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MUI Core logo

MUI Core

MUI Core contains foundational React UI component libraries for shipping new features faster:

  • Material UI is a comprehensive library of components that features our implementation of Google's Material Design system.

  • Joy UI is a library of beautifully designed React UI components built to spark joy.

  • Base UI is a library of unstyled React UI components and hooks. With Base UI, you gain complete control over your app's CSS and accessibility features.

  • MUI System is a collection of CSS utilities to help you rapidly lay out custom designs.

license npm latest package npm next package npm downloads CircleCI Coverage Status Follow on Twitter Renovate status Average time to resolve an issue Open Collective backers and sponsors CII Best Practices


Material UI

Visit to view the full documentation.

Older versions

Note: @next only points to pre-releases. Use @latest for the latest stable release.

Joy UI

Visit to view the full documentation.

Note: Joy UI is still in beta. We are adding new components regularly and you're welcome to contribute!

Base UI

Visit to view the full documentation.

Note: Base UI is still in beta. We are adding new components regularly and you're welcome to contribute!

MUI System

Visit to view the full documentation.


Diamond 💎

octopus doit

Diamond sponsors are those who have pledged $1,500/month or more to MUI.

Gold 🏆

via Open Collective or via Patreon Spotify Icons8

Gold sponsors are those who have pledged $500/month or more to MUI.

More backers

See the full list of our backers.


For how-to questions that don't involve making changes to the code base, please use Stack Overflow instead of GitHub issues.


Our documentation features a collection of example projects.

Premium templates

You can find complete templates and themes in the MUI Store.


Read the contributing guide to learn about our development process, how to propose bug fixes and improvements, and how to build and test your changes.

Contributing is about more than just issues and pull requests! There are many other ways to support MUI beyond contributing to the code base.


The changelog is regularly updated to reflect what's changed in each new release.


Future plans and high-priority features and enhancements can be found in our roadmap.


This project is licensed under the terms of the MIT license.


For details of supported versions and contact details for reporting security issues, please refer to the security policy.

Sponsoring services

These great services sponsor MUI's core infrastructure:

GitHub logo

GitHub lets us host the Git repository and coordinate contributions.

Netlify logo

Netlify lets us distribute the documentation.

BrowserStack logo

BrowserStack lets us test in real browsers.

CodeCov logo

CodeCov lets us monitor test coverage.