Oh, did you want to add some icons?

There are a few ways to add icons when using React. The easiest way is to use Dynamic Icon Importing which automatically imports the icons you're using - and only the icons you're using. But you can choose other methods that allow you to explicitly add individual icons or add icons to a global library.

Dynamic Icon Importing

Dynamic Icon Importing eliminates the need to declare individual icons, saving you time adding icons and tracking down unused icons. This work is based on javascripter's babel macro plugin

Install the Babel Macros

First, you'll install the babel macros using npm or yarn:

npm install babel-plugin-macros

yarn add babel-plugin-macros

Set Up the Babel Configs

Next, you'll need to configure the babel plugins. Add the following to your babel.config.js file:

module.exports = function (api) {
  return {
    plugins: ['macros'],
  }
}

Then, create a babel-plugin-macros-config.js and add the fontawesome-svg-core settings. You can set the license to either free or pro depending on the icons you are planning to use. (Learn more about setting babel macros)

module.exports = {
  'fontawesome-svg-core': {
    'license': 'free'
  }
}

Add the Icons to Your Project

Then you can add the icons using the syntax below wherever you want them to appear in your project.

Here's an example where we import the solid and regular styles and then add the coffee and user-secret icons into the app UI:

import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
import { solid, regular, brands } from '@fortawesome/fontawesome-svg-core/import.macro' // <-- import styles to be used

<FontAwesomeIcon icon={solid('user-secret')}" />
<FontAwesomeIcon icon={regular('coffee')}" />
<FontAwesomeIcon icon={brands('twitter')}" />

Add Some Style

Now that you have some icons on the page, add some pieces of flair! Check out all the styling options you can use with Font Awesome and React.

Express Yourself with Some Styling!

Alternative Ways to Add Icons

If you can't dynamically import icons, we have a couple of other options available. Here's a handy table comparing the ways you can add icons with React:

Option	Benefits	Drawbacks
Dynamic Icon Import	Automatically includes just the icons you're using in your components, optimizing your final bundle. Only the icons you use are included in the bundle.	You need to add and configure babel macros.
Individually	Allows icons to be subsetted, optimizing your final bundle. Only the icons you import are included in the bundle.	Explicitly importing icons into each of many components in your project can become tedious.
Globally	Individually import icons just once in an init module - there's no need to import the icons into each component once they’ve been added to the library.	You may be including files that won't be used and could impact performance.

Add Individual Icons Explicitly

If you can't or don't want to use the Dynamic Icon Importing method, you can explicitly add individual icons to each component. Here's a simple example:

import ReactDOM from 'react-dom'
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
import { faCoffee } from '@fortawesome/free-solid-svg-icons'

const element = <FontAwesomeIcon icon="fa-regular fa-coffee" />

ReactDOM.render(element, document.body)

Notice that the faCoffee icon is imported from @fortawesome/free-solid-svg-icons as an object and then provided to the icon prop as an object.

Add Icons Globally

We like to travel light so we don't recommend this method unless you know what you're doing. Globally importing icons can increase the size of your bundle with icons you aren't using. It also couples your components to another module that manages your icons. But here's how you do it if you can't use dynamic icon importing or global is how you like to roll.

First, you'll import the icons you want to use via a “library” in the initializing module of your React application, like App.js. Here's an example of that:

import ReactDOM from 'react-dom'
import { library } from '@fortawesome/fontawesome-svg-core'
import { fas } from '@fortawesome/free-solid-svg-icons'
import { faTwitter, faFontAwesome } from '@fortawesome/free-brand-svg-icons'

library.add(fas, faTwitter, faFontAwesome)

In our call to library.add() we’re passing:

• fas: which represents all of the icons in @fortawesome/free-solid-svg-icons. (Be careful importing whole styles - it can be a LOT of icons!) So any of the icons in that package may be referenced by icon name as a string anywhere else in our app. For example: coffee, check-square, or spinner.
• faTwitter and faFontAwesome: Adding each of these brand icons individually allows us to refer to them throughout our app by their icon string names, twitter and font-awesome.

You can then use any of those icons anywhere in your app without needing to re-import into each component. So if you used icons in a couple of components, that would end up looking something like this:

import React from 'react'
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'

export const Beverage = () => (
  <div>
    <FontAwesomeIcon icon="fa-solid fa-check-square" />
    Your <FontAwesomeIcon icon="fa-regular fa-coffee" /> is hot!
  </div>
)

import React from 'react'
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'

export const Showcase = () => (
  <div>
    <FontAwesomeIcon icon="fa-brands fa-twitter" />
    <FontAwesomeIcon icon="fa-brands fa-font-awesome" />

    <FontAwesomeIcon icon="fa-regular fa-mug-hot" />
    The coffee is ready at these companies!
  </div>
)

You'll notice we were able use the imported brand icons without explicitly importing them in the component. And we used the check-square, coffee, and mug-hot icons without explicitly importing them anywhere. But, our bundle now has over 1000 solid icons plus the two brand icons we added, which is more than we're using - a good reason to avoid importing a whole style.

Same icons, Different Styles

Using ES modules and import statements we can define unique names for two different styles of the same icon. Here’s an example:

import { library } from '@fortawesome/fontawesome-svg-core'
import { faCoffee as fasFaCoffee } from '@fortawesome/pro-solid-svg-icons'
import { faCoffee as farFaCoffee } from '@fortawesome/pro-regular-svg-icons'

library.add(fasFaCoffee, farFaCoffee)