The typeface on slack.com is Salesforce-Avant-Garde, Salesforce-Sans and NotoSansJP, loaded across 53 @font-face declarations. Every font family, weight and source on this page is read straight from the live CSS — no image guessing, no machine learning, just the rules the browser used.
The quick brown fox jumps over the lazy dog
font-family: Salesforce-Avant-Garde, Georgia, 'Times New Roman', serif;
The quick brown fox jumps over the lazy dog
font-family: Salesforce-Sans, Georgia, 'Times New Roman', serif;
The quick brown fox jumps over the lazy dog
font-family: NotoSansJP, Georgia, 'Times New Roman', serif;
The quick brown fox jumps over the lazy dog
font-family: MXiangHeHeiSCProBold, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
The quick brown fox jumps over the lazy dog
font-family: MXiangHeHeiTCBold, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
The quick brown fox jumps over the lazy dog
font-family: NotoSansKR, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
The quick brown fox jumps over the lazy dog
font-family: NotoSansSC, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
The quick brown fox jumps over the lazy dog
font-family: NotoSansTC, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
The quick brown fox jumps over the lazy dog
font-family: SeolSansHeavy, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
The quick brown fox jumps over the lazy dog
font-family: Monaco, ui-monospace, SFMono-Regular, monospace;
The quick brown fox jumps over the lazy dog
font-family: Slack-Lato, Georgia, 'Times New Roman', serif;
The quick brown fox jumps over the lazy dog
font-family: inherit!important, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
Get Font Info inspected the homepage of slack.com and parsed 8 stylesheets totalling 863.9 KB. Inside those stylesheets we found 53 @font-face declarations — the rules a browser uses to download and register a custom typeface. The primary typefaces are served from mixed, and 365 CSS rules reference them across the page.
Open the live inspector and hover any text on slack.com to see the exact font, weight, size and line-height for that element.
Open live font inspector for slack.comslack.com uses Salesforce-Avant-Garde, Salesforce-Sans and NotoSansJP as its primary typefaces. These fonts are loaded from a self-hosted webfont and an unknown source and applied across 365 CSS rules on the homepage.
slack.com loads its fonts from a self-hosted webfont and an unknown source. Get Font Info detected 53 @font-face declarations across 8 stylesheets on the live page.
slack.com loads Salesforce-Avant-Garde in 7 weights: 100, 200, 300, 400, 600, 700, 900. If you want to match the look, request the same weights from your font host so you only ship what's actually used.
Yes — once you know the font name, you can load it from the same source. If Salesforce-Avant-Garde isn't a fit (licensing, weight selection, look-and-feel), close alternatives include Inter, Manrope and DM Sans. Use the CSS snippet on this page as a starting point.
These fonts are self-hosted webfonts. They may be licensed commercially from a type foundry, custom-made for the brand, or freely available — you would need to identify the typeface and check its license at the foundry.
Compare the typography on slack.com with how other well-known sites load and use their fonts.
This page lists the fonts loaded by the homepage of slack.com. Get Font Info reads the live CSS — every @font-face rule, every font-family declaration — so you see the exact fonts the browser used, not an image-based guess.
More guides: find the font on any website, identify the typeface on a webpage, check what font a website is using, or URL font checker.