Summarize any YouTube video on your device — TL;DR, key points, chapters. No account, no API keys, nothing leaves your browser.
+ Add to Chrome — FreeOne click turns a long video into a short summary: the gist in a couple of sentences, the key points as bullets, and a chapter outline you can scan.
It uses the AI model built into Chrome itself. The transcript never leaves your browser — no cloud calls, no API keys to paste in, no usage caps from a third-party service.
Install it and use it. There is nothing to register for and nothing that phones home.
Summaries are built from the video's caption track — the same transcript YouTube shows you. Videos without captions can't be summarised, and the extension says so rather than guessing.
No. It uses the AI model that ships inside Chrome (Gemini Nano), which runs on your own machine. That is the whole point — no keys, no metering, no cloud.
Any video with a caption track, which is most of YouTube. Very long videos are summarised from as much of the transcript as the on-device model can hold.
On-device models are smaller than cloud ones, so summaries are solid rather than spectacular. The trade is privacy and zero cost — nothing leaves your browser, ever.
Yes. A summary tells you what a video says; VideoCore Script Lab tells you which words earned the views — pacing, exit points, hooks, measured against real performance data. Free to try.
Real analytics, script decoding, idea mining and revenue attribution for your channel — built on measured data, never generic guesses. The core tools are free to try.
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