jasper.ai draws its headings in Feature Headline and its body text in ABC ROM. It uses 2 fonts in all. We measured it on October 21, 2026.
The fonts jasper.ai draws
| Font | Used for | Share of its custom-font text | Licence | How common |
|---|---|---|---|---|
| ABC ROM | Body text | 88.1% | Commercial | 1 of 407 sites (rank =54) |
| Feature Headline | Headings | 11.9% | 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?
- ABC ROM is sold under a commercial licence by Dinamo Typefaces. Licence it from Dinamo Typefaces; copying the file from a site that uses it is not a licence.
- Feature Headline: we could not verify that this typeface can be licensed, so we neither recommend it nor link a source.
jasper.ai among ai sites
jasper.ai is one of the 31 ai sites we measured. Across them, Inter is the most used font you can get, on 3 of the 31 (10%). All the fonts ai sites use.
What pairing does jasper.ai use?
Feature Headline for headings with ABC ROM for body text does not repeat on another analyzed site, so there is no shared pairing to show. Pairings that do repeat.
Other ai sites we measured
- anthropic.com Anthropic Sans Text, Anthropic Serif Text
- bolt.new Schibsted Grotesk
- character.ai Open Sans, At Hauss
- cursor.com Cursor Gothic, Berkeley Mono, EB Garamond
- deepmind.google Google Sans Flex
- descript.com Booton
See the fonts on all 407 sites.
FAQ
What font does jasper.ai use?
jasper.ai draws its headings in Feature Headline and its body text in ABC ROM. It uses 2 fonts in all: ABC ROM, Feature Headline. We measured it on October 21, 2026.
Is Feature Headline free?
We could not verify that Feature Headline can be licensed, so we do not state a licence.
What font pairing does jasper.ai use?
Feature Headline for headings and ABC ROM for body text. It does not repeat on another analyzed site.
Can I use the same fonts as jasper.ai 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 jasper.ai. Each font's licence is on this page, from its source.
How do you know which font jasper.ai uses?
We opened jasper.ai 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.