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Designspace

A designspace is a framework set up during font development that defines how a variable font morphs as its axes change. It uses geometric interpolation to blend shapes between master drawings, while also handling glyph substitutions along the way.

Eight lowercase “a”s scattered across the frame in black, each one a different combination of weight and width — from a hairline wide form to a heavy narrow one — mapping the range of shapes a variable font's designspace can reach.

A designspace is a framework mapped out during the font development process that defines exactly how a variable font morphs when its user-facing controls change. This digital architecture uses geometric math to interpolate, or smoothly blend, the shapes between the primary font drawings, called masters, while handling complex glyph substitutions along the way.

Every single axis of variation in a font acts as a distinct physical dimension within this designspace grid. Because of this layout, selecting a specific combination of axis values is the equivalent of plotting a coordinate location in space, with each unique coordinate instantly generating a custom font instance. If a variable font includes only weight and width controls, it operates within a flat, two-dimensional designspace that contains every possible variation of those two traits. When dealing with advanced parametric typefaces that feature ten or more independent axes, the designspace shifts into a complex system of ten or more dimensions.

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About the author
Iveta Stoyanova

Iveta is the Social Media & Community Manager at Fontfabric. With a background in Rhetoric & Speech Communication, she writes about the human side of typography, the inspiration behind new typefaces, choosing the right font for your project, and font licensing.