Hello

The Inter font family

Inter is a typeface specially designed for user interfaces with focus on high legibility of small-to-medium sized text on computer screens.

The family features a tall x-height to aid in readability of mixed-case and lower-case text. Several OpenType features are provided as well, like contextual alternates that adjusts punctuation depending on the shape of surrounding glyphs, slashed zero for when you need to disambiguate "0" from "o", tabular numbers, etc.

More samples ->

How do I use it?

Using the font is as easy as downloading & installing on your computer.

You're free to bundle copies of Inter with your software, even if it's commercial and you charge money for your software. Inter can also be used on the web by either hosting the font files yourself or by including this CSS:

@import url('https://rsms.me/inter/inter.css');
html { font-family: 'Inter', sans-serif; }
@supports (font-variation-settings: normal) {
  html { font-family: 'Inter var', sans-serif; }
}

 

Dynamic Metrics

Size dp = spacing em

There's of course no absolute right or wrong when it comes to expressing yourself with typography, but Inter Dynamic Metrics provides guidelines for good typography. You simply provide the optical font size, and the tracking and leading is calculated for you to produce the best results.

Learn more…

 

How much does it cost?

Inter is a free and open source font family.
You are free to use this font in almost any way imaginable.
Refer to the SIL Open Font License 1.1 for exact details on what the conditions and restrictions are.

Weights & Styles

There are nine weights, each with italic counterparts, making a total of 18 styles.

Variable

Inter is offered as both traditional constant font files (one per style, e.g. Bold Italic, Medium, etc.) as well as a Variable Font file which contains all styles in a much smaller file size. Additionally, a variable font is ...variable! You can mix and match weight and italic angle as you please, forming theoretically infinite variations.

Variable Fonts not supported by this web browser

ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890 ?!()[]{}&*^%$#@~

Variable fonts is a new technology and support is somewhat in flux at the time of writing this (fall 2018.) This test can be used to discover what a web browser is capable of.

Features

Inter comes with many OpenType features that can be used to tailor functionality and aesthetics to your specific needs. Some of these features can be combined to form a great number of alternative variations.

Contextual alternates calt

This feature is enabled by default and causes certain characters to adjust themselves or be replaced depending on the surrounding context.

Disabled Enabled 12:34, FEX 12:34, FE—X 4.2 4.2 (SEMI)PERMANENT (SEMI)PERMANENT SFO -> STO SFO -> STO IIA —> OGG IIA —> OGG ARN <--> OGG ARN <--> OGG M@N [email protected] [email protected] [email protected] Smile :-) Smile :-)

/* calt is enabled by default */

There are many more contextual alternates.

Tabular numbers tnum

Fixed-width numbers are useful for tabular data, where comparing columns across rows is desired.

Disabled Enabled 1234567890 1234567890 1131711  1131711  0040900  0040900  11:31,711  11:31,711  00:40.900  00:40.900  0.45, 0.91, +0.08  0.45, 0.91, +0.08  1.00, 9.44, −0.13  1.00, 9.44, −0.13  0.00, 1.13, ~7.12  0.00, 1.13, ~7.12 

font-feature-settings: 'tnum' 1

Numerators numr

Disabled Enabled Hello 0123 Hello 0123

font-feature-settings: 'numr' 1

Denominators dnom

Disabled Enabled Hello 0123 Hello 0123

font-feature-settings: 'dnom' 1

Superscript sups

Disabled Enabled X0123 (+)-[=] X0123 (+)-[=] Xabcdefghijklmnopqrstuvwxyz Xabcdefghijklmnopqrstuvwxyz

font-feature-settings: 'sups' 1

Subscript subs

Disabled Enabled H0123 (+)-[=] H0123 (+)-[=] Xabcdefghijklmnopqrstuvwxyz Xabcdefghijklmnopqrstuvwxyz

font-feature-settings: 'subs' 1

Fractions frac

This feature is contextually sensitive and will convert "words" of numbers separated by forward slash into proper fractions. This feature is dynamic and allows for any fractions. Note that the digits used for fractions are custom-made for their small size, and are even made separately from the slightly larger Superscript and Subscript numbers.

Disabled Enabled 1/3  3/4  1/5  1337/5910 1/3  3/4  1/5  1337/5910

font-feature-settings: 'frac' 1

Case alternates case

Switches out some glyphs to work better with capital letters and numbers.

Disabled Enabled (Hello) [World] {9000} (Hello) [World] {9000} SCHOOL @ RUN SCHOOL @ RUN 3 + 9 = 12 * 1 3 + 9 = 12 * 1 *+÷±×=≠≈•~<>≤≥ *+÷±×=≠≈•~<>≤≥ - : → ← ⟶ ⟵ − - – — :

font-feature-settings: 'case' 1

Stylistic set 1: Alternate digits ss01

An alternate style of digits. Note that individual digit styles can be cherry-picked using the cvXX features.

Disabled Enabled 1234567890 1234567890 13469 13469

font-feature-settings: 'ss01' 1

Stylistic set 2: Disambiguation ss02

Alternate glyph set that increases visual difference between similar-looking characters.

Disabled Enabled WP0ACO9XSI1012O9 WP0ACO9XSI1012O9 Illegal Illegal βeta ßeta Busineß βeta ßeta Busineß

font-feature-settings: 'ss02' 1

Discretionary ligatures dlig

Alternate glyph set that increases visual difference between similar-looking characters.

Disabled Enabled ¡¿What?! ¡¿What?! ¿¡What!? ¿¡What!?

font-feature-settings: 'dlig' 1

Slashed zero zero

Disabled Enabled O0123 O0123

font-feature-settings: 'zero' 1

Character variants cvXX

Allows cherry-picking alternate characters.

Feature Disabled Enabled cv01 1 1 cv02 4 4 cv03 6 6 cv04 9 9 cv05 l ł ƚ ɫ ɬ ŀ ĺ ļ ľ ḷ ḹ ḻ ḽ l ł ƚ ɫ ɬ ŀ ĺ ļ ľ ḷ ḹ ḻ ḽ cv06 r ɽ ɍ ɼ ŕ ŗ ř ȑ ȓ ṙ ṛ ṝ ṟ r ɽ ɍ ɼ ŕ ŗ ř ȑ ȓ ṙ ṛ ṝ ṟ cv07 ß ß cv08 I Ï Ḯ Ɨ Ḭ Ì Í Î Ĩ Ī Ĭ Į İ Ǐ Ȉ Ȋ Ỉ Ị Ι Ί Ϊ Ἰ Ἱ Ἲ I Ï Ḯ Ɨ Ḭ Ì Í Î Ĩ Ī Ĭ Į İ Ǐ Ȉ Ȋ Ỉ Ị Ι Ί Ϊ Ἰ Ἱ Ἲ cv09 3 3 cv10 G Ǥ Ɠ Ĝ Ğ Ġ Ģ Ǧ Ǵ Ḡ G Ǥ Ɠ Ĝ Ğ Ġ Ģ Ǧ Ǵ Ḡ

font-feature-settings: 'cv10' 1

Additional features, not highlighted above: locl, salt, aalt, ccmp, cpsp and ordn.
You can explore features in the interactive lab.

 

The story behind Inter

Inter started out in late 2016 as an experiment to build a perfectly pixel-fitting font at a specific small size (11px.) The idea was that by crafting a font in a particular way, with a particular coordinate system (Units Per EM), and for a particular target rasterization size (11), it would be possible to get the best of both sharpness and readability.

However after a few months of using an early version of Inter, it dawned on everyone exposed to the test that this approach had some serious real-world problems. Most notably that it was really hard to read longer text. Because of the pixel-aligning nature of that approach, the font took an almost mono-spaced appearance, making it really easy to read numbers, punctuation and very short words, but eye-straining to read anything longer.

The project was rebooted with a different approach, sticking with the specific UPM, but crafting glyphs and kerning in a way that made for more variation in the rhythm and smoother vertical and horizontal stems. As Inter was being developed, it was tested on an internal version of Figma—where the author of Inter works as a designer—and slowly improved upon based on experience and feedback.

 

FAQ

@rsms