Open Sans


Open Sans is a humanist sans-serif typeface designed by Steve Matteson, commissioned by Google and released in 2011. It is based on his previous Droid Sans design, designed for Android mobile devices, but slightly wider.
Featuring wide apertures on many letters and a large x-height, the typeface is highly legible on screen and at small sizes. It belongs to the humanist genre of sans-serif typefaces, with a true italic. As of July 2018 it is the second most served font on Google Fonts, with over four billion views per day on more than 20 million websites.

Use

Open Sans is popular in flat design-style web design.
Open Sans is used in some of Google's web pages as well as its print and web advertisements. It is used as Mozilla's default typeface for websites until 2019, and in the Telegram Desktop app. It is the official font of the UK's Labour, Co-operative, and Liberal Democrat parties. Chase Bank uses Open Sans as its primary font for print, branches, TV, Web, and mobile apps.
Used in WordPress 3.8 which was released on December 12, 2013.

Development

According to Google, it was developed with an "upright stress, open forms and a neutral, yet friendly appearance" and is "optimized for legibility across print, web, and mobile interfaces." Its design is similar to that of Matteson's Droid Sans, created as the first user interface font for Android phones, but with wider characters and the inclusion of italic variants. Explaining the different name, Matteson has said "Droid was intentionally narrow for mobile screens but it didn’t have ‘narrow’ in the name. Open Sans isn’t really ‘extended’ so that wasn’t really an option either. A new family name is the direction they chose."

Unicode support

The character repertoire contains 897 glyphs, covering the Latin, Greek and Cyrillic alphabets with a wide range of diacritics.
In January 2014 Israeli type designer Yanek Iontef released an extension font covering the Hebrew alphabet with support for Niqqud for early access. The extension font went on to become popular and to be used by prominent institutions such as Tel Aviv University in its 2016 rebranding, and by the Haaretz website.

Derivatives

Open Sans has five weights, each of them with an italic version, totaling ten versions. It has a number of stylistic alternates, such as a seriffed capital 'I' and a selectable choice between a single and double-story 'g'. Numbers can be set as tabular or proportional lining figures or as proportional text figures.

Open Sans Condensed

Open Sans Condensed has three styles: light, bold and light italic.

Open Serif

designed as a companion slab serif typeface the Open Serif family. This family, not open-source, is sold by Steve Matteson.