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About

MUI offers a comprehensive suite of UI tools to help you ship new features faster. Start with Material UI, our fully-loaded component library, or bring your own design system to our production-ready components. Build at an accelerated pace without sacrificing flexibility or control. Every component you need is ready for production. Build beautiful UIs with ease. Start with Google's Material Design, or create your own sophisticated theme. Our components are as flexible as they are powerful. You always have full control over how they look and behave. We believe in building for everyone. That's why accessibility is one of our highest priorities with every new feature we ship. Find out why MUI's tools are trusted by thousands of open source developers and teams around the world. Get a growing list of components, ready-to-use, free forever, and with accessibility always in mind. We've built the foundational UI blocks for your design system so you don't have to.

About

Once UI is an open source design system and component library built for Next.js (and paired with a matching design system in Figma), offering a flexible style system, 100+ ready-to-use UI components, and more than 75 copy-paste blocks to rapidly assemble web apps. It supports both simple static sites and more complex applications, thanks to pre-built, deployment-ready templates for portfolios, documentation sites, blogs, ecommerce stores, and dashboards (free and Pro versions). Once UI emphasizes “component-first” development, meaning developers don’t need to manually write utility-class-heavy styling (like with some CSS frameworks); instead, they use semantic variables and components that integrate design tokens for visual consistency. For creators used to tools like utility-class frameworks or component libraries, but who want faster development with fewer dependencies, Once UI simplifies building UIs without sacrificing design quality or accessibility.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Anyone searching for a solution to build design systems and develop React applications

Audience

Independent developers, freelancers, startups and small teams searching for a tool to build polished web applications or websites quickly and consistently

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$0, MIT license
Free Version
Free Trial

Pricing

$128 per year
Free Version
Free Trial

Reviews/Ratings

Overall 1.0 / 5
ease 1.0 / 5
features 1.0 / 5
design 1.0 / 5
support 1.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Pros & Cons from Real Users

Pros

  • Everyone is using it, so it's easy to find support and to make modifications. Popular. Dark mode. Big community. Standardized design that looks like Google's stuff.

Cons

  • It's a pity that their support is such a scam. We accidentally purchased a MUI Figma Design Toolkit license for 2 editors instead of 1 (after realizing it would only be 1 person working on it), and tried using their money-back guarantee. Instead, we received a response from somebody called Matt who said that he didn't believe us (!) and that we wouldn't get the money back. After I mentioned that we would have to resort to chargeback, he started threatening us that chargeback is illegal. What an attitude! All this is in the context of their 30-day money-back guarantee, which means they don't honor their own policy.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

MUI
Founded: 2019
Remote
mui.com

Company Information

Once UI
United States
once-ui.com

Alternatives

Alternatives

Categories

Categories

Integrations

CSS
Next.js
Base UI
Figma
JavaScript
React
TypeScript
Vite

Integrations

CSS
Next.js
Base UI
Figma
JavaScript
React
TypeScript
Vite
Claim Material UI (MUI) and update features and information
Claim Material UI (MUI) and update features and information
Claim Once UI and update features and information
Claim Once UI and update features and information