websites, apps and PDFs included; a changed version may not be called “Caesium”.
How do I download and install Caesium?
Caesium comes free from its maker’s repository on GitHub . On its repository there, choose Code, then Download ZIP, and unzip the file: the fonts are in its exported/static folder. On Windows or a Mac, double-click each TTF or OTF file and choose Install, then restart any app that was open. The web fonts this page uses load from its repository, through jsDelivr, as does its licence file .
Is Caesium in Google Docs?
Probably not: the More fonts list in Docs draws on Google Fonts, and Caesium comes from its maker’s repository on GitHub. Docs can’t add a font of your own, so set it in an app on your computer, such as Word, instead.
How many weights does Caesium have?
Caesium comes in seven weights, from 150 to Bold (700), each with an italic.
What fonts are similar to Caesium?
The closest in our letter-by-letter match are Cascadia Mono (63), Cascadia Code (63) and 0xProto (54), out of 100. Next to Caesium, Cascadia Mono is 14% heavier. See all 100 fonts like Caesium.