trello.com draws its headings and body text in Charlie. That is the only custom font on the page. We measured it on October 21, 2026.
The fonts trello.com draws
| Font | Used for | Share of its custom-font text | Licence | How common |
|---|---|---|---|---|
| Charlie | Headings, Body text | 100% | 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?
- Charlie: we could not verify that this typeface can be licensed, so we neither recommend it nor link a source.
trello.com among saas and productivity sites
trello.com is one of the 44 saas and productivity sites we measured. Across them, Inter is the most used font you can get, on 14 of the 44 (32%). All the fonts saas and productivity sites use.
What pairing does trello.com use?
trello.com uses one family, Charlie, for both headings and body text. So do 280 of the 407 sites we analyzed (69%). Pairings of two different fonts.
Other saas and productivity sites we measured
- atlassian.com Charlie
- loom.com Charlie
- 1password.com Agile Sans
- airtable.com AT Season Sans
- arc.net Marlin Soft SQ, Marlin Soft ExtBlk, ABC Oracle
- asana.com TWK Lausanne
See the fonts on all 407 sites.
FAQ
What font does trello.com use?
trello.com draws its headings and body text in Charlie. We measured it on October 21, 2026.
Is Charlie free?
We could not verify that Charlie can be licensed, so we do not state a licence.
What font pairing does trello.com use?
One family, Charlie, for both headings and body text.
Can I use the same fonts as trello.com 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 trello.com. Each font's licence is on this page, from its source.
How do you know which font trello.com uses?
We opened trello.com 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.