Summarize a YouTube Video — No Chrome Extension Required.

It depends on the specific add-on, and that's exactly the risk. Google has repeatedly tightened its extension rules and removed permission-heavy add-ons, and summarizer extensions typically ask to 'read and change data on the sites you visit' — a broad permission that puts your browsing in scope. We won't claim any particular extension breaks a rule, but an extension-free path sidesteps the whole question: @vustSummaryBot runs in Telegram, so there's no browser add-on, no site-access permission, and nothing that can be pulled from a store to take your workflow down with it.

Open @vustSummaryBot in Telegram and paste the video URL. There's no extension to add to Chrome, no app to sideload, and no browser permission prompt. The bot returns a structured first recap. When it includes a Key moments block, its M:SS timestamps are clickable. Past about twenty minutes it asks whether you want Full or TL;DR; Full is the choice that retains Key moments. The whole thing happens in a chat you already have.

None. Because the work happens inside Telegram and not as a browser add-on, nothing asks to read the sites you visit, access your tabs, or see your history. A Chrome extension has to request those permissions to function; a Telegram bot you paste a link into does not.

No. The first recap comes back structured. When it includes a 'Key moments' block, its M:SS timestamps (like 8:15 or 19:30) are clickable, so you can jump back instead of scrubbing. Past about twenty minutes the bot asks first: Full retains Key moments, while TL;DR is a few sentences without them. A music video normally comes back without Key moments. Switching format after a recap replaces it with a reformatted result, so a Key moments block is not rebuilt.

Yes — long-form lectures, conference talks, and interviews are the sweet spot. Past about twenty minutes the bot asks which recap you want before it starts. Choose Full to retain any Key moments from the first recap; TL;DR gives you a few sentences without them. Treat a recap as a guide to the returned material, not as a claim that every minute or visual detail was covered.

Captions, including YouTube's auto-generated ones, are the basis for caption-aligned Key moments when the first recap includes them. If captions are unavailable, the bot may still process the video itself, depending on the link; do not rely on any returned timestamps as caption-aligned timecodes. Live streams while they are airing and private videos are out either way, and the input is a link, not a video file.