epam/UUI

React-based components and accelerators library built by EPAM Systems.

Owned by EPAM Systems

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epam/UUI has 200+ stars and 80+ forks on GitHub, is written in TypeScript, and was last pushed on Sep 29, 2026. Data as of . Signed-in members get hourly updates — create a free account.

Summary Information

Updated 45 minutes ago
Added to GitGenius on October 12th, 2026
Created on February 11th, 2021
Open Issues & Pull Requests: 121 (+0)
GitHub issues: Enabled
Number of forks: 80
Total Stargazers: 249 (+0)
Total Subscribers: 7 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 7.4 days
Mean response time: 94.4 days
90th percentile: 319.6 days
Tracked items: 356

How this project is maintained

About 16% of issues opened in the past year have never received a reply. 35% of open issues come from outside the core team, a mix of external reports and the maintainers' own roadmap. Work labelled "Design <> Dev align" is answered fastest, typically in under an hour, while "Contributor needed" waits about 3 months. 74% of issues opened in the past year have been closed, leaving a working backlog. Three people close 88% of everything that gets resolved.

Charts & Analytics

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Issue Activity (beta)

Open issues: 94
New in 7 days: 1
Closed in 7 days: 0
Avg open age: 674 days
Stale 30+ days: 89
Stale 90+ days: 88

Recent activity

Opened in 7 days: 1
Closed in 7 days: 0
Comments in 7 days: 0
Events in 7 days: 2

Top labels

  • improvement (192)
  • bug (136)
  • Figma (122)
  • feature (55)
  • Contributor needed (50)
  • Tokens (28)
  • Design <> Dev align (25)
  • A11y (24)

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Detailed Description

UUI is a React-based component library and design system built by EPAM Systems that provides pre-built UI components, state management primitives, and common services for application development.

The library addresses the need for a comprehensive, reusable set of UI components and utilities that can accelerate React application development. It offers a rich collection spanning from basic buttons to complex data tables, alongside state-management primitives for forms with validation and lists with lazy-loading capabilities. Common services like modals, notifications, and error handling are included. The approach emphasizes deep customization, allowing teams to build branded component sets on top of the foundation rather than requiring wholesale adoption of a fixed design system.

Teams should consider UUI if they are building React applications and want to avoid reinventing common UI patterns and services. The library is particularly suited for projects that value flexibility and incremental adoption, since it is not opinionated and works alongside existing tooling choices including Create React App, Babel, TypeScript, LESS, SASS, Apollo, and Redux. The project provides starter templates for Vite and Next.js to accelerate new project setup. The library's non-prescriptive nature means teams can adopt individual components or services without committing to a complete ecosystem replacement.

The project maintains active development with a dedicated team from EPAM providing ongoing support and evolution. Contribution is explicitly welcomed, indicating an open approach to community involvement in the library's direction and expansion.