# TAGiT - Complete Documentation for LLMs > This is the comprehensive documentation file for TAGiT. For a concise overview, see llms.txt --- # TAGiT Overview You forget 90% of what you watch within a week. TAGiT helps you remember. TAGiT is a Chrome extension and Progressive Web App that transforms YouTube videos into lasting knowledge through AI-powered tagging, automatic Daily Digests, summaries, and flashcards using proven memory techniques like spaced repetition and active recall. TAGiT offers two ways to capture knowledge: - **Active Tagging**: Intentional moment capture (press Alt+T on Windows/Linux or Opt+T on Mac) - **Daily Digest**: Automatic AI-powered summaries of videos watched across any device—TV, phone, tablet, or computer Whether you're actively studying or passively watching, TAGiT ensures nothing valuable is lost. Built on 140 years of memory science (Ebbinghaus, 1885), TAGiT applies proven learning techniques that can improve retention by 75-92%. ## Key Features - **Active Tagging**: One-click capture during playback with AI-powered context-aware summaries - **Daily Digest**: Automatic email summaries of videos watched on any device, delivered at your scheduled time - **Smart Filtering**: Daily Digest automatically excludes Music, Sports, Gaming, Entertainment, and Shorts - **Cross-Device Intelligence**: Watch on TV, phone, or tablet—get AI insights delivered to your inbox - **AI Flashcards**: Auto-generated flashcards for spaced repetition from both tags and digests - **Chat with Videos**: Discuss any video from your digest with AI to go deeper - **Powerful Search**: Find any moment across all tagged videos instantly - **Export**: Download your knowledge to PDF & Markdown - **Cross-Device Sync**: Access your knowledge library anywhere ## Pricing **Free Tier:** - 25 AI-powered tags per month - 3 Daily Digests per month - Full feature access - Cloud sync included **Pro Plan - €4.99/month:** - Unlimited AI tags and summaries - Unlimited Daily Digests - Export to PDF and Markdown - Early access to new features No API keys required—all AI processing is handled server-side. ## Official Links - Website: https://tagit.video - Dashboard: https://app.tagit.video - Chrome Extension: https://chromewebstore.google.com/detail/tagit-video-bookmarking-a/bdicikdkiobadnneahpfpgmbgchppnfn - Pricing: https://app.tagit.video/pricing - Privacy Policy: https://tagit.video/privacy - Terms of Service: https://tagit.video/terms - Contact: adam@tagit.video --- # About TAGiT ## What is TAGiT? You forget 90% of what you watch within a week. TAGiT helps you remember. TAGiT is a Chrome extension and web app that transforms YouTube videos into lasting knowledge. With two powerful capture methods—Active Tagging for intentional moments and Daily Digest for automatic summaries—TAGiT ensures you never lose another insight, no matter how or where you watch. Whether you're a student, researcher, professional, or lifelong learner, TAGiT helps you build your personal YouTube knowledge library. ## Two Ways to Capture Knowledge ### Active Tagging Tag important moments with one click while watching. Press Alt+T (Windows/Linux) or Opt+T (Mac) to capture any moment, get instant AI summaries, and auto-generated flashcards. ### Daily Digest Watch videos on any device—TV, phone, tablet, computer—and receive AI-powered email summaries automatically. No tagging required. TAGiT analyzes your YouTube watch history and delivers personalized insights at your scheduled time. ## How It Works ### Active Tagging Flow 1. Watch YouTube - Browse videos as you normally would 2. Click When It Clicks - Press Alt+T the moment something important resonates 3. AI Generates Summaries - Instant transcript extraction and AI-powered insights 4. Remember Forever - Review with AI-generated flashcards using spaced repetition ### Daily Digest Flow 1. Watch Anywhere - TV, phone, tablet, or computer 2. TAGiT Tracks Automatically - Extension monitors your YouTube watch history 3. AI Processes Overnight - Smart filtering excludes music, sports, gaming, entertainment 4. Email Arrives - Personalized digest with summaries, insights, and flashcards at your chosen time ## Perfect For ### Students Taking notes from online lectures, educational content, and course videos—whether actively tagging or receiving daily summaries. ### Researchers Capturing insights from interviews, talks, and documentaries with precision timing or automatic tracking. ### Professionals Building knowledge bases from training videos and webinars watched across devices. ### Lifelong Learners Retaining knowledge from podcasts and educational channels without changing how you watch. ## Privacy & Security TAGiT takes your privacy seriously: - Your tags and notes are private by default - All data encrypted at rest and in transit - No selling of user data - GDPR compliant - YouTube watch history only accessed with your permission ## Technology Built with modern, reliable technology: - Frontend: React + TypeScript - Backend: Next.js + Supabase - AI: OpenAI GPT-4o mini (optimized for speed and cost) - Storage: PostgreSQL with Row Level Security - Hosting: Netlify + Supabase Cloud ## Our Mission TAGiT was created to solve a fundamental problem: you forget 90% of what you watch within a week. By combining AI assistance with proven memory science, TAGiT helps you transform passive video watching into lasting knowledge—whether you're actively engaged or just watching casually. Developed by Adam VisuAl+ (https://linkedin.com/in/adampetritsis), TAGiT is designed for anyone who learns from video content and wants to remember what they watch. --- # How to Use TAGiT A complete guide to using TAGiT for building your YouTube knowledge library—with both Active Tagging and Daily Digest. ## Video Tutorial Watch the 2-minute walkthrough: https://www.youtube.com/watch?v=1Ddrz82R-q8 ## Quick Start Guide ### 1. Install the Extension Download from Chrome Web Store: https://chromewebstore.google.com/detail/tagit-video-bookmarking-a/bdicikdkiobadnneahpfpgmbgchppnfn ### 2. Choose Your Capture Method TAGiT offers two ways to capture knowledge: - **Active Tagging** - For intentional moment capture while watching on your computer - **Daily Digest** - For automatic summaries of videos watched on any device You can use both methods together! ## Active Tagging Guide ### Tag Your First Moment 1. Navigate to any YouTube video (podcast, tutorial, lecture, etc.) 2. When you come across an interesting moment, press the Tag button or use the hotkey: - Alt + T (Windows/Linux) - Opt + T (Mac) 3. TAGiT will instantly generate a tag with AI summary and flashcards 4. You can edit your tag right from the YouTube interface once it's generated ### View Your Dashboard 1. Click the "View in Dashboard" button from the extension 2. This opens your personal TAGiT dashboard 3. Here you can manage all your tags and review your flashcards 4. You can also export all your data in multiple formats ## Daily Digest Guide ### What is Daily Digest? Daily Digest automatically captures and summarizes videos from your YouTube watch history—even videos watched on TV, phone, or tablet. You receive an AI-powered email with key insights, flashcards, and action items at your scheduled time. ### Enable Daily Digest 1. Open the TAGiT extension side panel 2. Navigate to Settings > Daily Digest 3. Toggle Enable Daily Digest to ON 4. Choose your delivery time (default: 7:00 AM) ### Configure Smart Filtering Daily Digest automatically excludes non-educational content: - Music videos - Sports highlights - Gaming content - Entertainment/variety - YouTube Shorts You can also customize filtering: **Open Mode (Default):** - All channels included except your blocked list - Add channels to block in Settings **Curated Mode:** - Only channels in your curated list are included - Perfect for focused learning from specific creators ### Personalize Your Digest 1. Go to Settings > Daily Digest 2. Add your Learning Bio - Tell TAGiT about your interests and goals 3. The AI uses this to personalize summaries and recommendations ### What's in a Daily Digest Email? Each digest includes: - Video summaries - Key concepts from each video - Key insights - The most important takeaways - Bonus insights - Hidden gems you might have missed - Action items - Concrete next steps - Book/video recommendations - Related resources to go deeper - Flashcards - Auto-generated for spaced repetition - Chat links - Discuss any video with AI ## Creating an Account To sync your data across all your devices: 1. Click to create an account and register with TAGiT 2. Sign up options: - Sign up with Google (recommended) - Sign up with email and password 3. All your tags and digests will now sync across devices ## Managing Tags ### View All Tags - Under the Tags tab, view all your generated tags - Tags include timestamp, transcript, AI summary, and flashcards ### Search Tags - Search with any keyword to find tags, flashcards, or videos - Instant results across your entire knowledge library ### Jump Back to Videos - Click on any timestamp to go back to the selected YouTube video moment - Instantly resume watching from that exact point ## Reviewing Flashcards 1. Click on the Flashcards tab to start reviewing 2. Read the question and try to recall the answer 3. Flip the card to see the answer 4. Choose an answer to indicate how well you remembered: - Hard - Didn't remember well (review sooner) - Good - Remembered okay (standard interval) - Easy - Remembered perfectly (review later) 5. This helps with the spaced repetition algorithm for optimal retention Flashcards are generated from both Active Tags and Daily Digests! ## Exporting Your Data You can export all your data to use in other software: 1. Go to your dashboard 2. Click the Export button 3. Choose your format: - PDF - For reading and printing - Markdown - For note-taking apps - JSON - For technical use - CSV - For spreadsheet analysis ## Settings & Customization Visit your Settings page to customize: - Context window - How much transcript to capture around your tag - Summary length - How detailed you want AI summaries (Short, Medium, Long) - Daily Digest - Delivery time, filtering mode, channel lists - Learning Bio - Personalize AI recommendations - Theme and notifications ## Keyboard Shortcuts - Alt + T (Windows/Linux) or Opt + T (Mac) - Tag current moment - Works while video is playing - no need to pause! ## Tips for Better Learning 1. Use both methods - Active Tag important moments, let Daily Digest catch the rest 2. Tag while watching - Don't wait until the end, capture moments in real-time 3. Review flashcards regularly - Spaced repetition works best with consistent practice 4. Customize your digest - Add a learning bio and curate your channel list 5. Use search often - Connect ideas across different videos 6. Chat with videos - Go deeper on digest videos using the AI chat feature 7. Export periodically - Back up your knowledge library --- # Frequently Asked Questions Everything you need to know about remembering YouTube videos, beating the forgetting curve, and building your YouTube knowledge library. ## Video Tagging & Knowledge Management ### What is video tagging and how does it work? Video tagging is the process of marking specific moments in videos with timestamps and notes. It allows you to capture important moments while watching, so you can quickly find and revisit key information later. With modern tools, you can tag any moment with a single click and automatically extract context from the video. ### How do AI-powered video summaries help with learning? AI-powered video summaries analyze the content at the moment you tag and automatically generate concise summaries of key concepts. This helps you understand and retain information better by distilling complex topics into digestible insights, saving hours of manual note-taking. ### What are flashcards and how do they improve knowledge retention? Flashcards are learning tools that use spaced repetition to help you memorize and retain information long-term. When automatically generated from video content, they extract key concepts and create question-answer pairs that you can review regularly, significantly improving knowledge retention compared to passive watching. ### How do video bookmarks differ from browser bookmarks? Bookmarks just mark a location. Our video bookmarks (tags) capture the knowledge from that moment, help you review it at optimal times, and build a searchable knowledge base across all your videos. ### What is a knowledge database for videos? A knowledge database for videos is a searchable collection of all your tagged moments, summaries, and insights from videos you've watched. It transforms passive video watching into an active learning system where you can search, review, and connect ideas across different videos and topics. ### What's spaced repetition and why does it matter? Spaced repetition is reviewing information at increasing intervals (24 hours, 3 days, 7 days, etc.). Research shows it can boost retention by 200-250%. TAGiT automates this for you. ## About TAGiT ### What is TAGiT? TAGiT is a Chrome extension that helps you capture and remember important moments from YouTube videos. It offers two capture methods: Active Tagging for one-click moment capture with AI summaries, and Daily Digest for automatic email summaries of videos watched on any device. Both methods generate flashcards for spaced-repetition learning. ### What is Daily Digest? Daily Digest is TAGiT's automatic capture feature. It monitors your YouTube watch history and sends you AI-powered email summaries of educational videos you've watched—even on TV, phone, or tablet. You receive personalized insights, key takeaways, action items, and flashcards at your scheduled time, without any manual tagging required. ### How does Daily Digest work with videos watched on TV or phone? As long as you're signed into the same YouTube/Google account on all devices, TAGiT can access your unified watch history. The extension (running on your computer) checks your history and processes videos watched anywhere. You watch on any device, and insights arrive in your inbox. ### What content does Daily Digest exclude? Daily Digest uses smart filtering to focus on educational content. It automatically excludes: - Music videos and audio tracks - Sports highlights and game recaps - Gaming content and streams - Entertainment and variety content - YouTube Shorts You can also manually block specific channels or use Curated Mode to only include selected channels. ### How does TAGiT work? **Active Tagging:** While watching YouTube, press Alt+T (Windows/Linux) or Opt+T (Mac) to capture any moment. TAGiT automatically extracts the transcript, generates an AI summary, and creates flashcards. **Daily Digest:** Enable it in settings, choose your delivery time, and TAGiT automatically processes your watch history overnight. You receive an email with summaries and insights each morning. ### Do I need to change how I watch videos? No. TAGiT works alongside your normal watching. For Active Tagging, click when something important happens. For Daily Digest, just watch normally on any device—TAGiT handles the rest automatically. ### Why do I forget 90% of YouTube videos? This is due to the forgetting curve, discovered by Hermann Ebbinghaus in 1885. Without active engagement, your brain naturally loses information over time: 50% within 1 hour, 70% within 24 hours, and 90% within 7 days. TAGiT combats this with active recall (tagging/digests), AI summaries (reducing cognitive load), and spaced repetition (flashcards for long-term memory). ### What makes TAGiT different from other video tools? TAGiT uniquely combines: instant tagging during playback, automatic Daily Digest for passive capture, AI summarization, and spaced-repetition flashcards. The cross-device Daily Digest feature—watch on TV, get insights via email—sets it apart from tools that only work on desktop. ### Can I use TAGiT offline? The extension requires an internet connection for YouTube transcripts and AI processing. However, your tags, digests, and summaries are stored in the cloud, so you can review them in the dashboard anytime. ### How much does TAGiT cost? TAGiT offers a free tier with 25 tags per month and 3 Daily Digests per month, including AI summaries and flashcards. Premium plans provide unlimited tagging, unlimited Daily Digests, and data export features. ### Which platforms does TAGiT support? TAGiT works with YouTube videos through a Chrome browser extension. Daily Digest captures videos watched on any device (TV, phone, tablet, computer) as long as you use the same YouTube account. The dashboard is a Progressive Web App (PWA) that works on any device with a modern browser. ### How do I enable Daily Digest? 1. Open the TAGiT extension side panel 2. Go to Settings > Daily Digest 3. Toggle "Enable Daily Digest" to ON 4. Choose your preferred delivery time 5. Optionally add a Learning Bio to personalize recommendations ### Can I customize which videos appear in my Daily Digest? Yes! You can: - Block channels - Exclude specific channels you don't want summarized - Curate channels - Switch to Curated Mode to only include selected channels - Category filtering - Automatic exclusion of music, sports, gaming, entertainment - Skip videos without transcripts - Option to exclude videos that can't be summarized ### What's included in a Daily Digest email? Each Daily Digest email includes: - Video summaries with key concepts - Key insights and main takeaways - Bonus insights (hidden gems) - Actionable takeaways - Book and video recommendations - Auto-generated flashcards - "Chat with this video" links for deeper exploration ### How do I tag a video moment? While watching a YouTube video, press Alt+T (Windows/Linux) or Opt+T (Mac) at any moment you want to capture. You can also click the TAGiT button in the extension. The tag is created instantly without pausing playback. ### Is my data private and secure? Yes. TAGiT uses industry-standard encryption and Row Level Security (RLS) policies. Your tags, digests, and learning data are completely private. YouTube watch history is only accessed with your permission and is never stored permanently—only processed for your daily digest. ### Can I export my tags and summaries? Yes. Premium users can export their entire knowledge database in multiple formats (PDF, Markdown) from the dashboard. This ensures you always own your data. ### How does the AI generate summaries? TAGiT uses OpenAI's GPT-4o mini model to analyze video transcripts. For Active Tags, it processes the transcript around your tagged timestamp. For Daily Digest, it analyzes full video transcripts and generates comprehensive summaries with insights, action items, and recommendations. ### Can I share my tags with others? Yes. You can generate shareable links for individual tags, which include the timestamp, summary, and flashcards. Daily Digest also includes shareable insight cards for each video. ### What happens if a video is deleted from YouTube? Your tags, summaries, and flashcards remain in your TAGiT dashboard even if the original video is deleted. You'll still have access to all the AI-generated content. ### How many tags and digests can I create? Free users get 25 tags per month and 3 Daily Digests per month. Premium users have unlimited tagging and unlimited Daily Digests. ### Does TAGiT work with videos without captions? TAGiT requires video transcripts to generate AI summaries. Most YouTube videos have automatic captions. For Daily Digest, you can enable "Skip videos without transcripts" to exclude these videos. For Active Tagging, you can still create tags with manual notes. ### Can I chat with videos from my Daily Digest? Yes! Each video in your Daily Digest includes a "Chat with this video" button that opens an AI conversation about that specific video. Ask follow-up questions, request clarification, or explore topics deeper. --- # Memory Science Behind TAGiT ## The Forgetting Curve (Ebbinghaus, 1885) Without active engagement, you lose 90% of what you learn within a week. Based on research showing active recall and spaced repetition can improve retention by 75-92%. ## How TAGiT Helps You Beat the Forgetting Curve ### Two Ways to Capture - Active Tagging - Click to capture moments while watching on your computer - Daily Digest - Automatic summaries of videos watched on any device (TV, phone, tablet) ### Active Recall Flashcards force you to retrieve information from memory—proven to be 2-3x more effective than passive review. ### Spaced Repetition Review your tags over time to move knowledge from short-term to long-term memory. The right interval makes all the difference. The forgetting curve was discovered by Hermann Ebbinghaus in 1885. Modern research continues to validate that active recall and spaced repetition are among the most effective learning techniques available (Dunlosky et al., 2013; Roediger & Karpicke, 2006). --- # Contact & Support - Website: https://tagit.video - Dashboard: https://app.tagit.video - Email: adam@tagit.video - Twitter/X: @adamvisu - Creator: Adam VisuAl+ (https://adampetritsis.com) --- *TAGiT - Click when it clicks. Or let Daily Digest catch it for you.* *Last updated: January 2026*