IBM Plex: Free Sans, Serif and Mono Font Family
A coordinated open-source type system for interface, editorial and code typography.

Plex provides related typographic voices that can connect a product interface with documentation and marketing. Use the official specimens to compare characters before selecting the families and weights your layout needs.
Download and usage
The official site links to the IBM Plex repository and downloads. Fonts use the SIL Open Font License; include its notice when redistributing the font files.
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Public Sans: Free Open-Source Font for Digital Services
A neutral sans-serif family for readable service interfaces and editorial text.
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