Notebook Highlighter
Offline-first Chrome extension for highlighting websites and PDFs, attaching notes and tags, saving bookmarks, searching across everything, exporting clean copies, using reader mode, and optionally summarizing with your own AI key.
Price
Free
Access
Digital
Key Features
- check_circle Highlight any website and restore those highlights when you revisit the page
- check_circle Highlight PDF files too, including local PDFs opened through the bundled PDF viewer
- check_circle Attach notes and tags to highlights, bookmark pages, and search across your saved reading library
- check_circle Reader mode strips clutter and keeps a clean copy available for offline re-reading
- check_circle Export your material to Markdown, HTML, PDF, Obsidian, Notion, or Capacities
- check_circle Optional AI summary and chat use your own API key instead of an NHR Soft account
- check_circle Offline-first local storage with no analytics, no sign-up, and no developer-run cloud backend
Turn the web into an annotated notebook
Notebook Highlighter is built for people who read, research, and revisit material across websites and PDFs.
- arrow_right_alt Highlight selected text on websites with multiple colors and saved context
- arrow_right_alt Open PDFs in the extension viewer and annotate them with the same flow
- arrow_right_alt Store notes, tags, bookmarks, reminders, and saved article snapshots in one local library
Search, organize, and revisit later
The side panel and library are designed to make old highlights usable instead of forgotten.
- arrow_right_alt Search across highlight text, tags, notes, page titles, and saved items
- arrow_right_alt Bookmark pages and import existing Chrome bookmarks when the user chooses
- arrow_right_alt Set reminders to return to an article later and keep AI chat history per page
Offline-first by default
Core reading and annotation features are designed to stay inside the browser and keep data under the user control.
- arrow_right_alt Highlights, notes, bookmarks, reader copies, reminders, and settings live in local browser storage
- arrow_right_alt No NHR Soft server receives reading history, highlights, or API keys
- arrow_right_alt Optional sync, Notion export, and AI requests send data only to destinations the user configures
Export for real reading workflows
Notebook Highlighter is not only for marking text in the browser. It also helps move research into writing and note-taking systems.
- arrow_right_alt Generate Markdown, HTML, and PDF exports on-device
- arrow_right_alt Send structured content to tools such as Obsidian, Notion, and Capacities
- arrow_right_alt Preserve multilingual text with proper font support for many scripts in PDF export