Using a React Icon Library

Modern React applications benefit from using dedicated icon libraries that provide scalable, customizable, and tree-shakeable icon components. Below are four excellent options evaluated for Next.js 15, TypeScript, and Tailwind CSS v4 projects.

Option 1: Lucide React

The Library

Lucide React is a modern icon library that provides beautifully crafted icons as React components. It's a community-maintained fork of Feather Icons with expanded icon sets and ongoing active development.

Installation:

1yarn add lucide-react

What I Researched About It

Key Features:

• Outstanding Tree-Shaking: Only imports the specific icons you use, resulting in minimal bundle size impact
• 1,000+ Icons: Comprehensive collection covering most use cases
• TypeScript Native: Built with TypeScript, providing excellent type safety and IntelliSense
• Consistent Design: All icons follow the same 24×24 grid with consistent stroke width
• Zero Dependencies: Minimal overhead, pure React components
• SSR Compatible: Works seamlessly with Next.js server components

Sources:

• Official Documentation: lucide.dev
• GitHub: 7,000+ stars, active maintenance
• NPM: ~2M weekly downloads (2025)

Usage Example:

1import { Home, Settings, User } from 'lucide-react';
2
3export const Navigation = () => {
4  return (
5    <nav>
6      <Home size={24} color="#000" strokeWidth={2} />
7      <Settings size={24} className="text-blue-500" />
8      <User size={24} />
9    </nav>
10  );
11};

Why It's a Fit for This Project Stack

• Next.js 15 Ready: Full App Router and Server Components support
• TypeScript Excellence: Complete type definitions out of the box
• Tailwind CSS Integration: Works seamlessly with Tailwind's className prop
• Performance First: Minimal bundle impact (each icon ~1-2KB)
• Modern ESM: Fully ESM-compatible, aligning with Next.js 15's module strategy
• Active Development: Regular updates with new icons and improvements

Option 2: React Icons

The Library

React Icons aggregates 30+ popular icon sets (Font Awesome, Material Design, Heroicons, Bootstrap Icons, Feather, and more) into a single, unified package.

Installation:

1yarn add react-icons

What I Researched About It

Key Features:

• 30+ Icon Families: Access to thousands of icons from various design systems
• Unified API: Consistent interface across all icon sets
• Tree-Shaking Support: ES6 imports ensure only used icons are bundled
• 15,000+ Icons: Massive collection covering virtually any use case
• Flexible Styling: Full control via React props or CSS

Sources:

• Official Site: react-icons.github.io/react-icons
• NPM: ~10M weekly downloads (2025)
• Community: Widely adopted, extensive Stack Overflow support

Usage Example:

1import { FaHome } from 'react-icons/fa';      // Font Awesome
2import { MdSettings } from 'react-icons/md';  // Material Design
3import { HiUser } from 'react-icons/hi';      // Heroicons
4
5export const Navigation = () => {
6  return (
7    <nav>
8      <FaHome className="w-6 h-6 text-gray-700" />
9      <MdSettings className="w-6 h-6 text-blue-500" />
10      <HiUser className="w-6 h-6" />
11    </nav>
12  );
13};

Why It's a Fit for This Project Stack

• Maximum Flexibility: Switch between icon families without changing libraries
• TypeScript Support: Includes TypeScript definitions
• Tailwind Compatible: Icons accept className for easy Tailwind styling
• Next.js Compatible: Works with App Router and Server Components
• One Dependency: Consolidates multiple icon libraries into one package
• Consistent Imports: Predictable naming convention across all icon sets

Option 3: Heroicons

The Library

Heroicons is an open-source icon set created by the Tailwind CSS team, offering over 300 icons in both outline and solid styles.

Installation:

1yarn add @heroicons/react

What I Researched About It

Key Features:

• Tailwind CSS Native: Designed specifically for Tailwind projects
• Dual Styles: Each icon available in outline and solid variants
• 300+ Icons: Curated collection focusing on common UI needs
• Optimized SVGs: Hand-crafted, optimized paths for performance
• React 18+ Ready: Built for modern React with hooks support

Sources:

• Official Site: heroicons.com
• GitHub: Created and maintained by Tailwind Labs
• NPM: ~3M weekly downloads (2025)

Usage Example:

1import { HomeIcon } from '@heroicons/react/24/outline';
2import { CogIcon } from '@heroicons/react/24/solid';
3
4export const Navigation = () => {
5  return (
6    <nav>
7      <HomeIcon className="w-6 h-6 text-gray-700 hover:text-blue-500" />
8      <CogIcon className="w-6 h-6 text-blue-500" />
9    </nav>
10  );
11};

Why It's a Fit for This Project Stack

• First-Party Tailwind Support: Built by the Tailwind CSS team
• Tailwind v4 Compatible: Tested and optimized for latest Tailwind
• Next.js Optimized: Fully compatible with Next.js 15 App Router
• TypeScript Built-in: Complete type safety
• Two Variants: Outline for general use, solid for emphasis
• Consistent Sizing: 24×24 grid matches Tailwind's spacing scale
• Zero Config: Works out of the box with Tailwind classes

Option 4: Phosphor Icons

The Library

Phosphor Icons is a flexible icon family for interfaces, diagrams, presentations, and more. It offers 6 different weights (thin, light, regular, bold, fill, duotone) for each icon.

Installation:

1yarn add @phosphor-icons/react

What I Researched About It

Key Features:

• 6 Weight Variants: Unprecedented flexibility with thin, light, regular, bold, fill, and duotone styles
• 1,200+ Icons: Growing collection with regular updates
• Tree-Shakeable: Individual icon imports for optimal bundle size
• Contextual API: Flexible props for size, color, weight, and more
• Consistent Design Language: All icons share the same 48×48 grid

Sources:

• Official Site: phosphoricons.com
• GitHub: 6,000+ stars, active development
• NPM: ~500K weekly downloads (2025)

Usage Example:

1import { House, Gear, User } from '@phosphor-icons/react';
2
3export const Navigation = () => {
4  return (
5    <nav>
6      <House size={32} weight="regular" className="text-gray-700" />
7      <Gear size={32} weight="bold" className="text-blue-500" />
8      <User size={32} weight="duotone" className="text-purple-600" />
9    </nav>
10  );
11};

Why It's a Fit for This Project Stack

• Design Flexibility: Six weight variants provide unmatched design control
• TypeScript Native: Excellent type definitions and IntelliSense
• Tailwind Compatible: Works seamlessly with Tailwind utilities
• Next.js Ready: Full SSR and App Router support
• Modern React: Built for React 18+ with hooks support
• Unique Duotone Style: Offers effects not available in other libraries
• Professional Grade: Used by major companies and design systems

Recommendation Summary

| Library | Best For | Bundle Impact | Icon Count | Unique Advantage | |---------|----------|---------------|------------|------------------| | Lucide React | General use, performance-critical apps | Minimal (1-2KB per icon) | 1,000+ | Best tree-shaking, modern | | React Icons | Projects needing multiple icon families | Medium (with tree-shaking) | 15,000+ | All-in-one solution | | Heroicons | Tailwind CSS projects | Minimal | 300+ | Native Tailwind integration | | Phosphor Icons | Design systems needing weight variants | Small-Medium | 1,200+ | 6 weight variants |

Implementation Pattern

Regardless of which library you choose, follow this pattern for consistency:

1// Create an icon wrapper for centralized styling
2import { Home } from 'lucide-react'; // or your chosen library
3
4interface IconProps {
5  size?: number;
6  className?: string;
7}
8
9export const Icon = ({ Icon: IconComponent, size = 24, className }: IconProps & { Icon: any }) => {
10  return <IconComponent size={size} className={cn('transition-colors', className)} />;
11};
12
13// Usage
14<Icon Icon={Home} size={24} className="text-gray-700 hover:text-blue-500" />

This approach allows you to:

• Centralize icon styling and behavior
• Easily swap icon libraries if needed
• Apply consistent transitions and effects
• Maintain type safety with TypeScript