Iconoir vs Phosphor Icons (2026)
When building modern web applications, choosing the right icon library can significantly impact both your application's aesthetic and its performance. In this comprehensive comparison, we pit Iconoir against Phosphor Icons to help you make an informed decision for your React, Next.js, Vue, or Svelte project.
Together, these libraries represent some of the most popular open-source UI assets available today. Iconoir boasts an impressive 1,384 icons (licensed under MIT), while Phosphor Icons counters with 1,533 highly-polished icons (licensed under MIT).
Below, we dive into the technical details: bundle size impacts, tree-shaking capabilities, TypeScript support, explicit commercial licensing rules, and real-world implementation examples.
TECHNICAL FEATURE COMPARISON
When comparing Iconoir and Phosphor Icons, developer experience features like TypeScript definitions and tree-shaking support are just as important as the icon count. Review the matrix below to see how they stack up.
LICENSING & COMMERCIAL USE DEEP-DIVE
Legal compliance is critical when selecting assets for a commercial software project. Understanding the nuances between the MIT license used by Iconoir and the MIT license used by Phosphor Icons will ensure your project remains risk-free.
Iconoir uses the MIT License — one of the most permissive open-source licenses. You can use it in any commercial project, modify the icons, and redistribute them freely. The only requirement is preserving the copyright notice in copies of the software.
Phosphor Icons uses the MIT License — one of the most permissive open-source licenses. You can use it in any commercial project, modify the icons, and redistribute them freely. The only requirement is preserving the copyright notice in copies of the software.
PERFORMANCE & BUNDLE SIZE
Modern front-end frameworks like React and Next.js heavily penalize large JavaScript bundles. This makes tree-shaking—the ability of a bundler to remove unused code—a crucial factor when choosing between Iconoir and Phosphor Icons.
- Iconoir Performance: Because Iconoir supports tree-shaking, importing a single icon will only add a tiny fraction of a kilobyte to your final bundle. You can safely install the entire package without performance concerns.
- Phosphor Icons Performance: Similarly, Phosphor Icons is fully tree-shakable. Your Webpack or Turbopack build step will strip out any unused icons, ensuring your First Contentful Paint (FCP) metrics remain exceptional.
REACT IMPORT SYNTAX & INTEGRATION
Here is how you actually write the code to import and use each library in a React or Next.js component. Both libraries offer distinct APIs and integration patterns.
import { Camera, Search } from 'iconoir-react'
export default function App() {
return (
<div className="flex gap-4 text-blue-500">
<Camera color="currentColor" strokeWidth={1.5} />
<Search />
</div>
)
}import { House } from '@phosphor-icons/react'
export default function App() {
return <House size={24} weight='duotone' />
}FINAL VERDICT: WHICH SHOULD YOU CHOOSE?
Still undecided? Here is our definitive breakdown of when to use Iconoir versus when to opt for Phosphor Icons.
FREQUENTLY ASKED QUESTIONS
Which is better: Iconoir or Phosphor Icons?
Choosing between Iconoir and Phosphor Icons depends entirely on your project's technical requirements and design aesthetic. Iconoir provides 1,384 icons and is notable for incredibly consistent, premium aesthetic that rivals paid libraries., while Phosphor Icons offers 1,533 icons and is best known for 6 weight variants.
Are Iconoir and Phosphor Icons completely free to use?
Yes. Both libraries are highly permissive open-source projects. Iconoir is licensed under MIT, and Phosphor Icons is licensed under MIT. Both licenses permit free commercial usage, modification, and redistribution in both personal and enterprise projects.
Do these libraries support TypeScript natively?
Yes, Iconoir includes excellent built-in TypeScript definitions. Similarly, Phosphor Icons offers robust native TypeScript support for an improved developer experience.
NPM INSTALLATION COMMANDS
npm install iconoir-react
npm install @phosphor-icons/react