astro-icon

Astro Icon

This Astro integration provides a straight-forward Icon component for Astro.

• Why Astro Icon
• Installation
• Usage
• Configuration
• Examples
• Migrating to v1
• Contributing
• Changelog

Why Astro Icon

Installation

Quick Install

The astro add command-line tool automates the installation for you. Run one of the following commands in a new terminal window. (If you aren't sure which package manager you're using, run the first command.) Then, follow the prompts, and type "y" in the terminal (meaning "yes") for each one.

# Using NPM
npx astro add astro-icon
# Using Yarn
yarn astro add astro-icon
# Using PNPM
pnpm astro add astro-icon

If you run into any issues, feel free to report them to us on GitHub and try the manual installation steps below.

Manual Install

First, install the astro-icon package using your package manager. If you're using npm or aren't sure, run this in the terminal:

npm install astro-icon

Then, apply this integration to your astro.config.* file using the integrations property:

astro.config.mjs

import { defineConfig } from "astro/config";
import icon from "astro-icon";

export default defineConfig({
  integrations: [icon()],
});

Usage

Astro Icon is ready to use, with zero additional configuration. The included Icon component allows you to inline svgs directly into your HTML. Repeasted

Local Icons

By default, Astro Icon supports custom local svg icons. They are optimized with svgo automatically with no extra build step. See "A Pretty Good SVG Icon System" from CSS Tricks.

1. Create a directory inside of src/ named icons/.
2. Add each desired icon as an individual .svg file to src/icons/
3. Reference a specific icon file using the name prop.

---
import { Icon } from 'astro-icon/components';
---

<!-- Loads the SVG in `/src/icons/filename.svg` -->
<Icon name="filename" />

Iconify Icons

Astro Icon also supports Iconify icon sets out-of-the-box.

1. Find an Icon Set to use on the Iconify Icon Sets website
2. Install the package (eg. npm i -D @iconify-json/mdi)
3. Reference a specific icon using the name prop with (eg. mdi:account)

---
import { Icon } from 'astro-icon/components'
---

<!-- Automatically fetches and inlines Material Design Icon's "account" SVG -->
<Icon name="mdi:account" />

Props

The Icon component allows these custom properties:

interface Props extends HTMLAttributes<"svg"> {
  /**
   * References a specific Icon
   */
  name: string;
  title?: string;
  size?: number;
  width?: number;
  height?: number;
}

The Icon also accepts any global HTML attributes and aria attributes. They will be forwarded to the rendered <svg> element.

See the Props.ts file for more details.

Styling

Styling your icons is straightforward. Any styles can be targeted to the [data-icon] attribute selector. If you want to target a specific icon, you may target it by name using [data-icon="filename"].

---
import { Icon } from 'astro-icon/components';
---

<style lang="css">
    [data-icon] {
        color: blue;
        /* OR */
        fill: blue;
    }
    [data-icon="annotation"] {
        color: red;
        /* OR */
        fill: red;
    }
</style>

<Icon name="adjustment" /> <!-- will be blue -->
<Icon name="annotation" /> <!-- will be red -->

<!-- Example using Tailwind to apply color -->
<Icon name="annotation" class="text-red-500" /> <!-- will be red-500 -->

Using with Frameworks

Astro Icon can be used with other frameworks utilizing the slot element. You can read more about how to use Slots in Astro here. Passing Children to Framework Components

Configuration

Configuring the Integration

The Astro Icon integration has its own options for controlling the Icon component. Change these in the astro.config.mjs file which is where your project's integration settings live.

config.include

For users with a project using output: 'server' or output: 'hybrid', it is highly recommended to configure the exact icons that should be included in the server bundle. By default, every icon in the set will be bundled into the server JavaScript.

To filter the exact Iconify icons that should be included, set an array of allowed icons inside of the include object. Only these icons will be bundled.

astro.config.mjs

import { defineConfig } from "astro/config";
import icon from "astro-icon";

export default defineConfig({
  // ...
  integrations: [
    icon({
      include: {
        mdi: ["*"], // (Default) Loads entire Material Design Icon set
        mdi: ["account"], // Loads only Material Design Icon's "account" SVG
      },
    }),
  ],
});

config.iconDir

If you want to use a different custom svg icon directory instead of the default src/icons/, specify that file path using config.iconDir

import { defineConfig } from "astro/config";
import icon from "astro-icon";

export default defineConfig({
  // ...
  integrations: [
    icon({
      iconDir: "src/assets/icons",
    }),
  ],
});

config.svgoOptions

If you want to behavior of .svg optimization, you can configure the svgo options rather than using the defaults. Read more about the available svgo options here.

import { defineConfig } from "astro/config";
import icon from "astro-icon";

export default defineConfig({
  // ...
  integrations: [
    icon({
      svgoOptions: {
        multipass: true,
        plugins: [
          {
            name: "preset-default",
            params: {
              overrides: {
                // customize default plugin options
                inlineStyles: {
                  onlyMatchedOnce: false,
                },

                // or disable plugins
                removeDoctype: false,
              },
            },
          },
        ],
      },
    }),
  ],
});

Migrating to v1

astro-icon v1 contains a number of breaking changes. Please reference the Migrate to astro-icon v1 guide to update from older versions of astro-icon.

Contributing

You're welcome to submit an issue or PR!

Changelog

See CHANGELOG.md for a history of changes to this integration.