Mark — Web Highlighter

You read something important. You meant to save it. You didn't. Mark fixes that. Select any text on any page — a color toolbar appears, you pick a color, and the highlight is saved permanently in Chrome. No signup screen. No loading spinner. No subscription that expires. Come back tomorrow or next year — your highlights are exactly where you left them. ── WHAT MAKES MARK DIFFERENT ── ✦ No account. No server. No tracking. Everything stored locally — only you can read it. ✦ Works on any website: articles, docs, academic papers, Substack, Medium, Wikipedia. ✦ Injects a searchable transcript panel on any YouTube video. Highlights store the exact timestamp — click a highlight in the panel to jump to that moment. ✦ 7-day activity strip shows your reading momentum at a glance. ── HIGHLIGHTS ── • Four colors: yellow, green, blue, red — use them to signal meaning • Add private notes to any highlight • Keyboard shortcuts: Alt+1–4 to highlight, Escape to dismiss • Right-click any image to clip it to your collection • Search and filter all highlights across every saved page • Hover any highlight to edit, recolor, or delete ── EXPORT ── • Markdown — clean .md file with color labels, notes, and timestamps • Obsidian — > [!quote] callout blocks, ready to paste into your vault • Notion — push directly to any page via your integration token • HTML Notebook — beautiful standalone offline file with TOC and key summary • Per-page export — click ↓ next to any page to export just that page ── YOUTUBE TRANSCRIPTS ── A Transcript button appears in YouTube's action bar on every video with captions. Click to open a searchable panel — switch languages, search within the transcript, highlight any line. The exact video timestamp is stored with the highlight so you can jump back to that moment from the panel. ── PRIVACY ── Mark uses chrome.storage.local exclusively. No data ever leaves your browser. The only outbound requests are: • Google's favicon API (for page icons in the panel) • Notion API — only when you explicitly trigger a Notion export Zero analytics. Zero telemetry. Zero accounts. Zero subscriptions. Mark is free. Always.