PageNav

PageNav is a lightweight browser extension that makes long-form content easier to navigate. It scans headings on text-heavy pages, builds a clean floating outline, and helps readers jump directly to the section they need without losing their place. On YouTube, it turns transcripts into timestamped navigation so users can move through videos faster. It runs locally in the browser, stays lightweight on the page, and supports multiple reading-friendly themes. PageNav is freemium: free for normal text-heavy pages, with Pro unlocking YouTube transcript navigation.