YTSK - Chrome Web store – AI-powered YouTube video summarizer using your own API key

Summary: YTSK is a browser extension that summarizes YouTube videos via your Google Gemini API key, enabling cost control without subscriptions. It supports multiple Gemini models, custom prompts, and 15+ languages while securing your API key locally.

What it does

YTSK extracts official and auto-generated transcripts from most YouTube videos and generates summaries using selected Gemini models and custom prompts.

Who it's for

It is designed for YouTube users who want quick video summaries without subscription fees and with control over API usage.

Why it matters

It eliminates the need to watch entire videos by providing concise summaries while protecting user privacy and managing costs.