Averia Sans Libre
Google Fonts · Dan Sayers · 2012

The sans-serif branch of the Averia family, averaging multiple grotesques into gently imperfect, characterful letterforms.
About
Averia Sans Libre shares the Averia project's core concept but draws exclusively from sans-serif source material, producing a softer, rounder result than a conventional grotesque. Its three weights provide enough range for simple typographic hierarchies in informal contexts such as children's publishing, quirky web projects, or casual branding. It remains a novelty rather than a serious text face.
Classification
Averia Sans Libre applies the algorithmic averaging process specifically to sans-serif typefaces, producing letterforms with subtly inconsistent stroke weights and a softened, approachable quality. It retains the characteristic blurriness of the Averia family.