CSS Security

Open-source CSS projects categorized as Security
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Top 6 CSS Security Projects

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  1. winscript

    Open-source tool to build your Windows script from scratch. It includes debloat, privacy, performance & app installing scripts.

    Project mention: O&O ShutUp10 – The antispy tool for Windows 10 and 11 | news.ycombinator.com | 2026-09-04

    Open-source alternatives that offer similar functionality:

    - WinScript: https://winscript.cc/

    - Winhance: https://winhance.net/

    I find O&O ShutUp10 easier to use and understand.

  2. AppSignal

    AppSignal knows why the f*#k it crashed. Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.

    AppSignal logo

  3. research-threats

    Collection of legal threats against good faith Security Researchers; vulnerability disclosure gone wrong. A continuation of work started by @attritionorg

  4. azure-mask

    A browser extension (Chromium, Firefox) that toggles concealment of sensitive information found in the Azure Portal web page such as Subscription Id's

  5. xss-demo

    Simple flask website to demonstrate reflected and stored XSS attacks.

  6. fusionauth-example-modern-guide-to-oauth

    The example application paired with the Modern Guide to OAuth

  7. browser-extension

    Browser extension for Firefox, Chrome, Brave, Edge, Vivaldi, and Safari, to quickly use Safelyx. 🌍💻 (by safelyx)

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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  • A note from our sponsor - AppSignal
    www.appsignal.com | 10 Oct 2026
    Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise. Learn more →

Index

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

# Project Stars
1 winscript 2,929
2 research-threats 328
3 azure-mask 293
4 xss-demo 29
5 fusionauth-example-modern-guide-to-oauth 27
6 browser-extension 1

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AppSignal knows why the f*#k it crashed.
Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.
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