VideoBrief: Dual Subtitles & AI Summaries for YouTube

Watch YouTube with dual subtitles. Translate words, hear pronunciation, and get AI summaries, transcripts, and channel briefs.

VideoBrief: Dual Subtitles & AI Summaries for YouTube VideoBrief adds dual subtitles and AI summaries to YouTube videos with captions. DUAL SUBTITLES AND WORD TRANSLATION Watch with original captions and a synchronized translation. Choose the subtitle translation language and your native language for word meanings separately. Display both lines, only the original, or only the translation. Hover over a word in either line to see its contextual translation and other common meanings. Click it to hear its pronunciation using your browser's available voices. Enable pause on hover when you need more time to read. SEARCHABLE TRANSCRIPT Read the full transcript and search for a passage you need. Select a timestamp to jump to the corresponding moment in the video and check the original context. AI SUMMARY AND STRUCTURED RESULTS Get an overview before deciding whether to watch the whole video. Review the key takeaways, use chapters to navigate its structure, and explore action items for practical next steps. The results are generated from the transcript. TRANSCRIPT-BASED AI CHAT Ask questions about what was said in the video. Request an explanation of a passage or clarification of a conclusion without rereading the full text. Answers are based on the transcript. TOPIC FEED AND CHANNELS Follow topics to receive AI digests of relevant new videos. Subscribe to selected channels to receive summary notifications when new videos are published. EXPORT AND SHARING Copy the text you need or export the transcript and generated results as Markdown. Share processed results through a public link so others can review the video brief. HOW TO USE Open a YouTube video with captions and click the VideoBrief button. Select Double subtitles to configure translation, or open the transcript and generate a summary. AVAILABILITY AND LIMITS Video captions are required. VideoBrief is free to install and includes limited free usage. You can try a captioned video without creating an account. Subtitle and word translations consume credits. Usage limits and feature availability, including public sharing, depend on your account and plan. Following channels and topics, using Brief Feed, and receiving email briefs require sign-in. Pronunciation availability depends on your browser and language. PRIVACY See the VideoBrief Privacy Policy for details about data collection, processing, and storage. This extension is not affiliated with, sponsored by, or endorsed by Google LLC. YouTube is a trademark of Google LLC.