AlphaMoatによると、2026-09時点でChrome拡張機能VideoBriefのユーザー数は17(前月比 +41.7%)、評価は5(4件のレビュー)で、9,324件のAIブラウザ拡張機能中7,798位、動画では174件中148位です。
Summarize any YouTube video in seconds. Follow channels and get an AI brief of every new video, without watching it. VideoBrief: YouTube Summary, Transcript & Channel Digest
You follow engineering channels, conference talks, release streams, and technical tutorials. New videos keep arriving, but you rarely have time to watch them all.
VideoBrief helps at both ends. Open any captioned YouTube video and get a timestamped transcript, AI summary, key takeaways, chapters, and action items in seconds — no sign-up, separate tab, or copy-pasting into ChatGPT. Then follow the channels that matter and let the summaries come to you: every new video arrives as a brief telling you what changed and whether it is worth your time.
Built for people who use YouTube for work: software engineers, technical leads, founders, product teams, consultants, and researchers who need the signal without watching every minute.
What you can do with VideoBrief:
SEARCHABLE YOUTUBE TRANSCRIPT
Convert spoken video content into readable, timestamped text. Search the full transcript to find where a speaker mentions a specific topic, product, person, recommendation, or technical detail.
Select a timestamp to return to the original context without scrubbing through the entire video.
YOUTUBE AI SUMMARY
Understand the main ideas before deciding whether a video deserves your time. VideoBrief generates an AI summary from the transcript, helping you review tutorials, interviews, podcasts, lectures, webinars, and conference talks faster.
STRUCTURED VIDEO INSIGHTS
Go beyond a basic summary with:
AI CHAT GROUNDED IN THE TRANSCRIPT
Ask questions about the video and receive answers based on what was actually said. Request a simplified explanation, comparison, checklist, meeting notes, technical brief, or step-by-step guide.
PERSONALIZED TOPIC FEED
VideoBrief learns from the videos you process and can suggest professional topics to follow. Receive AI digests of relevant new videos without manually searching YouTube or monitoring dozens of channels.
CHANNEL SUMMARY NOTIFICATIONS
Subscribe to selected YouTube channels from the extension. When a new video is published, VideoBrief can process it and deliver a summary notification.
YOUTUBE VIDEO TO TEXT
Use VideoBrief as a YouTube video-to-text tool when you need readable source material instead of another playback. The timestamped transcript preserves the order of the discussion and makes spoken content easier to scan, quote, copy, and organize.
A video transcript with timestamps is useful for documentation, research, content review, and meeting preparation. Copy the text you need or export the transcript and generated results as Markdown for Notion, Obsidian, GitHub, and other knowledge tools.
HOW TO SUMMARIZE A YOUTUBE VIDEO
Open a captioned video and let the AI video summarizer analyze its transcript. Start with the short summary, review the key takeaways, then use chapters and action items to understand the structure and practical conclusions.
This workflow helps you summarize a YouTube video, podcast, interview, lecture, tutorial, webinar, product demo, or conference talk without relying on the title and description alone.
VIDEO NOTES FOR WORK, RESEARCH, AND STUDY
Turn video content into notes that match your purpose:
Instead of rewatching a long recording, search the YouTube transcript for the exact detail and verify it at the linked timestamp.
MORE THAN A YOUTUBE SUMMARY EXTENSION
Many video summarizer tools return one paragraph and hide the source. VideoBrief keeps the full transcript available alongside the YouTube AI summary, structured outputs, and transcript-based chat. You can move from overview to evidence without leaving the video page.
Use the public sharing option to send a video brief to teammates. Recipients can review the available summary, takeaways, chapters, and action items through one link. Use Markdown export when the result belongs in documentation or a personal knowledge base.
WHO VIDEOBRIEF IS FOR
VideoBrief is designed for software engineers, product managers, founders, marketers, consultants, researchers, students, and professionals who use YouTube as a source of knowledge.
Use it to:
HOW IT WORKS
1. Open a YouTube video with captions. 2. Click the VideoBrief button. 3. Get the transcript, AI summary, key takeaways, chapters, and action items. 4. Search the transcript, open timestamps, or ask follow-up questions in AI chat. 5. Copy, export, or share the results.
FREE TO GET STARTED
VideoBrief is free to install and use. You can start without creating an account. Usage limits apply, and signing in provides higher limits and access to additional features.
PRIVACY
VideoBrief processes video transcripts and generated content only to provide the features you request. Data handling is described in the VideoBrief Privacy Policy.
VideoBrief is not affiliated with, sponsored by, or endorsed by Google LLC. YouTube is a trademark of Google LLC.
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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。