codesandbox.io draws its headings and body text in Inter. That is the only custom font on the page. We measured it on October 21, 2026.
The fonts codesandbox.io draws
| Font | Used for | Share of its custom-font text | Licence | How common |
|---|---|---|---|---|
| Inter | Headings, Body text | 100% | Open source | 71 of 407 sites (rank 1) |
Share is how much of the page’s custom-font text each font draws. System fonts and icon fonts are never counted. Each site was opened twice in a real browser and Chrome was asked which font file drew each piece of text. We count a font for a site only if both runs saw it and it drew at least 2% of the site’s custom-font text. The full method.
Can I use the same fonts?
- Inter is open source and free to use, including commercially. Get it from Google Fonts.
codesandbox.io among developer tools and infrastructure sites
codesandbox.io is one of the 62 developer tools and infrastructure sites we measured. Across them, Inter is the most used font you can get, on 25 of the 62 (40%). All the fonts developer tools and infrastructure sites use.
What pairing does codesandbox.io use?
codesandbox.io uses one family, Inter, for both headings and body text. So do 280 of the 407 sites we analyzed (69%). Pairings of two different fonts.
Other developer tools and infrastructure sites we measured
- algolia.com Sora, Inter
- angular.dev Inter, DM Mono
- astro.build Obviously, Inter, MD IO
- circleci.com Inter
- deno.com Inter
- digitalocean.com Inter, Plus Jakarta Sans
See the fonts on all 407 sites.
FAQ
What font does codesandbox.io use?
codesandbox.io draws its headings and body text in Inter. We measured it on October 21, 2026.
Is Inter free?
Yes. Inter is open source and free for commercial use, according to Google Fonts.
What font pairing does codesandbox.io use?
One family, Inter, for both headings and body text.
Can I use the same fonts as codesandbox.io on my own site?
Only if the licence allows it. Free and open-source fonts can be used freely. Commercial fonts need your own licence, even though you can see the file on codesandbox.io. Each font's licence is on this page, from its source.
How do you know which font codesandbox.io uses?
We opened codesandbox.io in a real browser and asked Chrome which font file drew each piece of text, twice in separate sessions. A font counts only if both runs saw it and it drew at least 2% of the site's custom-font text.
Can I check a different website?
Yes. Paste its address into the free font finder.