StudyLens – Word Highlighter & Focus Mode

Highlight your word lists on any website automatically. Custom colors, fonts & focus mode for deep reading. No account, no tracking.

StudyLens highlights the words you care about on every page you read. Create a list, add your terms, pick a color — and they appear marked automatically on any site you visit. No account, no sign-up, no server. WHAT YOU CAN DO • Build unlimited lists, each with its own background color, text color, font and style (bold, italic, underline, outline) • Focus mode — dims the entire page except the paragraphs that contain your terms, so you read only what matters • Right-click any selected text to add it to a list instantly • A counter on the toolbar icon shows how many matches are on the current page • Turn lists on or off individually, or block them on specific sites • Share a list with a classmate through a short text code — the other person needs no account either • Import and export everything as a JSON file • Dark and light theme, Spanish and English interface WHO IT IS FOR Students learning vocabulary in another language. Researchers tracking terminology across papers. Professionals scanning long documents for the terms that matter to them. PRIVACY StudyLens does not collect, transmit or sell any data. Your lists are stored by your own browser and sync across your devices through your Google account — we never see them. There is no backend and no analytics. WHY IT ASKS FOR ACCESS TO ALL SITES The whole purpose is to mark your terms on any page you open, so the extension needs to read the text of the pages you visit. It reads that text only to find your own terms. Nothing is stored, sent or shared. Every feature is included. Nothing is locked behind a payment.