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Web highlights, annotations, page notes, and export tools for AI chats and web reading. Do questions, insights, or follow-up prompts occur to you while reading, only to disappear a moment later? Cat Highlighter is designed for this exact workflow: read, think, and organize. Highlight, underline, annotate, and write page notes directly on web pages and AI chat pages. Each page or conversation is saved separately, so your highlights can be restored after refreshing or reopening. With Cat Highlighter, you can: - Highlight important sentences on web pages and in AI responses. - Use different highlight colors to organize different types of information. - Add annotations to individual highlights. - Write page notes to capture questions, summaries, prompts, and action items. - Review, search, filter, and organize saved records on the management page. - Export your highlights, annotations, and notes to Markdown, HTML, Mowen, Notion, Obsidian, or SiYuan. Cat Highlighter is especially useful for people who: - Frequently use ChatGPT, Gemini, Kimi, DeepSeek, Perplexity, Comet, and other AI tools. - Read long articles, reports, research materials, or documentation. - Want to turn AI conversations into structured notes. - Need to capture thoughts and key points while reading. Cat Highlighter is not another complicated knowledge base. It is a lightweight tool that helps you capture ideas while you read and chat with AI. By default, all highlights, annotations, page notes, and settings are stored locally in your browser. Content is only sent to third-party services when you explicitly choose to export it.
Web Highlights: PDF & Web Highlighter + Notes & AI Summary
Productivity Highlighter & Annotation Tool for Websites & PDFs with AI Summary - free, easy to use, no sign-up required. Stay organized online with Web Highlights — a powerful Chrome extension to highlight text on websites, annotate PDFs, take notes, manage bookmarks, and generate AI summaries of your content. Whether you're a student, blogger, developer, researcher, or lifelong learner, Web Highlights helps you stay productive, save, organize, and revisit what matters — all in one place. Use it as your personal text highlighter for Chrome with smart note-taking, PDF annotation, tagging, full-text search, and AI-powered content summarization. Choose offline use or sync everything to the cloud via the web app. 🟢 Highlight websites and PDFs (including local files) 🎨 Multiple highlighter colors ✍️ Take notes and connect them with your highlights 🤖 AI Summary - Generate smart summaries of your highlights and websites 💬 AI Chat - Our AI understands the full context of the website, so you can chat with it and ask questions. 🔖 Save pages as bookmarks or use as a read-it-later web clipper tool 🏷️ Tag your highlights & bookmarks for easy filtering 🎥 Youtube Highlighting - Highlight & annotate Youtube video transcripts 🔄 Sync across devices and access highlights anywhere * 💻 Web app & sidebar with an overview of all your highlights, bookmarks, and notes 📖 Reader mode for focused and distraction-free article reading & annotating 🗂️ Import all your existing Chrome bookmarks 🔍 Powerful full-text search to find anything instantly 📷 Highlight images and visual elements * 𝐓 Highlight in various formats (headings, paragraphs, etc.) * 🧠 Daily recap of your highlights for better retention ⚡ Use keyboard shortcuts for ultimate productivity 📄 Export to Notion, Obsidian, Capacities, and other popular note-taking tools 📑 Copy to HTML and Markdown 📁 Export to PDF and HTML files * 📱 Bookmark on mobile with our web app * ⏰ Set email reminders for specific pages * 📚 Import Kindle highlights easily 💾 Backup and download your research * 🔗 Share your highlights * 👥 Discover content from others ✅ It just works – Highlight text in multiple colors on any website or PDF with a simple click. ✅ Persistent highlights - Your highlights stay visible even after reloading the page. ✅ Works offline – No account required for basic use. ✅ Sync across devices - Create an account to access your highlights anywhere from the web app. ✅ Unlimited AI summaries – Unlike other tools, we don’t place any limits on AI features. ✅ Reader Mode – Enjoy clean, distraction-free reading and keep a simple copy of articles. ✅ Integrate with Notion, Capacities, Obsidian, and other note-taking tools. ✅ Export your research — PDF, HTML, Markdown, or clipboard. ✅ Perfect for online deep work & and efficient research management. ✅ Help children learn - We proudly support the Save the Children charity and other great causes. You can use Web Highlights completely free without an account. Highlight, bookmark, and take notes offline anytime. Create a free account to enable cloud sync and unlock all features with a 7-day trial. Afterward, continue using the free offline version with basic features or upgrade for seamless access across all devices. Check out the current pricing here: https://web-highlights.com/pricing. ➡️ Enable/disable the highlighter popup via the settings and highlight using keyboard shortcuts or by right-clicking text. ➡️ Customize keyboard shortcuts at chrome://extensions/shortcuts ➡️ Some websites may have limited compatibility. ➡️ Local PDF support requires access to file URLs (see PDF setup guide: https://web-highlights.com/blog/how-to-highlight-pdfs-using-web-highlights). ➡️ Right-click images to save them to your sidebar of highlights & notes. ➡️ Use as a web clipper – Click the bookmark icon or right-click any website to save pages and add tags like "ReadingList" for easy reference later. ➡️ Disable extension on specific websites: Click the power icon in the sidebar to disable the highlighter on a site. You can also configure a blacklisted domain list with patterns in the settings under "Excluded" domains. ➡️ Sort highlights manually: Highlights should appear in the same order as on the page. If not, use the drag & drop or arrows in your annotation sidebar to rearrange them as needed. ➡️ Customizable Sidebar: Change the sidebar width by dragging its edge, and align it on the left or right side of the page for a personalized experience. ➡️ Switch to Advanced Highlighter Mode in settings to organize highlights with headings, paragraphs, and more in the sidebar. ➡️ Multiple Colors: Choose from predefined standard and pastel shades or click the plus icon to add your own custom color. ➡️ Note Taking: Use standard keyboard shortcuts like CMD + B for bold, CMD + U for underline, etc., in the note-taking editor for efficient formatting. ➡️ Reader Mode: Click “Open in Reader” to view any article in a clean, distraction-free layout with customizable fonts, colors, and spacing. A copy of the article is saved so you can read and highlight it with full focus — even if the original changes or disappears. ➡️ Focus highlights on website: Click on a highlight in the sidebar, and the page will scroll directly to the highlighted section for quick access. ➡️ Color Mode: Switch between dark and light mode by clicking the sun/moon icon in the sidebar. ➡️ Your data is always private unless you choose to share it. ➡️ You may be exposed to affiliate links on sites you visit while using this extension, and you may be encouraged to click on them, but you are never required to do so. 🔐 YOUR PRIVACY MATTERS We believe your data belongs to you. ✔️ Your highlights, notes, and bookmarks are private by default ✔️ Nothing is ever sold or used to profile you ✔️ Secure sync and export, only accessible with your account We never use your data for advertising, lending, or unrelated purposes. By installing the extension or signing up with an account, you agree to Web Highlights Terms of Service and Privacy Policy which you can find here: https://web-highlights.com/legal/terms-of-service ❤️ This is a one-person project I’m building with love and late nights. I hope you enjoy using this tool as much as I do. Feel free to share your feedback with me:
Web Highlighter – Highlight Text, Save Notes & AI Study Tool
Highlight text. Save notes. Learn faster. Turn any webpage into organized, searchable knowledge in seconds. Highlight text, save it automatically, and use AI to understand and remember what matters. The best free highlighter extension and annotation tool for Chrome — a powerful Liner alternative, Weava alternative, and Glasp alternative built for students, researchers, and professionals. ⚡ Why install Web Highlighter? ✔ Highlight text on any website instantly ✔ Automatically save and organize highlights ✔ Turn highlights into structured notes ✔ Export to Notion, Google Docs, Obsidian & Markdown ✔ Clean dashboard to manage everything in one place ✔ Fast, lightweight, and distraction-free ✔ Privacy-first — no tracking, no data selling 🤖 AI-Powered Study Tools Go beyond basic highlighting and text annotation. ✔ Generate AI summaries from your highlights ✔ Turn highlights into flashcards and study material ✔ Create quizzes from your reading notes ✔ Auto-generate tags and study guides ✔ Ask questions about your highlights and get cited answers Stop rereading. Start understanding. 📚 Built for studying, research & productivity Whether you're: ✔ Studying for exams or taking online courses ✔ Taking notes from articles, blogs, or research papers ✔ Doing academic research or literature reviews online ✔ Collecting quotes, citations, and ideas ✔ Organizing knowledge for work or school projects ✔ Annotating web pages and PDFs ✔ Building a personal knowledge base or second brain This web highlighter extension helps you capture, organize, and remember information effortlessly. 🎯 Simple, fast, and actually useful Most highlighter extensions and note-taking tools are too complicated, slow, or cluttered. This one is different. ✔ Minimal design — clean and modern interface ✔ Instant one-click highlighting with keyboard shortcuts ✔ Multiple highlight colors for color-coded organization ✔ Works on any website — articles, documentation, blogs, research papers It feels like using a real highlighter — but smarter. 🧩 Key Features ✔ Highlight text on any webpage with multiple colors ✔ Automatic saving across tabs and sessions ✔ Organize highlights by project, page, color, or date ✔ Powerful search and filtering across all highlights ✔ Export to Notion, Google Docs, Obsidian, Markdown, CSV, JSON ✔ Share highlights via public or private links ✔ AI summaries, flashcards, quizzes, and study tools ✔ Cloud sync across devices (Pro) ✔ Bibliography export in MLA, APA, and Chicago format ✔ Lightweight and fast — no bloat, no lag 🔒 Privacy First Your data stays yours. ✔ No tracking ✔ No selling data ✔ No unnecessary permissions ✔ Local storage by default — everything stays on your device Just a clean, private web highlighter experience. 💡 Who is this for? ✔ Students looking for a free study tool or exam prep extension ✔ Researchers who need to annotate and organize web sources ✔ Professionals who read articles and want to save key takeaways ✔ Anyone who wants a better way to bookmark, clip, and highlight online content ✔ Users looking for a Liner alternative, Weava alternative, Glasp alternative, or Hypothesis alternative 🆚 Why choose Web Highlighter over other text highlighter extensions? ✔ Free with no sign-up required — start highlighting immediately ✔ AI-powered features most highlighters don't have ✔ Export to more apps than any other free highlighter ✔ Privacy-first with local storage — your highlights never leave your device ✔ Lightweight — won't slow down your browser 🌐 Website https://highlighter.lovable.app
Web Annotator - Webpage Highlight Notes
Add text notes, sticky notes, drawings, and auto highlights on any webpage Web Annotator: Your private, local web knowledge base. Capture ideas and organize notes directly in your browser. 1. Add text highlights, sticky notes, image notes, link notes, and page notes on any webpage 2. Draw directly on webpages and save as notes, with support for editing drawings 3. Built-in tools to make all text and images selectable and top-layer for easy note-taking 4. Customize tags, colors, and styles for notes, including background, underline, wavy line, and strikethrough 5. View notes in a tree structure organized by website and path 6. All notes automatically capture webpage snapshots to preserve context 7. 100% local data storage with one-click import/export and WebDAV sync support
Souli - PDF & Web Highlighter with Notes
✏️ One-Click Highlight & Note-Taking! Annotate, underline, highlight, add sticky notes & capture ideas on any webpage/PDF… Take notes your way, as smooth as pen on paper! 🔄 Refresh Without Fear! All annotations auto-restore—your knowledge never gets lost! 📁 Dedicated Data Management Panel: Easily organize & find your notes. 🔒 Local Data Processing: Ensures maximum privacy and instant speed! 🤖 AI-Powered Assistant: Get smart summaries & instant answers—build your ultimate productivity toolkit! - 🔥 Seamless highlighting on web pages, PDFs (including local files), and images - 🔥 Layered annotations - add multiple highlights on same text segments - 🔥 Multi-color & multi-brush options for enhanced reading experience - 🚀 Smart URL resolution for content appearing under different URLs - 🚀 Comment system & sticky notes for capturing reading insights - 🚀 Keyword search & auto-highlighting for important content identification - ❤️ Backend management: edit notes, add tags, organize by folders - ❤️ Markdown-compatible input integrates smoothly with AI tools - ❤️ A hotkey system that just works — powerful, yet dead simple - 🔥 Page/notes explanation & summarization with interactive Q&A - 🔥 Flexible AI provider configuration (OpenAI, Ollama, etc.) - ❤️ Custom prompt templates enhance reading workflows during highlighting - 🔥 Encrypted synchronization for secure data handling - 🚀 Export options: plain text, Markdown, OpenAPI integration - 🚀 Third-party compatibility with apps like Obsidian