Highlight web text, PDFs, add notes, and automatically save highlights across refreshes.
Users
9
+4 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#200K
#167K among extensions
Version
1.2
updated 9 Aug 2026
Users
monthly, 3 months
Latest, 17 Oct 2026:9 usersMove the mouse over the chart for any month
Ratings count
monthly, 3 months
Latest, 17 Oct 2026:2 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About WOW Highlighter – Web & PDF Highlighter
Highlight text on websites and PDF documents, save notes, organize your research, and create study flashcards—all in one lightweight Chrome extension.
WOW Highlighter helps you capture important information while reading online or working with PDFs. Highlight text, add notes, organize everything in a searchable library, and review your knowledge with built-in flashcards. Your data stays private and is stored locally in your browser.
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✨ Highlight Websites & PDFs
• Highlight text on websites and PDF documents
• Select individual words, sentences, or paragraphs
• Choose from 8 highlight colors to organize information
• Floating toolbar for quick highlighting
• Highlights automatically reappear after page reloads and browser restarts
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📄 Built-in PDF Reader
Read and highlight PDF documents directly in Chrome.
• Open local or online PDF files
• Continuous and single-page viewing modes
• Dark mode support
• Zoom controls and page navigation
• Thumbnail sidebar for quick access
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📝 Notes
Add notes to any highlight to save ideas, reminders, or context while reading.
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🎴 Flashcards
Turn highlights into study flashcards with one click.
• Create flashcards from websites and PDFs
• Review cards using built-in spaced repetition
• Mark cards as Remembered or Practice Needed
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📚 Library
Keep all your highlights organized in one place.
• Search highlights instantly
• Browse by page or highlight color
• Rename document sections
• Jump back to the original highlighted text
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🔒 Privacy
WOW Highlighter works entirely inside your browser.
• No account required
• No tracking
• No advertisements
• All highlights, notes, and flashcards are stored locally
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💾 Backup & Restore
Export your data as a backup file and restore it whenever needed.
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Getting Started
1. Select text on a website or PDF.
2. Choose a highlight color or create a flashcard.
3. Add notes whenever needed.
4. Open the library to search, organize, and review your highlights.
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Important
• Refresh existing tabs after installing the extension.
• Chrome extensions do not run on Chrome Web Store pages.
• If highlights do not appear immediately, refresh the webpage.