TAGiT - Remember Everything You Watch on YouTube

You forget 90% of what you watch within a week. TAGiT changes that.

TAGiT is an AI-powered Chrome extension and PWA dashboard that transforms YouTube videos into lasting knowledge. Using memory science (active recall, spaced repetition, AI summaries), TAGiT helps students, professionals, and lifelong learners retain what they watch - not just save it.

Install Chrome Extension | Try Dashboard | Read the Docs

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The Problem

You watch hours of educational YouTube content - tutorials, courses, talks, documentaries. You even take notes. But a week later? You've forgotten most of it.

Research shows we forget 70-90% of new information within 24 hours (Ebbinghaus Forgetting Curve). Traditional solutions fail:

• Pausing to take notes breaks your flow
• Saving videos creates a graveyard you never revisit
• Passive watching = minimal retention

TAGiT solves this with science-backed memory techniques, automated by AI.

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Core Features

Daily Digest

Receive personalized AI-powered insights from all videos you've watched - automatically. Every day, TAGiT analyzes your viewing history, generates concise summaries with actionable takeaways, and delivers them to your inbox. Zero effort required.

Free: 3 digests | Pro: Unlimited

One-Click Tagging

Capture key moments while watching with a single click (keyboard shortcut: Alt+T / Opt+T). TAGiT automatically extracts timestamped transcripts and generates AI summaries. No flow interruption, no manual note-taking.

AI-Powered Insights

Context-aware summaries powered by OpenAI's GPT-5 mini. Choose verbosity level (short/medium/long) to match your learning style. TAGiT understands video context and generates relevant, actionable insights.

Smart Flashcards with Spaced Repetition

Generate flashcards from any tag, then master them using science-backed spaced repetition. Cards progress through learning stages (New → Learning → Review → Mastered) with optimized intervals based on your recall performance.

Features:

• AI-generated flashcard categories (Technology, Science, Business, etc.)
• Custom study collections (organize by topic, course, or project)
• Flashcard due notifications (never miss a review)
• Easy/Good/Hard rating system for adaptive learning

Free: 25 flashcards/month | Pro: Unlimited

Chat with Video

Ask questions about any video content and get AI-powered answers grounded in the transcript. Perfect for clarifying complex concepts, finding specific moments, or deepening your understanding.

Cross-Device Sync

All your tags, flashcards, and digests sync instantly across devices via cloud. Start on desktop, review on mobile, study anywhere.

Export Everything

Export your knowledge base in PDF or Markdown format. Your data is yours - take it anywhere.

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How It Works

1. Install the Chrome extension (or use mobile via Web Share Target)
2. Watch YouTube like you normally do
3. Tag moments that matter with one click (Alt+T / Opt+T)
4. Get AI summaries automatically generated from video context
5. Review in dashboard - study flashcards, read digests, chat with videos
6. Remember forever with spaced repetition learning

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Pricing

Free Plan

• 25 AI tags per month
• 25 flashcard generations per month
• 3 daily digests (lifetime limit)
• 1 custom study collection
• Export to PDF/Markdown
• Cross-device sync

Pro Plan (€4.99/month or €49.99/year)

• Unlimited AI tags
• Unlimited flashcards
• Unlimited daily digests
• Unlimited study collections
• Early access to new features
• Priority support

No credit card required for free tier. Start free →

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Who Uses TAGiT?

• Lifelong Learners - Turn YouTube into your second brain
• Students - Retain lecture content, prepare for exams, build study guides
• Professionals - Remember conference talks, tutorial insights, skill development
• Researchers - Organize video references, extract key quotes, cite sources
• Content Creators - Research competitors, organize inspiration, build reference libraries

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Technology

Built with modern, reliable technology:

Frontend:

• React 18 + TypeScript + Tailwind CSS
• Chrome Extension (Manifest V3)
• Next.js 15 PWA Dashboard

Backend:

• Next.js 15 API routes
• Supabase (PostgreSQL, Auth, Real-time)
• OpenAI GPT-5 mini (AI summaries)
• Stripe (subscription management)
• ZeptoMail (email delivery)

Hosting:

• Netlify (PWA)
• Chrome Web Store (Extension)
• Supabase Cloud (Database)

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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
• Row Level Security ensures users can only access their own data
• Read our full Privacy Policy

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Learn More

• Website: https://tagit.video
• App: https://app.tagit.video
• FAQ: https://tagit.video/faq
• How-To Guide: https://tagit.video/how-to
• Use Cases: https://tagit.video/use-cases
• Pricing: https://app.tagit.video/pricing
• Blog: https://tagit.video/blog
• Changelog: https://tagit.video/changelog

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About the Creator

Built by Adam Petritsis, a filmmaker turned developer who got tired of forgetting everything he learned from YouTube. After watching hundreds of hours of tutorials and retaining almost nothing, he built TAGiT to solve his own problem.

The result: a tool grounded in memory science, powered by AI, and designed for anyone who watches to learn - not just entertain.

Read the full story →

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Community

• Twitter/X: Follow creator @adamvisu
• Email: adam@tagit.video
• Feedback: https://tagit.video/feedback
• GitHub Issues: For bug reports and feature requests

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Version History

• v0.10.3 – Current release with Daily Digest, Chat with Video, mobile UX improvements
• v0.10.0 – Daily Digest launch with automatic AI insights
• v0.9.5 – Smart spaced repetition, flashcard categories, study collections
• v0.9.0 – Major UI overhaul, progressive onboarding
• v0.8.4 – Chrome Web Store public release

See full changelog →

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Semantic Summary

TAGiT is a Chrome extension and PWA that helps users remember YouTube content using memory science.

It combines automatic Daily Digests, AI summarization, spaced repetition flashcards, and Chat with Video to help researchers, creators, and learners turn video content into lasting knowledge.

Use TAGiT to capture video insights automatically or with one click, generate instant summaries, study with smart flashcards, and build your personal knowledge base — all powered by OpenAI.

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License

Copyright © 2025 Adam VisuAl+. All rights reserved.

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Remember everything you watch. Start free at tagit.video