CSS CSS

Open-source CSS projects categorized as CSS

Top 23 CSS CSS Projects

  1. animate.css

    🍿 A cross-browser library of CSS animations. As easy to use as an easy thing.

    Project mention: Bring Your Angular App to Life with Anime.js | dev.to | 2025-08-19

    With recent updates to the Angular framework, it is now recommended to move away from the @angular/animations package in favor of simpler alternatives using CSS or JavaScript. Many common animations can be accomplished with a pure CSS solution, however, JavaScript may be necessary for more complex animations. Additionally, third-party libraries, such as the CSS-based Animate.css or the JavaScript-based Anime.js, GSAP, and Popmotion, can be utilized for more advanced use cases.

  2. SaaSHub

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  3. normalize.css

    A modern alternative to CSS resets

    Project mention: Just Use a Button | news.ycombinator.com | 2025-10-31
  4. Bulma

    Modern CSS framework based on Flexbox

    Project mention: Bulma VS Nakshora - a user suggested alternative | libhunt.com/r/bulma | 2026-04-18
  5. AdminLTE

    AdminLTE - Free admin dashboard template based on Bootstrap 5

    Project mention: AdminLTE 4.0.0 – first stable release of the v4 line | news.ycombinator.com | 2026-05-26
  6. pico

    Minimal CSS Framework for semantic HTML

    Project mention: µCSS: I built a full-featured CSS framework on top of PicoCSS | dev.to | 2026-03-11

    I ended up choosing PicoCSS. It's beautiful, semantic, accessible, and weighs only 11KB. Most HTML elements look great with zero CSS classes. For simple projects, it's perfect.

  7. ratchet

    Build mobile apps with simple HTML, CSS, and JavaScript components.

  8. tachyons

    Functional css for humans

    Project mention: Vanilla JavaScript Support for Tailwind Plus – Tailwind CSS | news.ycombinator.com | 2025-07-25

    Tachyons CSS was also around at the same time but Tailwind had simpler naming conventions so instead of `br4` you had `rounded-lg`.

    1. https://tachyons.io/

  9. Spectre.css

    Spectre.css - A Lightweight, Responsive and Modern CSS Framework

  10. 98.css

    A design system for building faithful recreations of old UIs

    Project mention: Show HN: Windows 7 GUI for the Web | news.ycombinator.com | 2025-07-27
  11. photon

    The fastest way to build beautiful Electron apps using simple HTML and CSS

  12. GitHub-Dark

    :octocat: Dark GitHub style

  13. jupyter-themes

    Custom Jupyter Notebook Themes

  14. awesome-css-frameworks

    List of awesome CSS frameworks in 2026

  15. hint.css

    A CSS only tooltip library for your lovely websites.

  16. pokemon-cards-css

    A collection of advanced CSS styles to create realistic-looking effects for the faces of Pokemon cards.

    Project mention: Implementing a Foil Sticker Effect | news.ycombinator.com | 2025-09-01
  17. magic-of-css

    A CSS course to turn you into a magician.

  18. spicetify-themes

    A community-driven collection of themes for customizing Spotify through Spicetify - https://github.com/spicetify/cli

  19. basscss

    Low-level CSS Toolkit – the original Functional/Utility/Atomic CSS library

  20. You-need-to-know-css

    💄CSS tricks for web developers~

  21. sanitize.css

    A best-practices CSS foundation

    Project mention: Normalize.css | news.ycombinator.com | 2025-10-24

    I always preferred to use sanitize.css, which is the same thing except it also makes sure everything looks pretty good.

    https://csstools.github.io/sanitize.css/

  22. css-animation-101

    Learn how to bring animation to your web projects

  23. balloon.css

    Simple tooltips made of pure CSS

  24. cssnano

    A modular minifier, built on top of the PostCSS ecosystem.

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).

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CSS CSS related posts

  • I Updated Virtual Bookshelf

    2 projects | news.ycombinator.com | 18 May 2026
  • Moving away from Tailwind, and learning to structure my CSS

    6 projects | news.ycombinator.com | 16 May 2026
  • colors VS Nakshora - a user suggested alternative

    2 projects | 18 Apr 2026
  • lcars VS Nakshora - a user suggested alternative

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  • Bulma VS Nakshora - a user suggested alternative

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  • Show HN: Blades CSS – Framework-agnostic, class-light CSS⁺ kit inspired by Pico

    1 project | news.ycombinator.com | 16 Apr 2026
  • µCSS: I built a full-featured CSS framework on top of PicoCSS

    4 projects | dev.to | 11 Mar 2026
  • A note from our sponsor - SaaSHub
    www.saashub.com | 8 Jun 2026
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Index

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

# Project Stars
1 animate.css 82,529
2 normalize.css 53,531
3 Bulma 50,072
4 AdminLTE 45,440
5 pico 16,639
6 ratchet 14,660
7 tachyons 11,711
8 Spectre.css 11,335
9 98.css 11,091
10 photon 10,080
11 GitHub-Dark 9,907
12 jupyter-themes 9,824
13 awesome-css-frameworks 9,361
14 hint.css 8,451
15 pokemon-cards-css 7,646
16 magic-of-css 6,685
17 spicetify-themes 5,971
18 basscss 5,897
19 You-need-to-know-css 5,450
20 sanitize.css 5,294
21 css-animation-101 5,069
22 balloon.css 5,021
23 cssnano 4,968

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Did you know that CSS is
the 19th most popular programming language
based on number of references?