Source Serif 4 is a free serif typeface designed by Frank Grießhammer. It is used by 1 of the 407 sites we analyzed, which ranks it joint number 54 among the 100 website fonts you can get. You can use it without paying.
Source Serif 4 at a glance
- Rank
- =54 of 100, by number of analyzed sites using it
- Used on
- 1 site of 407 analyzed (0%)
- Style
- Serif
- Designer
- Frank Grießhammer
- Licence
- Free, open source
- Added to Google Fonts
- November 16, 2021
- Source
- Google Fonts, checked October 21, 2026
Where is Source Serif 4 used?
Source Serif 4 appears on these sites but is not the largest font in headings, body copy or code on any of them. It draws labels, buttons and other smaller text.
| Industry | Sites using it | Of analyzed sites in that industry |
|---|---|---|
| Media, news and publishing | 1 | 4% |
Which websites use Source Serif 4?
Each link opens the free font finder on that site.
- ycombinator.com Media, news and publishing · 25.3% of its text
What does Source Serif 4 pair with?
No other typeface appeared with Source Serif 4 as a heading, body or code font on more than one analyzed site, so there is no repeated pairing to report.
Where do I get Source Serif 4?
Source Serif 4 is open source and free to use, including commercially. Download it from Google Fonts.
Google Fonts · checked October 21, 2026.
How do we know?
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.
Other serif fonts in the ranking
FAQ
Is Source Serif 4 free?
Yes. It is open source and free for commercial use, and available from Google Fonts.
Who designed Source Serif 4?
Source Serif 4 was designed by Frank Grießhammer. The source link on this page is where that is credited.
Which websites use Source Serif 4?
Of the 407 sites we analyzed, 1 site draw text in Source Serif 4: ycombinator.com. The list on this page links each one to the font finder.
What fonts pair well with Source Serif 4?
No other typeface appeared with Source Serif 4 as a heading, body or code font on more than one analyzed site, so there is no repeated pairing to report.
How do you know which font a site uses?
We open each site in a real browser and ask Chrome which font file it used to draw each piece of text, so renamed and self-hosted fonts are named by the file itself. Each site was measured twice, and a font counts only if both runs saw it.