unplugin-fonts

㊗️ Universal Webfont loader - Unfonts


This plugin goes beyond just generating font-face rules - it also takes care of link preload and prefetch, optimizing font loading for a faster and more efficient user experience.

Unfonts currently supports popular font providers like Typekit, Google Fonts, and Fontsource, as well as custom fonts. This gives you the flexibility to choose from a vast range of fonts and seamlessly integrate them into your projects.

With Unfonts, you no longer have to manually manage font files and font-face rules, or worry about slow loading times. Our package does all the heavy lifting for you, so you can focus on creating amazing content with ease.

View configuration:
- Typekit
- Google Fonts
- Custom Fonts
- Fontsource

Install

``bash
npm i --save-dev unplugin-fonts # pnpm add -D unplugin-fonts
`

---

Import generated @font-rules CSS

> Note
> Required if using custom or fontsource providers

`ts
import 'unfonts.css'
`

Providers

$3

Load fonts from Typekit.

`ts
Unfonts({
// Typekit API
typekit: {
/**
* Typekit project id
*/
id: '',

/**
* customizes the base URL for the font request
* default: 'https://use.typekit.net/'
*/
fontBaseUrl: 'https://use.typekit.net/',

/**
* enable non-blocking renderer
*
* default: true
*/
defer: true,

/**
* define where the font load tags should be inserted
* default: 'head-prepend'
* values: 'head' | 'body' | 'head-prepend' | 'body-prepend'
*/
injectTo: 'head-prepend',
},
})
`

$3

Load fonts from Google Fonts.

`ts
Unfonts({
// Google Fonts API V2
google: {
/**
* enable preconnect link injection
*
* default: true
*/
preconnect: false,

/**
* allow preconnect to be customized
* default: 'https://fonts.gstatic.com'
*/
preconnectUrl: 'https://fonts.gstatic.com',

/**
* customizes the base URL for the font request
* default: 'https://fonts.googleapis.com/css2'
*/
fontBaseUrl: 'https://fonts.googleapis.com/css2',

/**
* values: auto, block, swap(default), fallback, optional
* default: 'swap'
*/
display: 'block',

/**
* define which characters to load
* default: undefined (load all characters)
*/
text: 'ViteAwsom',

/**
* define where the font load tags should be inserted
* default: 'head-prepend'
* values: 'head' | 'body' | 'head-prepend' | 'body-prepend'
*/
injectTo: 'head-prepend',

/**
* Fonts families lists
*/
families: [
// families can be either strings (only regular 400 will be loaded)
'Source Sans Pro',

// or objects
{
/**
* Family name (required)
*/
name: 'Roboto',

/**
* Family styles
*/
styles: 'ital,wght@0,400;1,200',

/**
* enable non-blocking renderer
*
* default: true
*/
defer: true,
},
],
},
})
`

$3

Load custom fonts from files.

`ts
Unfonts({
// Custom fonts.
custom: {
/**
* Fonts families lists
*/
families: [{
/**
* Name of the font family.
*/
name: 'Roboto',
/**
* Local name of the font. Used to add src: local() to @font-rule.
*/
local: 'Roboto',
/**
* Regex(es) of font files to import. The names of the files will
* predicate the font-style and font-weight values of the @font-rule's.
*/
src: './src/assets/fonts/*.ttf',

/**
* This function allow you to transform the font object before it is used
* to generate the @font-rule and head tags.
*/
transform(font) {
if (font.basename === 'Roboto-Bold') {
// update the font weight
font.weight = 700
}

// we can also return null to skip the font
return font
}
}],

/**
* Defines the default font-display value used for the generated
* @font-rule classes.
*/
display: 'auto',

/**
* Using will trigger a request for the WebFont
* early in the critical rendering path, without having to wait for the
* CSSOM to be created.
*/
preload: true,

/**
* Using is intended for prefetching resources
* that will be used in the next navigation/page load
* (e.g. when you go to the next page)
*
* Note: this can not be used with preload
*/
prefetch: false,

/**
* define where the font load tags should be inserted
* default: 'head-prepend'
* values: 'head' | 'body' | 'head-prepend' | 'body-prepend'
*/
injectTo: 'head-prepend',
},

})
`

$3

Load fonts from Fontsource packages.

> Note
> You will need to install @fontsource/ packages.

`ts
Unfonts({
// Fontsource API
fontsource: {
/**
* Fonts families lists
*/
families: [
// families can be either strings (load default font set)
// Require the @fontsource/abeezee package to be installed.
'ABeeZee',
'Inter Variable', // Require the @fontsource-variable/inter package to be installed.
{
/**
* Name of the font family.
* Require the @fontsource/roboto package to be installed.
*/
name: 'Roboto',
/**
* Load only a subset of the font family.
*/
weights: [400, 700],
/**
* Restrict the font styles to load.
*/
styles: ['italic', 'normal'],
/**
* Use another font subset.
*/
subset: 'latin-ext',
},
{
/**
* Name of the font family.
* Require the @fontsource-variable/cabin package to be installed.
*/
name: 'Cabin',
/**
* When using variable fonts, you can choose which axes to load.
*/
variable: {
wght: true,
slnt: true,
ital: true,
},
},
],
},
})
`

Typescript Definitions

`json
{
"compilerOptions": {
"types": ["unplugin-fonts/client"]
}
}
`

or

`ts
// declaration.d.ts
///
``

Resources

- https://web.dev/optimize-webfont-loading/
- https://csswizardry.com/2020/05/the-fastest-google-fonts/
- _(unmaintained)_ https://www.npmjs.com/package/webfontloader