Best Free Component Libraries - Page 5

Vuetify is an open source Vue.js component framework designed to help developers build modern, responsive, and visually consistent user interfaces using Google’s Material Design principles. It provides a comprehensive collection of pre-built, reusable UI components such as buttons, forms, navigation elements, data tables, and dialogs, all crafted to be accessible and responsive by default across different devices and screen sizes. It includes powerful features such as dynamic theming, global defaults, application layouts, and a flexible grid system, allowing developers to maintain design consistency while customizing the look and feel of their applications. It supports rapid project setup through tooling like Vite and CLI plugins, enabling developers to scaffold applications quickly and focus on functionality instead of low-level styling. Vuetify emphasizes ease of use by eliminating the need for advanced design skills, offering handcrafted components and a large API.

Element Plus is a Vue 3-based UI component library designed for developers, designers, and product teams to build modern, responsive web interfaces efficiently using a comprehensive set of reusable components. It provides a rich collection of encapsulated UI elements such as buttons, forms, tables, navigation components, dialogs, and data display modules, allowing developers to rapidly assemble applications without building interface elements from scratch. It follows a structured design system that helps create logically consistent, easy-to-use products while improving development efficiency through reusable code and standardized interaction patterns. Built specifically for Vue 3 and leveraging modern features like the Composition API and TypeScript support, it offers a scalable and maintainable architecture aligned with current frontend development practices.

PrimeVue is a next-generation UI component library for Vue.js that provides a comprehensive suite of reusable, customizable components, icons, blocks, and application templates to accelerate frontend development and improve productivity. It includes more than 80 ready-to-use components covering all aspects of interface design, such as forms, data tables, navigation, dialogs, and data visualization, allowing developers to build complex applications without creating UI elements from scratch. It is designed to be highly flexible and design-agnostic, offering both styled modes with prebuilt themes like Aura, Lara, or Nora, and an unstyled mode that allows full control using CSS frameworks such as Tailwind, Bootstrap, or custom styles. PrimeVue also supports responsive design, accessibility standards (WCAG compliance), and modern development practices such as TypeScript integration, modular imports, and compatibility with tools like Vite and Nuxt.

Quasar is an open source Vue.js-based framework designed to help developers build high-performance, responsive applications for multiple platforms using a single codebase. It allows the creation of single-page applications, server-side rendered apps, progressive web apps, mobile applications for iOS and Android, desktop applications for Windows, macOS, and Linux, and even browser extensions, all from the same source code, eliminating the need to maintain separate projects for each platform. It includes a powerful CLI that enables rapid project setup and provides a fully configured development environment with best practices already applied, allowing developers to start building applications in minutes. Quasar offers a comprehensive UI component library with a wide range of pre-built elements such as buttons, forms, tables, dialogs, navigation components, and utilities, all designed to be responsive, accessible, and optimized for performance.

Tailgrids is an open source React UI component library powered by Tailwind CSS, built to help teams ship modern web apps faster with reusable components, UI blocks, templates, and a complete design system. It brings React, Tailwind CSS, and Figma into one unified UI library for developers and designers who need performance, accessibility, consistency, and scalable design-to-development workflows. TailGrids includes 600+ free and pro React UI components, production-ready blocks, and ready-to-launch templates for applications, dashboards, marketing sites, ecommerce, and AI products. Each component and block is designed for real projects, not just demos, with clean modern UI patterns, mobile-first responsiveness, accessibility considerations, predictable structure, and full Tailwind-powered customization. Teams can use TailGrids with React-based frameworks like Next.js, React, Astro, and more, while the CLI helps scaffold projects.

Persona is a VanillaJS Agent UI Library that helps developers create agentic front-end experiences for the web in pure JavaScript. Lightweight, extensible, and WebMCP-native, it runs on any stack and can connect to any SSE backend. Developers can start with a floating launcher in the corner, a copilot docked beside an app, or a full-height assistant that owns the page, changing the launcher configuration without changing the agent or app. Persona is designed for support, docs, sales, onboarding, internal tools, and custom agent experiences where the chat UI becomes another way to operate the application. Through WebMCP, developers can expose page actions, search, carts, bookings, forms, and other tools directly in the browser through a document.modelContext; Persona discovers those tools, asks the user before calling them, and streams the result back into the conversation.

Fluree is an immutable RDF graph database written in Clojure and adhering to W3C standards, supporting JSON and JSON-LD while accommodating various RDF ontologies; it boasts a scalable, cloud-native architecture utilizing a lightweight Java runtime, with individually scalable ledger and graph database components, embodying a "Data-Centric" ideology that treats data as a reusable asset independent of singular applications, underpinned by an immutable ledger that secures transactions with cryptographic integrity, alongside a rich RDF graph database capable of various queries, and employs SmartFunctions for enforcing data management rules, including identity and access management and data quality.

Clarity is a scalable, customizable, open source design system bolstered by the people that build with it, the people we build it for, and the community that makes us who we are. Our toolkit is Figma. Every component, pattern, and guideline we ship is rooted in real customer interactions. As a result, you can rely on Clarity for 30+ components and over 200 icons so you can focus on product-specific user problems. The first folx that built Clarity from scratch were a scrappy team of developers, designers, and content creators. Clarity has continued to grow on that strong start by supporting the big three: Angular, React and Vue. Our latest Core components provide support for them all. Clarity provides code examples and detailed API documentation that guide you as you build your next application.

CVXOPT is a free software package for convex optimization based on the Python programming language. It can be used with the interactive Python interpreter, on the command line by executing Python scripts, or integrated in other software via Python extension modules. Its main purpose is to make the development of software for convex optimization applications straightforward by building on Python’s extensive standard library and on the strengths of Python as a high-level programming language. Efficient Python classes for dense and sparse matrices (real and complex), with Python indexing and slicing and overloaded operations for matrix arithmetic. Interfaces to the linear programming solver in GLPK, the semidefinite programming solver in DSDP5, and the linear, quadratic and second-order cone programming solvers in MOSEK.

Float UI empowers non-designers to create sleek, modern websites with ease, thanks to its user-friendly interface and open-source design components. Float UI is a platform that allows users to create modern websites without requiring design knowledge. The platform is open source and free, making it accessible to everyone. It includes a collection of responsive user interface components and website templates with modern designs, making it easy for users to develop websites quickly. With Float UI, users can optimize their website development projects and achieve professional results.

At Ripplix, we’re passionate about the small details that make digital products truly delightful. In a world filled with interfaces, it’s often the subtle animations and thoughtful micro-interactions that create a lasting impression. They make apps feel alive, guide users effortlessly, and elevate the overall experience. Ripplix was born from the idea that these moments—these “ripples” in design—deserve their own spotlight. Our platform is a curated library of UI animations and micro-interactions sourced from real-world digital products. From smooth hover effects to clever transitions and satisfying loading states, Ripplix showcases the kind of design polish that turns good products into great ones.

A free and open-source collection of lightweight JavaScript plugins, combining several common tools in a single package to facilitate the acceleration of web application development.

WebDataRocks is a simple free JS library for creating functional and easy-to-use pivot tables. It can be used with Angular, Vue, React or any other framework. Free Flexible in customization JavaScript based client-side component Loads 1MB of JSON or CSV data files Full set of enterprise features Integration with 3rd party charting libraries Full set of enterprise features Features like filtering, sorting, grouping, conditional and number formatting, calculated values, totals are available for efficient work with your data. It supports printing or exporting web report to PDF, Excel or HTML with just one click. Ready-to-use modern UI The tool offers a classy spreadsheet-like interface optimized both for browsers and apps. All principles of reliability and excellent user experience are already implemented in this web reporting tool.

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.