CSS UI Components

Open-source CSS projects categorized as UI Components

Top 16 CSS UI Component Projects

UI Components
  1. primereact

    The Most Complete React UI Component Library

  2. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

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  3. oat

    Ultra-lightweight, zero dependency, semantic HTML, CSS, JS UI library. ~8KB min+gz.

    Project mention: Oat – Ultra-lightweight, semantic, zero-dependency HTML UI component library | news.ycombinator.com | 2026-02-15
  4. flowbite-svelte

    Official Svelte components built for Flowbite and Tailwind CSS

  5. react-spinkit

    A collection of loading indicators animated with CSS for React

  6. rodal

    A React modal with animations.

  7. react-loaders

    Lightweight wrapper around Loaders.css.

  8. react-tabulator

    React Tabulator is based on tabulator - a JS table library with many advanced features.

  9. react-spinners-css

    Amazing collection of React spinners components with pure css

    Project mention: Getting Started with React Spinners CSS: Building Loading Indicators | dev.to | 2026-01-19

    React Spinners CSS is a lightweight library for creating CSS-animated loading spinners in React applications. It provides a collection of pure CSS spinners that are easy to use and customize, perfect for indicating loading states without JavaScript animations. This guide walks through setting up and creating loading spinners using React Spinners CSS with React, from installation to a working implementation. This is part 52 of a series on using React Spinners CSS with React. https://bit.cloud/joshk/react-spinners-css

  10. swiffy-slider

    Super fast carousel and slider with touch for optimized websites running in modern browsers.

  11. yesvelte

    YeSvelte UI component library for Svelte

  12. react-intense

    A React component for viewing large images up close 🔍

  13. react-date-select

    A React Date Select / Picker Input Component

  14. reactive-button

    3D animated react button component with progress bar.

  15. Neubrutalism

    A modern, minimalist CSS library that embraces bold design principles, high-contrast aesthetics, and a no-nonsense approach to web design. Inspired by the Brutalist architecture movement, this library focuses on raw, honest, and functional design.

  16. tailwind-hugo-starter

    Open-source HUGO starter project configured with Tailwind CSS and the UI components from Flowbite

  17. myt-react-notify

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

CSS UI Components discussion

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CSS UI Components related posts

  • Getting Started with React Spinners CSS: Building Loading Indicators

    2 projects | dev.to | 19 Jan 2026
  • PrimeReact: The Most Complete React UI Component Library

    1 project | news.ycombinator.com | 30 Aug 2024
  • Primereact: The Most Comprehensive React UI Component Library

    1 project | news.ycombinator.com | 15 Aug 2024
  • Build a Blog Website with ReactJs-PrimeReact and Hygraph Headless CMS

    1 project | dev.to | 7 Aug 2023
  • Is Chakra-UI still in use today? Or are there better libraries available now?

    2 projects | /r/reactjs | 14 Jul 2023
  • Web with pre-made components?

    2 projects | /r/react | 20 May 2023
  • Which React UI library is best for data dense enterprise application?

    1 project | /r/reactjs | 10 Apr 2023
  • A note from our sponsor - SaaSHub
    www.saashub.com | 12 Jun 2026
    SaaSHub helps you find the best software and product alternatives Learn more →

Index

What are some of the best open-source UI Component projects in CSS? This list will help you:

# Project Stars
1 primereact 8,314
2 oat 5,302
3 flowbite-svelte 2,763
4 react-spinkit 1,496
5 rodal 904
6 react-loaders 378
7 react-tabulator 376
8 react-spinners-css 333
9 swiffy-slider 263
10 yesvelte 223
11 react-intense 189
12 react-date-select 159
13 reactive-button 138
14 Neubrutalism 47
15 tailwind-hugo-starter 6
16 myt-react-notify 0

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