Question 1

What are function icons?

Accepted Answer

function icons are SVG graphics that visually represent function-related concepts, actions, or objects. They're commonly used in user interfaces to improve navigation, indicate functionality, or add visual interest. Our collection includes 86 free function icons from multiple open-source libraries.

Question 2

How many function icons are available?

Accepted Answer

We currently offer 86 free function icons aggregated from popular open-source icon libraries including Lucide, Heroicons, Material Icons, and more. All icons are available under permissive licenses (MIT, Apache 2.0) for both personal and commercial use.

Question 3

Are function icons free to use?

Accepted Answer

Yes! All function icons in our collection are completely free for personal and commercial projects. They come from open-source libraries with permissive licenses. You can use them in websites, apps, presentations, and print materials without attribution requirements.

Question 4

How do I use function icons in React?

Accepted Answer

Click any function icon to open its detail page, then use the shadcn CLI command to install it as a React component. Alternatively, copy the React component code directly or download the SVG file. All icons support customization props like size, color, and strokeWidth.

Question 5

Can I customize the function icons?

Accepted Answer

Absolutely! Use the "Customize" button to adjust color, size, stroke width, rotation, flip, padding, and opacity. Your customizations apply to all icons in the grid and are reflected when you copy code or download files. Each icon detail page also has a full customization panel.

Question 6

What formats can I download function icons in?

Accepted Answer

You can download function icons in multiple formats: SVG (scalable, recommended for web), PNG (transparent background, any size), WebP (modern, smaller files), JPEG (with background), and ICO (for favicons). All downloads include your current customizations.

Question 7

Do function icons work with Next.js and Tailwind CSS?

Accepted Answer

Yes! Our icons are optimized for Next.js and Tailwind CSS projects. Install via the shadcn CLI for the best integration—icons are added as components that support Tailwind classes and work seamlessly with your existing shadcn/ui setup.

Question 8

Can I use function icons in Vue, Svelte, or Angular?

Accepted Answer

Yes! Each icon detail page provides copy-ready component code for React, Vue, Svelte, Angular, Solid, and Preact. You can also copy the raw SVG or data URL for use in any framework or platform.

function Icons for React

function Icons FAQ