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CSS GitHub Repositories (2026) · Open Source Tools

Discover the best CSS open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.

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106 matching projects · updated Nov 13, 2026 How we rank ↗

#101 TRENDING SasanLabs/VulnerableApp Java 2019

OWASP VulnerableApp Project: Break it. Scan it. Reproduce it. Benchmark against it. Improve it.

◇ appsec ◇ benchmark ◇ burpsuite ◇ css

799 ↑ +1 today

#102 TRENDING w3c/webref JavaScript 2017

Machine-readable references of terms defined in web browser specifications

◇ css ◇ definitions-data ◇ idl ◇ web-platform

141 ↑ +1 today

#103 TRENDING bitfoundation/bitplatform C# 2016

Build all of your apps using what you already know and love ❤️

◇ aspnetcore ◇ bitplatform ◇ blazor ◇ csharp

266 ↑ +1 today

#104 TRENDING macbre/phantomas JavaScript 2012

Headless Chromium-based web performance metrics collector and monitoring tool

◇ automation ◇ chromium ◇ css ◇ developer-tools

133 ↑ +1 today

#105 TRENDING diffplug/spotless Java 2015

Keep your code spotless

◇ css ◇ formatter ◇ gradle ◇ groovy

564 ↑ +1 today

#106 TRENDING jzfgo/jzfgo.github.io CSS 2010

Just a simple website to hold the spot while I develop the full bloated one

◇ css ◇ html ◇ personal-website

0 ↑ +1 today

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