Learn from YouTube, in your language

Watch YouTube with dual subtitles.

Keep the original captions. Read the translation. Understand unfamiliar words as you watch talks, tutorials, and lectures — without leaving YouTube.

Free to install. Captions required. Translation uses plan credits.

  • Two subtitle lines, one video Choose your translation language and show the original, the translation, or both.
  • Understand unfamiliar terms Hover over a word for its contextual translation and common meanings in your native language.
  • Read and listen at your own pace Enable pause on hover, or click a word to hear its pronunciation with your browser’s available voices.
Also included: AI summaries, transcripts, chat, and channel briefs →
Dual subtitlesIllustrative example

Keep your interfaces small and explicit.

Mantén tus interfaces pequeñas y explícitas.

04:32 / 28:10 · Caption example
Word meaning · English → Spanishinterfaces → interfaces

Other meanings: conexiones, puntos de interacción

Available captions required. Subtitle and word translations use your plan’s credits.

A brief, not another notification

See what arrives when a new video drops

VideoBrief turns a new upload into something you can scan and act on: a concise summary, key takeaways, and a direct link to the source.

01New video detected
02Transcript analyzed
03Brief delivered
Watch less. Keep up.

Ten trusted channels should not demand ten hours a week

Conference talks, release streams, tutorials, and tool reviews are useful only when the signal is worth the time it takes to find it.

THE OLD LOOP
  1. Check channels
  2. Open every video
  3. Scrub the timeline
  4. Decide if it matters
WITH VIDEOBRIEF
  1. Follow once
  2. Receive the brief
  3. Scan the signal
  4. Watch only when it is worth it
How it works

Start with a video. Learn at your own pace.

Watch with translation, explore the ideas, and follow what matters.

01

Add VideoBrief to Chrome

Use VideoBrief directly on the YouTube page. No URLs to copy into another tool.

02

Turn on dual subtitles

Open a captioned video, select Double subtitles, and choose your translation and native languages.

03

Understand words and ideas

Hover for word meanings, click for pronunciation, or explore a summary and ask the transcript-based AI chat.

04

Keep useful knowledge coming

Copy or export your results. Sign in to follow channels and topics and receive new video briefs.

More than a summarizer

A summarizer waits for you. VideoBrief keeps watch for you.

One tool shortens a video you already found. The other helps you discover what deserves attention next.

Generic summarizerVideoBrief
Starts whenYou paste a URLA followed source publishes
Finds new videos—Channels and topics
Delivers resultsWhile you use the toolBrief Feed and email
Helps you decideAfter discoveryBefore you open the video
When a video deserves a closer look

Go from quick brief to source-level detail

Every result stays connected to what was actually said in the video.

⌕

Timestamped transcript

Search every spoken word and jump to the exact moment in the source.

≡

Summary and takeaways

Understand the argument and useful conclusions without replaying the video.

✓

Action items

Turn recommendations into concrete next steps you can review or share.

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Ask the video

Ask specific questions and get answers grounded in the transcript.

文

Dual subtitles and translation

Read original captions alongside a translation. Hover over a word for its meaning and click to hear it pronounced.

≡

Chapters and your output language

Navigate the main sections of a video and choose the language for AI summaries and chat independently of its captions.

↓

Copy and export

Copy the transcript or generated results, or download a Markdown file for your notes and team documentation.

↗

Share the brief

Send a public link that teammates can read without installing the extension.

Built for knowledge work

Follow the sources your decisions depend on

01

Developers

Follow framework releases, conference talks, and engineering channels.

See what changed before committing an hour to a video.
02

Founders and operators

Monitor competitor demos, market interviews, and operator channels.

Turn uploads into decisions and follow-up questions.
03

Researchers and analysts

Track expert sources, compare claims, and search full transcripts.

Keep every conclusion connected to its source.
Privacy and control

Your videos stay on YouTube

VideoBrief uses the text transcript to create your brief. It does not download video or audio files, and the extension does not request access to your browsing history.

Read the Privacy Policy →
✓

No browsing history permissionThe extension runs on YouTube pages only.

✓

No video or audio downloadsProcessing is based on available caption text.

✓

Optional sign-in to startTry a one-off summary before creating an account.

✓

One-click channel unsubscribeStop a channel’s email briefs from the email itself.

Questions about VideoBrief

No account is required to summarize an eligible YouTube video. A free account is required to save channel and topic follows, use Brief Feed, and receive email briefs.

VideoBrief works where you already watch. You can summarize the open video, search its transcript, and follow its channel without copying URLs into another tab.

Follow a YouTube channel from the VideoBrief panel. When that channel publishes a new video, VideoBrief processes the available transcript and sends a ready-made brief by email. You can unsubscribe from a channel using the link in the email.

VideoBrief requires captions provided by YouTube, either generated automatically or added by the creator. If captions are unavailable, transcript-based processing cannot run.

VideoBrief is free to install and includes free usage. Usage limits vary by account status and plan. You can try a one-off summary without signing up.

Anything grounded in the video content. For example: "What is the speaker's main argument?", "Give me 3 action items from this", "Write a Slack update based on this video", "Explain this for a non-technical manager", "What tools were mentioned?". The AI answers based only on what was actually said in the video — it does not guess or add outside information.

A general AI chat requires you to find and provide the source material. VideoBrief works inside YouTube, retrieves timestamped captions, keeps answers connected to the video, monitors followed sources, and prepares briefs when new videos appear.

A YouTube subscription tells you that a video exists. A VideoBrief follow gives you the summary and takeaways so you can decide whether the video deserves your attention.

No. The extension does not request Chrome’s browsing history permission. It runs on YouTube pages and communicates with the VideoBrief API to provide its features.

Yes. The transcript tab lets you search for any word, topic, tool, or name mentioned in the video. Each result links to the exact timestamped segment so you can jump to the right moment immediately.

AI summaries and chat support English, Russian, Spanish, German, and French. Dual subtitles have a separate translation language selector with a broader language list. Original captions depend on what YouTube provides for the video.

Open Double subtitles in the VideoBrief panel and choose your translation language. Original captions and their translation appear together on the YouTube player, synchronized with the video. You can show both lines or only one, and enable pause on hover to read at your own pace. Captions must be available, and translation uses your plan’s credits.

Yes. Hover over a word in either subtitle line to see its contextual translation and other common meanings in your selected native language. Click a word to hear its pronunciation using your browser’s available voices. Word translation also uses credits; pronunciation availability depends on your browser and language.

You can copy transcripts and generated results, and export the video output as Markdown for your notes or documentation. Public summary links let others read a brief without installing the extension. Sharing availability depends on your account and plan.

VideoBrief processes the text transcript to generate AI output and does not download video or audio files. The Privacy Policy explains what data is stored, why it is processed, and which service providers are involved.

VideoBrief is currently available as a Google Chrome extension built for Manifest V3.

Keep the original.
Understand it in your language.

Watch with dual subtitles, explore unfamiliar words, and hear their pronunciation. When you need the overview, get an AI summary or ask a question about the video.

Free to install. Usage limits apply. Captions required.