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mui/material-ui

Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.

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Summary Information

Updated 2 hours ago
Type:Library / SDKCategory(s):UI Components & Design SystemsFrontend FrameworksWeb Development
Added to GitGenius on February 25th, 2022
Created on August 18th, 2014
Open Issues & Pull Requests: 1,465 (-2)
GitHub issues: Enabled
Number of forks: 32,508
Total Stargazers: 99,153 (+4)
Total Subscribers: 1,319 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 15.5 hours
Mean response time: 284.0 days
90th percentile: 1206.4 days
Tracked items: 3,680

Most active contributors

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Maintainer activity

41 people did triage or write work on this repository in the last 12 months.

Counts unlabeled, assigned, unassigned, milestoned, demilestoned, locked, unlocked over the last 12 months. These are issue and pull request events that require triage or write permission. Commits and code review are not counted. labeled and renamed are excluded because GitHub issue forms record the issue author as the actor. Figures from October 7, 2026. This count is not comparable across projects: each project's automation decides which of these events a person emits.

How this project is maintained

Practically every issue opened in the past year has drawn a reply. 84% of open issues come from outside the core team, so the backlog reflects real-world use rather than internal planning. Work labelled "scope: autocomplete" is answered fastest, typically in about 6 hours, while "type: new feature" waits about 2 days. 61% of tracked open issues have had no activity in three months, so the open count overstates what is actively being worked. 78% of issues opened in the past year have been closed, leaving a working backlog.

Charts & Analytics

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Issue Activity (beta)

Open issues: 1,329
New in 7 days: 4
Closed in 7 days: 6
Avg open age: 1,136 days
Stale 30+ days: 1,293
Stale 90+ days: 1,271

Recent activity

Opened in 7 days: 4
Closed in 7 days: 6
Comments in 7 days: 9
Events in 7 days: 35

Top labels

  • type: bug (2,829)
  • docs (1,955)
  • duplicate (1,913)
  • support: question (1,788)
  • status: waiting for author (1,488)
  • type: new feature (1,391)
  • support: Stack Overflow (1,329)
  • good first issue (1,307)

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Detailed Description

Material UI is a comprehensive React component library that implements Google's Material Design system. The library provides developers with a collection of pre-built, production-ready components that follow Material Design principles, enabling faster development of user interfaces that maintain visual and interaction consistency. The project is maintained as free and open-source software under the MIT license.

Material UI's core offering is extended by MUI X, a separate suite of complex components designed for advanced use cases beyond the standard component library. The project maintains multiple version branches, with v5.x, v4.x, v3.x, and v0.x documentation available alongside the current release, and provides migration guides for users upgrading between major versions.

The repository's contributor base overlaps significantly with major technology projects including Microsoft's VSCode and TypeScript repositories, as well as the Rust language project, indicating that Material UI attracts developers working across diverse technology stacks. The library is classified across multiple domains including React components, UI libraries, design systems, accessibility, responsive layout, styling frameworks, and customization capabilities.

Material UI is backed by both diamond-level sponsors pledging $1,500 monthly or more and gold-level sponsors at $500 monthly or more, including companies like Tidelift and DialMyCalls. The project provides extensive documentation through its official website, example projects demonstrating implementation patterns, and premium templates available through the MUI Store. Development contributions are guided by a formal contributing guide, and the project maintains a public roadmap outlining future priorities and planned enhancements. Security policies are documented separately to provide clear guidance for reporting vulnerabilities.