What the work is
Inter is a neo-grotesque sans-serif typeface released in 2017 as a free and open-source variable font.
How it was made
Inter was designed in 2016 by Rasmus Andersson at Figma to improve on-screen UI readability—especially at small sizes—by optimising x-height and aperture openness, while initially retaining Roboto’s vertical metrics. It evolved into a variable font with optical size and weight axes, true italics, and rich OpenType features.
What works
Inter works because its tall x-height and open apertures directly improve character distinction at small sizes on screens, and its variable weight axis (100–900) enables smooth, file-efficient typographic scaling without discrete font files.
What does not
Inter does not solve all UI text problems: its tall x-height and open apertures trade off against typographic rhythm in dense long-form reading, and its optical size axis requires implementation support that many environments lack.
What it influenced
Inter influenced the design of subsequent UI typefaces—including system fonts in major OSes and web frameworks—that prioritise variable font technology, optical sizing, and open-source licensing for interface use.
Is it worth your time
Yes. Inter delivers measurable, screen-specific legibility gains through deliberate, testable decisions—not aesthetic novelty—and its open-source adoption across interfaces makes it a functional benchmark for digital typography.