Open source css projects

Every project in the registry tagged css, ranked by real GitHub adoption.

projects 9 combined stars ★ 81K refresh nightly
01 parcel ★ 44K

The zero configuration build tool for the web. 📦🚀

last push11 days ago languageJavaScript licenseMIT
02 jsoup ★ 11K

jsoup: the Java HTML parser, built for HTML editing, cleaning, scraping, and XSS safety.

last push19 hours ago languageJava licenseMIT
03 Instatic ★ 8.7K

The open-source alternative to Webflow, Framer and WordPress. Agentic self-hosted visual CMS outputting clean static pages. Users, roles, plugins, content, data

last push4 days ago languageTypeScript licenseMIT
04 lightningcss ★ 7.7K

An extremely fast CSS parser, transformer, bundler, and minifier written in Rust.

last push8 days ago languageRust licenseMPL-2.0
05 LittleLink ★ 3.1K

Create your own link-in-bio page with 100+ branded buttons

last push2 months ago languageHTML licenseMIT
06 guiadofrontend ★ 2.9K

Guia de Front-end: trilhas, cursos, livros, canais, ferramentas e comunidades para você entrar e evoluir na área.

last push15 days ago language licenseMIT
07 guiadobackend ★ 2.4K

Guia de Back-end: trilhas, cursos, livros, canais, ferramentas e comunidades para você entrar e evoluir na área.

last push15 days ago language licenseMIT
08 wallace-cli ★ 643

Pretty CSS analytics on the CLI

last push7 days ago languageTypeScript licenseMIT
09 Darkwrite ★ 315

Distraction-free note-taking with powerful features

last push2 days ago languageTypeScript licenseAGPL-3.0

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Frequently asked questions

How many open source css projects are there?

This registry tracks 9 projects tagged css, with 81,180 GitHub stars between them. The most-adopted is parcel at 44,025 stars.

Are these css projects free to use?

Yes — 9 of the 9 carry an explicit open-source licence across 3 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which css project should I choose?

The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.

Are these css projects still maintained?

9 of the 9 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.