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Inter 4.0 screenshot
Category:Typography
Pricing:Free

What it costs

Free tier
Yes

Inter is a free open-source typeface (SIL Open Font License); posters are sold separately in the author's shop.

Auto-checked on 8 August 2026Source

About Inter 4.0

What Is Inter 4.0?

Inter 4.0 is a free, open-source typeface family designed for screen-based applications, from user interfaces to marketing materials and signage. As a variable font with extensive language support covering 147 languages and over 2000 glyphs, Inter provides designers and developers with a versatile typography tool that adapts across different sizes and weights. The latest version represents a significant update to the original Inter typeface, introducing features that expand its usability beyond its initial focus as a UI-specific font.

What Inter 4.0 Does

  • Offers true italic variants alongside roman typefaces, providing more expressive emphasis options for body text compared to slanted alternatives
  • Includes an optical sizing axis that automatically adjusts letter shapes, x-height, and spacing based on font size, optimizing readability from small interface text to large display headlines
  • Provides 10 font weights ranging from Thin (100) to Black (900), with dedicated glyph designs at weights 100, 400, and 900 for consistent quality
  • Features OpenType capabilities including contextual alternates, tabular numbers, slashed zero, and stylistic alternates for precise typographic control
  • Supports variable font technology, allowing continuous adjustment across weight and optical size axes for refined typographic control

How Inter 4.0 Can Be Used

  • Interface design: Create legible UI elements at smaller sizes with optimized spacing and contrast details
  • Headings and display type: Use optical sizing presets to render titles and headlines at 24 pixels and beyond with refined letter spacing and proportions
  • Long-form reading text: Apply true italics for emphasis in body copy and extended text-heavy layouts
  • Multi-language projects: Deploy consistent typography across 147 languages with comprehensive glyph coverage
  • Web and digital signage: Leverage variable font capabilities to reduce file sizes while maintaining design flexibility across responsive breakpoints

Who Is Inter 4.0 For?

Inter 4.0 serves product designers, UI/UX developers, and web developers who need a flexible, professionally-crafted typeface for digital projects. It is particularly useful for teams building interfaces, web applications, and marketing websites that require consistent typography across multiple sizes and languages. While Inter 4.0 maintains its strength as a UI typeface, the expanded optical sizing and true italic support now make it viable for projects requiring body text and display-sized headlines. Anyone working in digital design who values precision typographic control and open-source licensing will find Inter 4.0 a capable foundational typography tool. Visit Inter 4.0

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