AI-powered YouTube Metadata Generator built with Replit Agentic Builder, GPT-4, and YouTube Data API v3

TubeCatalog is an intelligent video cataloging app that automates the creation of YouTube titles, descriptions, and SEO-optimized keywords using OpenAI's GPT-4 and real-time video metadata from the YouTube Data API.

Paste a YouTube URL and the app generates:

• ✅ An SEO-optimized title
• ✅ A detailed, AI-generated description
• ✅ Exactly 40 comma-separated keywords (no hashtags)

• 🔗 Input any YouTube video URL
• 🧠 Extract metadata and auto-generated transcript (if available)
• ✍️ Generate structured, optimized metadata using GPT-4
• 🖼️ Display video preview, thumbnail, and original info
• 📋 One-click copy functionality for all generated content
• 🌐 Built using Replit's Agentic Builder, Tailwind CSS, and Radix UI

• Frontend: Radix UI + Tailwind CSS
• Backend: Node.js / TypeScript
• APIs:
  • YouTube Data API v3
  • youtube-transcript
  • OpenAI GPT-4
• Platform: Replit

git clone https://github.com/lucab85/TubeCatalog.git
cd TubeCatalog

npm install

YOUTUBE_API_KEY=your_youtube_api_key
OPENAI_API_KEY=your_openai_api_key

npm run dev

For https://youtu.be/UnWQEJDmego

• Title: Unlocking AI OCR: Revolutionizing Text Recognition Technology
• Description: (Full paragraph with use cases and insights from transcript)
• Keywords (40): AI OCR, Optical Character Recognition, text recognition, ...

MIT License © 2025 Luca Berton https://lucaberton.com

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

• 🎬 Demo Video on YouTube – See TubeCatalog in action
• 🌐 Live App Demo
• 📺 YouTube Channel
• 🤖 OpenAI API
• 📘 YouTube API Docs