About this tool

HTMLRadar turns an HTML document into a tracked link. Upload an HTML file or paste a URL you already host, create one link per recipient, and send it. The dashboard shows who opened it, which sections they read, how much active reading time they spent, and how far they scrolled. Sections are detected automatically from your markup, so long reports and slide decks work without tagging anything. Each share has its own password, expiry and allow-list (all editable after sending), plus an email gate and a revoke switch. No mouse tracking, no keystroke capture, no session replay. Open source under AGPL-3.0, self-hostable on Cloudflare and Supabase, and free for two tracked links on the hosted version, then $15 a month.