Summarizely CLI

Watch less. Learn more. Turn hours of YouTube into minutes of insights.

YouTube video summarizer. No API keys required - uses your existing Claude Pro or ChatGPT subscription.

Why?

• 10x faster - 2-hour video → 2-minute read
• Build your knowledge base - Searchable markdown summaries
• Zero friction - Uses your existing AI subscriptions

Installation

npm install -g summarizely-cli

Or from source:

git clone https://github.com/0xs34n/summarizely-cli.git
cd summarizely-cli
npm install && npm run build && npm link

Requirements

• Node.js 18+
• yt-dlp: brew install yt-dlp (macOS) or pip install yt-dlp (Linux/Windows)
• LLM Provider (one of):
  • Claude CLI - uses your existing Claude Pro subscription
  • Codex CLI - uses your existing ChatGPT subscription
  • Ollama - runs locally with models like llama3.2:1b

Usage

# Auto-detect provider
summarizely https://www.youtube.com/watch?v=VIDEO_ID

# Specify provider
summarizely https://www.youtube.com/watch?v=VIDEO_ID --provider claude-cli
summarizely https://www.youtube.com/watch?v=VIDEO_ID --provider codex-cli
summarizely https://www.youtube.com/watch?v=VIDEO_ID --provider ollama --model llama3.2:1b

Options

• -p, --provider <name> - Provider: claude-cli, codex-cli, or ollama
• -m, --model <name> - Model name (Ollama only)
• -o, --output-dir <dir> - Output directory (default: summaries)
• --no-save-transcript - Skip saving transcript
• --max-chars <n> - Max transcript length for CLI providers
• -h, --help - Show help
• -v, --version - Show version

Output

Summaries are saved to summaries/<timestamp>_<title>/ with:

• summary_full.md - The markdown summary
• transcript.txt - Plain text transcript
• metadata.json - Video metadata

The latest summary is also copied to summaries/_latest/.

License

Apache-2.0 - see LICENSE