7 Best C# Web Scraping Libraries in 2026 (Compared & Ranked)

Choosing the right C# web scraping library in 2026 means understanding a fundamental shift: most production websites now deploy sophisticated anti-bot detection that traditional parsing libraries can’t handle. Html Agility Pack still works for static HTML, but modern JavaScript-heavy sites require browser automation or managed API solutions that can bypass Cloudflare, handle CAPTCHAs, and rotate proxies at scale. In this guide, I’ll compare the top C# web scraping library options available in 2026.