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🛠️ Tech Stack

Layer Tools
Frontend / App Streamlit
Transcript Retrieval youtube-transcript-api
URL Parsing Python string handling
Environment Python 3

⚙️ How It Works (Details)

  1. URL Input — user pastes any standard YouTube video URL (youtube.com/watch?v=... or youtu.be/...).
  2. Video ID Extraction — the app parses the URL to isolate the unique video ID, handling both common YouTube URL formats.
  3. Transcript Fetching — calls the YouTube Transcript API to retrieve English captions for that video ID.
  4. Text Assembly & Display — individual caption entries are joined into one continuous block of text and displayed in a scrollable text area.

🚀 Getting Started

git clone https://github.com/Cashlin3/youtube-transcript-viewer.git
cd youtube-transcript-viewer
pip install streamlit youtube-transcript-api
streamlit run app.py

⚠️ Limitations

  • Only fetches English transcripts — videos without English captions (auto-generated or manual) will return an error
  • Videos with captions disabled entirely will show "Transcript not available"
  • Timestamps are stripped in the final output — only continuous text is shown

🔮 Future Improvements

  • Add multi-language transcript support with a language selector
  • Preserve and display timestamps alongside text for easier navigation
  • Add a download as .txt / .srt button
  • Add AI-powered summarization of the fetched transcript
  • Handle YouTube Shorts URLs and playlist links

👤 Contributors

Person Role Contributions
Cashlin (@Cashlin3) Developer URL parsing logic, transcript retrieval integration, and Streamlit app development