vitest.dev draws its headings in APK Protocol, its body text in Inter and its code in KH Teka Mono. It uses 3 fonts in all. We measured it on November 4, 2026.
The fonts vitest.dev draws
| Font | Used for | Share of its custom-font text | Licence | How common |
|---|---|---|---|---|
| Inter | Body text | 78.9% | Open source | 126 of 845 sites (rank 1) |
| APK Protocol | Headings | 14.3% | Not verified as obtainable | – |
| KH Teka Mono | Code | 6.8% | Not verified as obtainable | – |
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.
- APK Protocol: we could not verify that this typeface can be licensed, so we neither recommend it nor link a source.
- KH Teka Mono: we could not verify that this typeface can be licensed, so we neither recommend it nor link a source.
vitest.dev among developer tools and infrastructure sites
vitest.dev is one of the 89 developer tools and infrastructure sites we measured. Across them, Inter is the most used font you can get, on 31 of the 89 (35%). All the fonts developer tools and infrastructure sites use.
What pairing does vitest.dev use?
APK Protocol for headings with Inter for body text also appears on 1 other analyzed site: vite.dev. It shows what real sites do, not a rule. All pairings.
Other developer tools and infrastructure sites we measured
- vite.dev Inter, KH Teka Mono, APK Protocol
- algolia.com Sora, Inter
- angular.dev Inter, DM Mono
- astro.build Obviously, Inter, MD IO
- circleci.com Inter
- codesandbox.io Inter
See the fonts on all 845 sites.
FAQ
What font does vitest.dev use?
vitest.dev draws its headings in APK Protocol, its body text in Inter and its code in KH Teka Mono. It uses 3 fonts in all: Inter, APK Protocol, KH Teka Mono. We measured it on November 4, 2026.
Is APK Protocol free?
We could not verify that APK Protocol can be licensed, so we do not state a licence.
What font pairing does vitest.dev use?
APK Protocol for headings and Inter for body text. The same pairing appears on 1 other analyzed site.
Can I use the same fonts as vitest.dev 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 vitest.dev. Each font's licence is on this page, from its source.
How do you know which font vitest.dev uses?
We opened vitest.dev 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.