OpenSummary for YouTube

OpenSummary for YouTube

AI-powered video summaries with clickable timestamps, right inside YouTube.

Install from Chrome Web Store

Features

Auto Subtitle Capture

Automatically intercepts YouTube subtitle data — no manual copy-paste needed.

AI Summary Engine

Sends subtitles to your configured AI API and returns structured, readable summaries.

Clickable Timestamps

Every summary point links to the exact moment in the video. Click to jump.

Streaming Rendering

Summaries appear in real-time as the AI responds, with a smooth typewriter effect.

Multi-Model Support

Works with OpenAI, Gemini, DeepSeek, and any OpenAI-compatible API endpoint.

Customizable Overlay

Adjust position, size, opacity, and font size. Make it yours.

How It Works

1

Install

Add the extension from the Chrome Web Store with one click.

2

Start Instantly

Open any video. A default "Slow Model" is pre-configured so you can see the magic immediately.

3

Optional: Custom AI

Want more speed? Add your own OpenAI, Gemini, or DeepSeek API key in the settings.

Your Privacy Matters

OpenSummary collects no personal data, uses no analytics, and stores everything locally on your device. Your API keys never leave your browser except to reach the AI provider you choose.

Read Privacy Policy