9. Defuddle -- Web Content Extraction (kepano/defuddle)
GitHub·medium signal
From Obsidian creator Steph Ango (kepano). Extracts main content from web pages, removing clutter like comments, sidebars, headers, footers. Built for Obsidian Web Clipper but useful for any agent needing clean web content. More forgiving than Mozilla Readability, standardizes footnotes/code blocks/math, uses mobile styles to detect unnecessary elements. Now has defuddle.md -- prepend "defuddle.md" before any URL to get Markdown content. Core (browser, no deps), Full (math+markdown), Node.js bun