slack.com draws its headings in Avant Garde For Salesforce and its body text in Salesforce Sans. It uses 2 fonts in all. We measured it on October 21, 2026.
The fonts slack.com draws
| Font | Used for | Share of its custom-font text | Licence | How common |
|---|---|---|---|---|
| Salesforce Sans | Body text | 78% | Company typeface, not verified as obtainable | – |
| Avant Garde For Salesforce | Headings | 22% | Company typeface, 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?
- Salesforce Sans: we could not verify that this typeface can be licensed, and it carries the name of the company that uses it, so we neither recommend it nor link a source.
- Avant Garde For Salesforce: we could not verify that this typeface can be licensed, and it carries the name of the company that uses it, so we neither recommend it nor link a source.
slack.com among saas and productivity sites
slack.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 slack.com use?
Avant Garde For Salesforce for headings with Salesforce Sans for body text also appears on 1 other analyzed site: salesforce.com. It shows what real sites do, not a rule. All pairings.
Other saas and productivity sites we measured
- salesforce.com Salesforce Sans, Avant Garde For Salesforce
- 1password.com Agile Sans
- airtable.com AT Season Sans
- arc.net Marlin Soft SQ, Marlin Soft ExtBlk, ABC Oracle
- asana.com TWK Lausanne
- atlassian.com Charlie
See the fonts on all 407 sites.
FAQ
What font does slack.com use?
slack.com draws its headings in Avant Garde For Salesforce and its body text in Salesforce Sans. It uses 2 fonts in all: Salesforce Sans, Avant Garde For Salesforce. We measured it on October 21, 2026.
Is Avant Garde For Salesforce free?
We could not verify that Avant Garde For Salesforce can be licensed, so we do not state a licence. It carries the name of the company that uses it, which usually means a custom house font.
What font pairing does slack.com use?
Avant Garde For Salesforce for headings and Salesforce Sans for body text. The same pairing appears on 1 other analyzed site.
Can I use the same fonts as slack.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 slack.com. Each font's licence is on this page, from its source.
How do you know which font slack.com uses?
We opened slack.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.