Sass

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Top 23 Sass Open-Source Projects

Sass

  1. Bootstrap

    The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

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

    Reminds me of what bootstrap [1] was like around a decade ago. It's gotten quite a bit bloated since then though.

    1. https://getbootstrap.com/

  2. SaaSHub

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  3. tabler

    Tabler is free and open-source HTML Dashboard UI Kit built on Bootstrap

  4. chatwoot

    Open-source live-chat, email support, omni-channel desk. An alternative to Intercom, Zendesk, Salesforce Service Cloud etc. 🔥💬

    Project mention: Chatwoot Pricing Teardown 2026 | dev.to | 2026-05-27

    GitHub: github.com/chatwoot/chatwoot

  5. Hover

    A collection of CSS3 powered hover effects to be applied to links, buttons, logos, SVG, featured images and so on. Easily apply to your own elements, modify or just use for inspiration. Available in CSS, Sass, and LESS.

  6. ngx-admin

    Customizable admin dashboard template based on Angular 10+

  7. @blueprintjs/core

    A React-based UI toolkit for the web

    Project mention: Palantir's secret weapon isn't AI – it's Ontology. An open-source deep dive | news.ycombinator.com | 2026-02-21

    I think their secret weapon is their opensource UI library.

    https://blueprintjs.com/

    I've been tracking this project since 2018. It hasn't changed drastically since then, but man it was polished and robust library.

  8. Primer

    Primer is GitHub's design system. This is the CSS implementation

  9. madge

    Create graphs from your CommonJS, AMD or ES6 module dependencies

    Project mention: Payload CMS Has 508 Circular Dependencies in 675 Files. Here's How Every Codebase Accumulates Them. | dev.to | 2026-05-30

    We ran madge across five major open-source JavaScript projects. Payload CMS has 508 circular dependencies in 675 TypeScript files. Next.js has 17 in 14,556. Twenty has zero.

  10. nebular

    :boom: Customizable Angular UI Library based on Eva Design System :new_moon_with_face::sparkles:Dark Mode

  11. hamburgers

    Tasty CSS-animated Hamburgers

  12. generator-angular-fullstack

    Yeoman generator for an Angular app with an Express server

  13. fontsource

    Self-host Open Source fonts in neatly bundled NPM packages.

    Project mention: Adding custom fonts to your Ember app with Fontsource | dev.to | 2026-04-02

    If you're running a modern Ember app with Embroider and Vite, adding custom fonts is easy. Fontsource is a good way to do it: fonts are packaged as npm dependencies, so you get versioned, self-hosted fonts with zero config on the bundler side.

  14. angular-electron

    Ultra-fast bootstrapping with Angular and Electron :speedboat:

  15. spotless

    Keep your code spotless

    Project mention: The Judgement Pyramid: Reasoning vs Measurement | dev.to | 2026-05-19

    Is this reasoning, or measurement? If measurement, push it to a deterministic tool. Sonar, Spotless, Ruff, ESLint, coverage gates, pre-commit hooks, complexity calculators. Write a script if no tool exists. That's how just lint got built, and that's the Unix-philosophy move for agentic coding. Hooks fire on tool calls; CI fires on PRs; pre-commit fires on commit. Pick the cheapest layer that catches the failure and run it there.

  16. balloon.css

    Simple tooltips made of pure CSS

  17. devportfolio

    A modern, minimalist portfolio template built with Astro and Tailwind CSS. Perfect for developers looking to showcase their skills, experience, and projects in a clean, professional way.

  18. csshake

    CSS classes to move your DOM!

  19. trunk

    Build, bundle & ship your Rust WASM application to the web.

    Project mention: Show HN: DAGraph – local-first reactive graph from arithmetic to OLAP SQL | news.ycombinator.com | 2026-05-13

  20. dart-sass

    The reference implementation of Sass, written in Dart.

  21. Flexbox-Labs

    A web app for creating flexible layouts with the power of CSS Flexbox.

  22. sass-loader

    Compiles Sass to CSS

  23. Dopefolio

    Dopefolio 🔥 - Portfolio Template for Developers 🚀

  24. sass-boilerplate

    A boilerplate for Sass projects using the 7-1 architecture pattern from Sass Guidelines.

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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Index

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

# Project Stars
1 Bootstrap 174,293
2 tabler 41,126
3 chatwoot 29,989
4 Hover 29,397
5 ngx-admin 25,894
6 @blueprintjs/core 21,798
7 Primer 12,959
8 madge 10,102
9 nebular 8,125
10 hamburgers 7,099
11 generator-angular-fullstack 6,097
12 fontsource 5,950
13 angular-electron 5,726
14 spotless 5,498
15 balloon.css 5,021
16 devportfolio 4,906
17 csshake 4,891
18 trunk 4,306
19 dart-sass 4,192
20 Flexbox-Labs 3,947
21 sass-loader 3,895
22 Dopefolio 3,700
23 sass-boilerplate 3,369

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