'How to use self-hosted fonts face using NextJS?

Fonts using NextJS

I have read different topics about how to use self-hosted fonts with NextJS.

What I got [ wait ] compiling ... when I did:

@font-face {
    font-family: 'montserrat';
    src: url('./mypath/Montserrat-Medium.woff2') format('woff2'),
        url('./mypath/Montserrat-Medium.woff') format('woff'),
        url('./mypath/Montserrat-Medium.ttf') format('truetype'),
        url('./mypath/Montserrat-Medium.svg#Montserrat-Medium') format('svg');
}

No error, or else just compiling... I've read ( stackoverflow/57590195) which says we should use a static path like

@font-face {
    font-family: 'font';
    src: url('./static/fonts/Montserrat-Medium.woff2') format('woff2');
}

but that solution does not work at all. It almost seems to work fine, because the error (or the compelling waiting) stops. But if you look closer your font is not loaded.

Then I tried fontfaceobserver, I understood quickly that the problem would be the same. Because you have to use font-face and you cannot use it with NextJS.

After I downloaded next-font I have read the doc and looked at the github exemples.

Here is my next.config.js inspired of theirs.

const withSass = require('@zeit/next-sass');
const withCSS = require("@zeit/next-css");
const withFonts = require('next-fonts');

module.exports = withFonts(
    withCSS(
        withSass({
            enableSvg: true,
            webpack(config, options) {
                config.module.rules.push({
                    test: /\.(png|jpg|gif|svg|eot|ttf|woff|woff2)$/,
                    use: {
                        loader: 'url-loader',
                        options: {
                            limit: 100000
                        }
                    }
                });
                return config;
            }
        })
    )
);

My path to fonts public/static/fonts.

And here is how I tried to use it.

...
function MainIndex() {
    ...
    return (
        <>
        ...
        <style jsx>{`
                @font-face {
                    font-family: 'Montserrat';
                    src: url('./static/fonts/Montserrat-Medium.ttf');
                }
                h1 {
                    font-family: 'Montserrat';
                }
        `}</style>
        </>
    )
}
...

Solutions I found

✗ https://github.com/bramstein/fontfaceobserver 456 KB
✗ https://github.com/rohanray/next-fonts 1.89 MB
? The dangerouslySetInnerHTML could work but it's not the best solution I guess. (I didn't try it)
✗ url('./static/fonts/font.woff2')

Solution 1:^[1]

This is what I usually do:

Put the fonts in public/static somewhere
In the same folder as the fonts put a CSS file where the fonts are declared

CSS file example /public/fonts/style.css:

@font-face {
    font-family: 'Italian No1';
    src: url('ItalianNo1-Black.eot');
    src: url('ItalianNo1-Black.eot?#iefix') format('embedded-opentype'), url('ItalianNo1-Black.woff2') format('woff2'), url('ItalianNo1-Black.woff') format('woff');
    font-weight: 900;
    font-style: normal;
}

[UPDATE] For recent versions of NextJS the proper place to import the CSS file is in an import statement in _app.js (See docs).

Older answer:

Import this css in _document.js (docs):

render() {
    return (
        <Html>
            <Head>
                <link href="/fonts/style.css" rel="stylesheet"/>
            </Head>

            <body>
                <Main/>
                <NextScript/>
            </body>
        </Html>
    )
}

Solution 2:^[2]

I have tried on the latest version of next.js "next": "10.0.8"

Added all of the fonts to public/fonts folder and used in globals.css with font faces.

I think the paths you are using in font face might not be correct but i am not sure about the structure of the code.

 @font-face {
  font-family: 'Open Sans';
  src: url('../public/fonts/OpenSans-Light.eot');
  src: url('../public/fonts/OpenSans-Light.eot?#iefix') format('embedded-opentype'),
  url('../public/fonts/OpenSans-Light.woff2') format('woff2'),
  url('../public/fonts/OpenSans-Light.woff') format('woff'),
  url('../public/fonts/OpenSans-Light.ttf') format('truetype');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

Afterwards you can use it font-family: 'Open Sans'

Here is a related blog post if you want to read more about

Solution 3:^[3]

Holy Tip: These days you need not serve multiple font files as variable fonts are widely supported by using just one file. Moreover, the newer font format woff2 has a better compression ratio and is again widely supported.

Put font file in /public/fonts/ folder
Add it to _document.tsx file so that it's fetched for all pages:

export default class MyDocument extends Document {
  render(): JSX.Element {
    return (
      <Html>
        <Head>
          <link
            rel="preload"
            href="/fonts/inter-var-latin.woff2"
            as="font"
            type="font/woff2"
            crossOrigin="anonymous"
          />
        </Head>
        ...

Mention in global CSS file:

@font-face {
    font-family: "Inter";
    font-style: normal;
    font-weight: 100 900;
    font-display: optional;
    src: url(/fonts/inter-var-latin.woff2) format("woff2");
  }

Tell browser to cache this font file for a long time (~1yr) to avoid unnecessary re-downloads for subsequent site visits.
Add headers to next.config.json:

module.exports = {
  async headers() {
    return [
      {
        source: "/fonts/inter-var-latin.woff2",
        headers: [
          {
            key: "Cache-Control",
            value: "public, max-age=31536000, immutable",
          },
        ],
      },
    ];
  },
};

Reference: https://gourav.io/blog/nextjs-cheatsheet#add-custom-fonts

Solution 4:^[4]

On v12.0.4, using tailwindcss I had to try few fs changes but landed up with the following that worked. In addition I used both custom fonts and google fonts.

You can also test w/o tailwind but testing inline global CSS:

# _app.js
<div style={{ fontFamily: "Inter"}}>
    <Component {...pageProps} />
</div>

import '../public/styles.css' # didn't work outside public/

# styles.css
# font files are in the same directory
@font-face {
    font-family: 'Avenir';
    src: url('avenir/avenir-light.woff') format('woff');
    font-weight: 100;
    font-style: normal;
}

# tailwind.config.js
    theme: {
        extend: {
            fontFamily: {
                sans: ['Avenir', 'Inter', ...defaultTheme.fontFamily.sans],
                title: ['Avenir', 'Inter', ...defaultTheme.fontFamily.sans]
            }
        }
    },

# _document.js
<Head>
    <link
        href="https://fonts.googleapis.com/css2?family=Inter&display=optional"
        rel="stylesheet"
    />
</Head>

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1
Solution 2	Hadnazzar
Solution 3
Solution 4	BisonAVC

'How to use self-hosted fonts face using NextJS?

Fonts using NextJS

Solution 1:[1]

Solution 2:[2]

Solution 3:[3]

Solution 4:[4]

Sources

Related Questions

Solution 1:^[1]

Solution 2:^[2]

Solution 3:^[3]

Solution 4:^[4]