ZetaMarker - PDF & Web Highlighter

Highlight web pages and PDFs. Sync highlights with your ZetaMarker account.

Highlight web pages and PDFs, add notes, and build a searchable research library. Start locally with no account required, then sync across devices when you're ready. PERFECT FOR • Researchers • Students • Developers • Knowledge workers • Anyone who reads extensively online 🔒 PRIVACY-FIRST — YOU CHOOSE WHERE IT RUNS Many highlighter extensions ask for broad permission to "read and change all your data on all websites." ZetaMarker doesn't. ZetaMarker uses a limited-permission approach: it only runs on pages where you turn it on — with a click on the extension icon or a keyboard shortcut. It does not watch every tab you open, and it does not annotate sites you haven't activated. That means banking, email, healthcare portals, and work apps stay private by default. You invite ZetaMarker in only when you're ready to read and annotate. ✅ No account required to start ✅ Highlights save locally in your browser first ✅ Cloud sync is optional — sign in only when you want it ✅ We don't sell your data Learn more: https://zetamarker.com/docs/privacy-and-control WHY ZETAMARKER IS DIFFERENT 🔒 Privacy-first — page-by-page activation, not blanket site access ✅ No account required — start highlighting immediately after install 📄 Web pages & PDFs — one consistent workflow for articles and documents ☁️ Cloud sync — pick up on another browser or device when you're ready 🔍 Search everything — find any highlight, note, or page in your library 📤 Export your highlights — PDF, Markdown, HTML, or plain text HOW IT WORKS 1. Activate ZetaMarker on any web page or online PDF 2. Select text, pick a color, and add a comment 3. Review highlights in the sidebar — sort, jump to any highlight, copy notes 4. Sign in to sync to the cloud, organize in your dashboard, and export 📄 HIGHLIGHT WEB PAGES & PDFs • Five color-coded highlights with comments and page notes • Custom page titles to keep your library organized • Clean sidebar workspace — browse, sort, and navigate highlights without clutter • Copy one highlight or copy all with source URL and date • Light, dark, or system theme Online PDFs open in the built-in viewer with the same highlighting workflow as web pages. Local PDF files can be uploaded to your dashboard to highlight and sync (Pro). ☁️ CLOUD SYNC & WEB DASHBOARD (Pro) Your research library lives at app.zetamarker.com: • Sync highlights across browsers and devices • Full-text search across titles, URLs, notes, and comments • Hierarchical labels — nest and organize your way (Work → Projects → Research) • Star important pages and filter your library • Upload and annotate PDFs in the dashboard • Trash with restore — recover deleted pages • Bulk actions — label, star, delete, and export multiple pages • Overview analytics — see your reading patterns at a glance Local highlighting keeps working even when cloud sync is paused. 📤 EXPORT YOUR HIGHLIGHTS • Copy formatted highlights to clipboard from the extension • Export pages to PDF, Markdown, HTML, or TXT from the dashboard (Pro) • Bulk export from your library for reports, study notes, and backups (Pro) FREE VS PRO Free — highlight web pages and PDFs locally, forever. No account required. Pro — cloud sync, the full web dashboard, labels, search, export, and cloud PDF storage. Start with a 7-day free trial — no credit card required. See current plans: https://zetamarker.com/pricing WORKS ON CHROMIUM BROWSERS Install from the Chrome Web Store and use ZetaMarker on Chrome, Edge, Brave, and Opera. A dedicated Firefox extension is coming soon. GET STARTED • Getting started: https://zetamarker.com/getting-started • Documentation: https://zetamarker.com/docs • Web dashboard: https://app.zetamarker.com • Support: support@zetamarker.com YOUR DATA, YOUR CONTROL Your highlights and comments belong to you. We do not sell your data. Privacy Policy: https://zetamarker.com/legal/privacy Terms of Service: https://zetamarker.com/legal/terms Installing the extension or creating an account means you agree to ZetaMarker's Terms of Service. ZetaMarker helps with web highlighting, PDF annotation, research organization, optional cloud sync, and exporting your highlights.