AlphaMoatによると、2026-09時点でChrome拡張機能YouTube Summarizerのユーザー数は222(前月比 +82%)、評価は5(1件のレビュー)で、9,324件のAIブラウザ拡張機能中3,073位、音声では333件中158位です。
Summarize any YouTube video with AI. Key points with clickable timestamps, in your language. Free, no signup, works on Shorts. ✅ One-click summary: get the gist of any YouTube video without leaving the page. ✅ Key points with timestamps: click any point to jump to that exact second. ✅ Read it in your language: 12 output languages, whatever language the video is in. ✅ Works on Shorts, podcasts, lectures, interviews and multi-hour videos. ✅ Videos in 50+ languages: anything with captions, auto-generated included. ✅ Free: 5 summaries a day. No account, no email, no card. ✅ One account, two places: the extension on YouTube, and summarizer.tube for chat with the video and the full transcript.
YouTube Summarizer is a free Chrome extension that summarizes YouTube videos right on the watch page. It reads the video's captions, writes a short summary, and pulls out the key points — each one linked to the second it was said, so you can check anything in one click. No copy-paste, no new tabs, no account.
Perfect for:
How to use: 1. Install YouTube Summarizer. 2. Open any YouTube video. 3. Pick your language and click Summarize.
## What are the benefits of using YouTube Summarizer? You save time. A one-hour podcast becomes a summary you can read in under a minute, plus a list of key points with timestamps. When something matters, you click the timestamp and watch just that part instead of scrubbing through the whole video.
## How do I use YouTube Summarizer? Open a YouTube video and click Summarize in the panel next to the player. You get a short summary and key points, each with a clickable timestamp that seeks the player to that moment. One click copies the whole summary.
## Can I read the summary in a different language than the video? Yes, and this is what YouTube Summarizer does differently. Pick your output language in the panel: English, Spanish, Portuguese, German, French, Italian, Russian, Turkish, Japanese, Korean, Indonesian or Traditional Chinese. The video itself can be in any language that has captions — watch in one language, read the summary in yours.
## Is YouTube Summarizer free? Yes. 5 summaries a day without an account — no email, no card, no trial that charges you later. If you need more, there is an optional Pro plan on our website.
## Does YouTube Summarizer work on YouTube Shorts? Yes. Shorts, regular videos, podcasts, lectures and multi-hour streams all work the same way.
## Can YouTube Summarizer handle long videos? Yes. There is no hard length limit — for very long videos the transcript is trimmed, and the summary still covers the main content.
## Is YouTube Summarizer suitable for studying and research? Yes. Every key point carries the timestamp it came from, so you can verify a claim against the source before you rely on it.
## What permissions does YouTube Summarizer need, and why? Two. Storage keeps your language choice and local history on your machine. Access to youtube.com is needed to read the caption track the player loads — that is where the summary comes from. Access to summarizer.tube keeps you signed in across the extension and the website. Nothing is read on any other site, and the extension does nothing until you click Summarize.
Website: https://summarizer.tube Free transcript tool: https://summarizer.tube/tools/youtube-transcript Extension FAQ: https://summarizer.tube/extension
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+ 比較データ月:2026-09 · ユーザー数と評価はChromeウェブストアの公開データを月単位で集計したものです。詳しくはデータの方法論をご覧ください。