mui.com draws its headings in General Sans and its body text in IBM Plex Sans. It uses 2 fonts in all. We measured it on November 4, 2026.
The fonts mui.com draws
| Font | Used for | Share of its custom-font text | Licence | How common |
|---|---|---|---|---|
| IBM Plex Sans | Body text | 94.3% | Open source | 7 of 845 sites (rank =19) |
| General Sans | Headings | 5.3% | Free (commercial use OK) | – |
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?
- IBM Plex Sans is open source and free to use, including commercially. Get it from Google Fonts.
- General Sans is free to use, including commercially, under the ITF Free Font License. Get it from Fontshare.
mui.com among developer tools and infrastructure sites
mui.com is one of the 89 developer tools and infrastructure sites we measured. Across them, Inter is the most used font you can get, on 31 of the 89 (35%). All the fonts developer tools and infrastructure sites use.
What pairing does mui.com use?
General Sans for headings with IBM Plex Sans for body text does not repeat on another analyzed site, so there is no shared pairing to show. Pairings that do repeat.
Other developer tools and infrastructure sites we measured
- akamai.com Instrument Sans
- algolia.com Sora, Inter
- angular.dev Inter, DM Mono
- ansible.com Red Hat
- ant.design Alibaba Sans
- astro.build Obviously, Inter, MD IO
See the fonts on all 845 sites.
FAQ
What font does mui.com use?
mui.com draws its headings in General Sans and its body text in IBM Plex Sans. It uses 2 fonts in all: IBM Plex Sans, General Sans. We measured it on November 4, 2026.
Is General Sans free?
Yes. General Sans is free for personal and commercial use under the ITF Free Font License, according to Fontshare.
What font pairing does mui.com use?
General Sans for headings and IBM Plex Sans for body text. It does not repeat on another analyzed site.
Can I use the same fonts as mui.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 mui.com. Each font's licence is on this page, from its source.
How do you know which font mui.com uses?
We opened mui.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.