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Top 4 C# HTML and CSS Projects
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AngleSharp
:angel: The ultimate angle brackets parser library parsing HTML5, MathML, SVG and CSS to construct a DOM based on the official W3C specifications.
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ReSharper
ReSharper is now available in VS Code and Cursor. ReSharper brings a professional toolset for C# developers backed by over 20 years of experience, enterprise-grade security, SOC 2 compliance, and the trust of companies worldwide.
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HtmlAgilityPack
Html Agility Pack (HAP) is a free and open-source HTML parser written in C# to read/write DOM and supports plain XPATH or XSLT. It is a .NET code library that allows you to parse "out of the web" HTML files.
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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).
C# HTML and CSS discussion
C# HTML and CSS related posts
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Create GitHub profile viewer in web API c#
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Web Scraping With PowerShell
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Migration of a Dynamic Website to a Static Website
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Script invoking an Online Port Scan of your external IP, to test your firewall and port forwarder.
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Script to test the state of certain ports on your firewall from the outside
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What do .NET devs use for web scraping these days?
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Copy Pasting Email Content Issue
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A note from our sponsor - ReSharper
www.jetbrains.com | 8 Jun 2026
Index
What are some of the best open-source HTML and CSS projects in C#? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | AngleSharp | 5,499 |
| 2 | HtmlAgilityPack | 2,845 |
| 3 | dotless | 694 |
| 4 | ExCSS | 376 |