Margin — Local Web Highlighter

Highlight, annotate and export your research. Local storage with optional Google Drive sync. No subscriptions or tracking.

Margin is a free, open-source web highlighter and research library. Highlight passages on web pages and PDFs, add written or voice notes, and find them later with full-text search. Organize your sources into collections, save articles for offline reading, and pick up where you left off in an article or PDF. Import Markdown, export notes to Markdown or Notion, or make a full JSON backup. Your library is stored on your device by default. You can optionally connect Google Drive to sync your library and reading positions across browsers. Core features work without an account or subscription.