List of the Top 15 Component Libraries for CSS in 2025

Develop web projects with a mobile-first, responsive design using a user-centric component library that emphasizes accessibility. Create a function that combines two theme objects into one, making sure that in cases of conflicting styles, the styles from the second theme take precedence. Tailor composite components with Grommet by employing atomic design principles, allowing you to craft a library that meets your individual needs. It’s crucial to integrate features such as keyboard navigation and screen reader tags to enhance the accessibility of your design. Grommet is engineered to adhere to the W3C’s WCAG 2.1 guidelines from the beginning, fostering inclusivity for all users. In addition, ensure broad device support by leveraging Flexbox and CSS Grid, enabling layouts that adjust fluidly to both modern smartphones and expansive widescreen displays, thus providing a uniform user experience across diverse platforms. This holistic strategy not only enhances usability but also empowers developers to create web applications that are both effective and inclusive for a wide audience. Ultimately, prioritizing accessibility and responsiveness will lead to a more engaging experience for users regardless of their devices.

Establish a unified repository that encompasses styles, tokens, guidelines, code, components, and design patterns, all seamlessly integrated and synchronized with your existing tools. With zeroheight, you can effortlessly uphold consistency across various products while minimizing the time and resources required to confidently launch new brands and offerings. Our platform provides an array of features that cater to teams of all sizes, from startups to large enterprises, incorporating governance, analytics, and automation to streamline your workflow. This ensures that every team member has access to the most up-to-date resources, fostering collaboration and innovation.

GuideChimp can be easily integrated into any web application, supporting frameworks such as React, Vue.js, Angular, ES Modules, along with traditional JavaScript and HTML. Its seamless integration with existing tools allows for personalization using SCSS and clean CSS, enabling a perfect match with your product's aesthetic. The platform is highly customizable, offering a variety of built-in and third-party plugins that enhance usability, feedback, and analytics functionalities. With thorough documentation provided, this open-source library facilitates a smooth integration process that is user-friendly and quick to learn. Designed to be both effective and straightforward, GuideChimp delivers impressive results with minimal effort, allowing for setup in just three minutes. You can also tailor its appearance to align with your software product, ensuring that visitors notice it by incorporating a beacon on any web page element. This adaptability makes GuideChimp an indispensable part of enhancing user experience, ensuring that you can cater to the unique needs of your audience. Ultimately, it empowers you to create a more engaging and interactive environment for your users.

Material Design Lite (MDL) is a set of components designed specifically for web developers, drawing inspiration from Google's Material Design Philosophy, which integrates timeless design principles with modern technological advancements. To effectively use MDL components, it is crucial to understand the goals and principles behind Material Design. Before diving into these components, you should first read the Material Design Introduction to grasp its concepts fully. When working with the dialog component, it is important to ensure that you are using a browser that supports the dialog element, as currently, only Chrome and Opera offer native support. For other browsers that do not support this feature, you will need to either utilize the dialog polyfill or create an alternative solution. Once you have confirmed that dialog support is in place, you can move on to create a dialog element, making sure that if you are using the polyfill, this element is placed within the body tag. After establishing this container, add a content element within it that features the class mdl-dialog content to ensure that the dialog is formatted correctly. By following these guidelines, you will significantly improve your capability to implement dialogs in your web development projects effectively, leading to a more polished user experience. This attention to detail will ultimately enhance the overall quality of your web applications.

It's as simple as merging Angular with Bootstrap CSS—nothing beyond that. If you have a good understanding of Angular, then ng-bootstrap will be easy for you to master. You can expect to find all the essential Bootstrap components such as carousels, modals, popovers, tooltips, and navigation, in addition to enhanced features like datepickers, ratings, and typeahead capabilities. Each piece of code has undergone rigorous testing to achieve nearly complete coverage, and every change is meticulously reviewed; our emphasis is on maintaining exceptional quality. Accessibility is fundamental to all our widgets, ensuring that we use the appropriate HTML elements and necessary ARIA attributes. We also implement keyboard navigation and focus management to work seamlessly. Our team is responsible for developing angular-ui/bootstrap, and we have invested years into perfecting these widgets. A number of our team members also contribute to the core Angular framework, showcasing our dedication to the community by improving the projects that we rely on, including Angular and Bootstrap. By doing so, we aim to create a positive impact for others while adhering to the highest development standards, fostering a collaborative environment that benefits all users.

Utilizing modern frameworks like Angular in conjunction with Salesforce's Lightning Design System guarantees that your application is designed for durability and long-term success. Our methodology focuses on crafting stateless functional components that depend solely on their input properties, which boosts performance, enhances development flexibility, and facilitates seamless integration with the specific requirements of your application. We prioritize compliance with the accessibility standards set forth by the Lightning Design System, ensuring that your product is accessible to users of varying abilities and meets all legal requirements. To confirm that your application operates optimally, it is crucial to include SLDS CSS files along with a streamlined selection of structural styles from the Component Development Kit (CDK). If you are employing the Angular CLI, adding the designated styles to the styles array in your angular.json configuration file is necessary, as this will simplify the styling process for your project. This meticulous focus on both aesthetics and functionality contributes to crafting a user-friendly interface that resonates with a wide audience, enhancing overall user satisfaction and engagement. Moreover, by following these guidelines, you can ensure your application remains competitive in a rapidly evolving digital landscape.

Blazor facilitates the development of interactive web user interfaces using C# instead of JavaScript. Applications built with Blazor are composed of modular web UI components developed with a combination of C#, HTML, and CSS. This framework allows developers to write both client-side and server-side code in C#, making it easier to share code and libraries across the application. As part of ASP.NET, a prominent web development framework, Blazor enriches the .NET developer ecosystem by offering specialized tools and libraries for creating web applications. One of its standout features is the ability to run client-side C# code directly in the browser through WebAssembly, which enables the reuse of server-side code and libraries seamlessly. Alternatively, client logic can be handled on the server, with client UI events communicated back to the server via SignalR, a real-time messaging framework. Once the server processes these events, the necessary updates to the UI are sent back to the client and incorporated into the Document Object Model (DOM), ensuring a smooth user experience. This integration of client and server functionalities through Blazor not only enhances development efficiency but also paves the way for innovative web application designs. Developers can leverage this capability to create more responsive and dynamic applications, ultimately improving user engagement and satisfaction.

A utility-first CSS framework, like Tailwind, provides a range of classes such as flex, pt-4, text-center, and rotate-90, enabling developers to construct any design directly within their HTML markup. By employing these utility classes, you can maintain a structured methodology that prevents your stylesheets from becoming cluttered with arbitrary values. This strategy promotes consistent decisions regarding colors, spacing, typography, shadows, and other components essential for a cohesive design system. The foundational aspect of Tailwind allows for flexibility, meaning it doesn't require you to replicate the same design across various websites. Even when utilizing the same color palettes and sizing measurements, you can easily design the same component to achieve a unique look for a different project. Furthermore, Tailwind effectively eliminates all unused CSS during production builds, which helps keep the final CSS bundle size as minimal as possible. As a consequence, many Tailwind-driven projects yield CSS files smaller than 10kB for users, showcasing the framework's efficiency and power in web design. This streamlined approach not only bolsters site performance but also significantly enhances loading times for users, creating a more enjoyable browsing experience. Additionally, the ability to customize and extend Tailwind's utilities further empowers developers to create bespoke designs while still benefiting from the framework's advantages.

Shadcn/ui is an open-source library available for free, providing a range of visually appealing, accessible, and highly customizable components that developers can seamlessly integrate into their applications. Built using Tailwind CSS, these components can be easily copied and pasted, allowing for rapid development while preserving design quality. The library includes a diverse assortment of elements, including buttons, sidebars, avatars, tabs, and charts, all crafted to merge aesthetic charm with functional excellence. Shadcn UI emphasizes composability and theming, giving developers the flexibility to tailor components to suit specific project requirements and branding strategies. In addition, it comes with comprehensive documentation and illustrative examples that assist in the efficient implementation and customization of components across various projects. By leveraging Shadcn UI, developers can significantly accelerate the user interface development process, ensuring their applications are both consistent and accessible. Moreover, the library's intuitive design empowers developers of all skill levels to efficiently elevate their projects and enhance user experiences. With Shadcn UI, building stunning and functional applications has never been easier.

Flowbite is an open-source repository of versatile UI components built on the Tailwind CSS framework, designed to simplify the web development journey by offering a wide selection of pre-built elements. With over 56 unique component types, it encompasses fundamental elements such as buttons, alerts, breadcrumbs, pagination, and navbars, as well as interactive components like dropdowns, modals, and tooltips, all enhanced by custom JavaScript to elevate user interaction. Developers can easily integrate Flowbite into their existing Tailwind CSS projects using npm or a CDN, and it supports a variety of frameworks, including React, Vue.js, Angular, and Next.js. Furthermore, the library includes a Figma design system, which streamlines the process for designers to create application prototypes before diving into coding. For those seeking additional features, Flowbite offers a Pro version, which comes with extra components and templates to enhance functionality. Moreover, the ecosystem is enriched by Flowbite Blocks, showcasing over 450 pre-designed website sections and advanced UI components crafted with Tailwind CSS, which aids in promoting a more efficient design and development process. This extensive library not only supports developers but also inspires designers, making it an invaluable resource for any project. Ultimately, Flowbite stands out as a powerful tool that fosters collaboration between developers and designers, ensuring a smoother workflow from concept to completion.

DaisyUI is a component library designed for Tailwind CSS that simplifies the development workflow by providing semantic class names for a range of UI components, such as cards and toggles. This approach reduces the need for excessive utility class coding, resulting in cleaner and more manageable HTML structures. Built on the foundation of Tailwind CSS, DaisyUI offers vast customization options for its components using Tailwind's utility classes. The library operates exclusively as a CSS plugin, free from any JavaScript dependencies, which ensures its compatibility with various JavaScript frameworks. The installation process is straightforward, and it supports an infinite number of themes through customizable color names that utilize CSS variables, enabling features like dark mode implementation without the need for additional class names. Moreover, DaisyUI meshes effortlessly with Tailwind CSS, granting developers the ability to tailor every element by utilizing utility classes. This plugin is crafted to function seamlessly across all JavaScript frameworks and does not necessitate a separate JavaScript bundle, making it a highly efficient choice for developers aiming to elevate their UI design capabilities. In addition, its flexibility allows for rapid iteration on designs, ensuring that developers can adapt their user interfaces to meet changing requirements swiftly.

Radix UI is a versatile, no-cost component library designed for swift development, easy upkeep, and improved accessibility. It comprises two key packages: Radix Primitives and Radix Themes. Radix Primitives acts as a core UI component library that emphasizes accessibility, versatility, and a better experience for developers. The components are built in accordance with WAI-ARIA guidelines, remain unstyled by default, and facilitate extensive keyboard navigation. On the other hand, Radix Themes offers a ready-to-deploy component library that is simple to configure, showcasing layout primitives, typography, and customizable features like buttons and cards through the Theme component. Moreover, Radix Colors presents a comprehensive and accessible color palette aimed at crafting visually striking and user-friendly websites and applications, including options for automatic dark mode and transparent variants. Additionally, Radix Icons features a sharp collection of 15×15 icons that can be employed as individual React components, enhancing the aesthetic quality of applications. This suite of resources not only allows developers to build polished interfaces efficiently but also ensures that accessibility remains a core focus throughout the development process. Ultimately, Radix UI stands as a powerful ally in creating modern web applications.

Base UI is an assortment of headless React components and essential hooks that empower developers to have complete control over the styling and accessibility features of their applications. Originating from Material UI, these components are now available as a standalone package that upholds the same high standards of engineering while not requiring adherence to Material Design principles. The library comes with pre-built components that are equipped with production-ready functionalities, along with low-level hooks that facilitate the incorporation of these functionalities into different components. With Base UI, developers can effortlessly enhance core components using any styling method they prefer, thus avoiding the need to alter any default style engines or themes. This framework streamlines numerous aspects of UI development, including accessibility, compatibility across different browsers, and event handling, enabling developers to focus more on executing their design visions. Additionally, the basic skeletal components offered by Base UI make it simple to apply custom styles, supporting a variety of styling techniques such as vanilla CSS and Tailwind CSS. This versatility allows developers to craft distinctive user interfaces that are specifically designed to meet their project needs while enriching the overall development experience. Consequently, Base UI serves as a powerful tool that combines simplicity with extensive customization options, making it an ideal choice for modern web development.

Beginning with version 1.0.0, the library underwent a complete overhaul, crafted entirely in Typescript and ES6, which has removed the legacy jQuery plugin. The restructured framework is centered around a plugin system, leading to a more efficient core library. You will find that each file located in the dist/css and dist/js folders is provided in two distinct formats: the regular versions with .css and .js file types, and the compressed versions featuring .min.css and .min.js extensions. To boost loading speeds and enhance user experience on live websites, it is advisable to utilize the minified files. In contrast, when working on development, opting for the standard files without the .min extension simplifies the processes of debugging and maintaining the code. This significant transition not only improves overall performance but also brings the library's structure up to date, allowing developers to benefit from a more modern approach to coding. Ultimately, the enhancements reflect a commitment to providing a better development experience and a more efficient product for end-users.

Petal serves as a comprehensive toolkit designed to accelerate the development of Phoenix web applications, providing a variety of pre-designed and adaptable components along with templates. It boasts over 100 open-source HEEX components that are styled with Tailwind CSS, allowing developers to swiftly build user interfaces with minimal design work. In addition, Petal Pro is a powerful Phoenix boilerplate featuring essential tools like social logins, multi-tenancy capabilities, styled components, and integrations with Oban for background tasks and Stripe for subscription management. By focusing on rapid development, scalability, and ease of maintenance, Petal allows developers to dedicate their efforts to creating unique features rather than getting mired in repetitive boilerplate code. Furthermore, it includes a Figma UI kit to enhance collaboration between designers and developers, ensuring a seamless workflow. Utilizing Petal can significantly boost developers' productivity, reduce the time needed for application development, and lead to the delivery of high-quality applications in a much more efficient manner. This holistic approach not only simplifies the development journey but also cultivates a more dynamic and innovative atmosphere for teams tackling intricate projects, ultimately paving the way for enhanced creativity and problem-solving.