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By Sebastien Hayez. Published August 14, 2024

Variable Font

Variable font: OpenType toolbox

Typography has undergone many revolutions over more than a century: lead typesetting, Linotype, Monotype, phototypesetting, digital, and so on. This latest technology has made its latest turnaround, seeking to reduce the number and weight of files for unprecedented flexibility and efficiency.

Historically, typography has been constrained by the limitations of static font files expressing separate criteria: its slant (roman, italic), its width (from compressed to extended), and also its weight (hairline to extra black). This resulted in a proliferation of font files and complexity in managing typographic variations.

The concept of variable fonts traces back to 1994 when TrueType GX, a font technology developed by Apple, introduced the idea of multiple font variations within a single font file. However, it wasn't until the early 2010s that the concept gained significant traction within the type design community, probably because OpenType font files became the norm.

In 2016, major type foundries and software developers collaborated to propose the OpenType Font Variations format, laying the groundwork for standardized variable font technology. This initiative aimed to streamline font management and improve typographic flexibility across different platforms and devices.

The year 2016 marked a significant milestone with the release of the first variable font prototypes and demonstrations, showcasing the potential of this technology to revolutionize typography. As momentum grew, type designers and developers embraced variable fonts as a game-changing advancement in digital typography.

In 2017, the Variable Font Format specification was officially ratified by the OpenType Working Group, cementing its status as an integral part of the OpenType font format. This standardization paved the way for widespread adoption of variable fonts across various design applications and digital platforms.

Since then, variable fonts have continued to evolve, with ongoing advancements in technology and adoption by designers and developers worldwide. Today, variable fonts are recognized as a fundamental tool for typographic innovation, offering designers unprecedented flexibility, efficiency, and creative freedom in font design and usage.

The benefits of variable fonts for designers are manifold:

1. Flexibility

Variable fonts offer designers unprecedented control over typographic elements. They can dynamically adjust font attributes like weight, width, and slant, allowing for fine-tuned customization to suit specific design requirements.


2. Efficiency

By consolidating multiple font styles into a single file, variable fonts streamline the design process and reduce the need for managing numerous font files. This results in faster workflow and improved productivity for designers.


3. Web performance

Web Performance: Variable fonts contribute to enhanced web performance by reducing the number of font files required for a web project. This leads to faster load times and smoother rendering, ultimately improving user experience and engagement on websites.


4. Creative Freedom

Variable fonts unleash a new level of creative expression for designers. They enable fluid transitions between font styles, facilitate experimentation with custom variations, and inspire innovative typographic designs that push the boundaries of creativity.


5. Versatility

Variable fonts are highly adaptable across various platforms and devices, making them ideal for responsive design projects. They ensure consistent typography across different screen sizes and resolutions, without sacrificing visual quality or performance.


6. Hybrid Fonts

Variable fonts allow designers to create hybrid font families that combine multiple styles or genres into a single font file. Designers can blend characteristics from different typefaces, such as serif and sans-serif, script and display, or traditional and experimental, to create unique and distinctive typographic voices. In a nutshell, the type designer is now designing a system and not only shapes.


7. Optical Adjustments

Variable fonts enable designers to incorporate optical adjustments into their typefaces, ensuring optimal legibility and aesthetic quality across different sizes and viewing conditions. Designers can fine-tune font outlines, spacing, and other parameters to optimize readability and visual appearance at various text sizes.


Overall, variable fonts offer type designers a vast playground for creativity and experimentation, empowering them to push the boundaries of typographic design and craft innovative typefaces that inspire and delight audiences. With their unparalleled flexibility and versatility, variable fonts represent a new frontier in digital typography, driving forward the evolution of visual communication in the digital age.

Learn more

History of variable type, part 1 and 2.

Short presentation of the Variable font.

Google font entries on Variable fonts.