AI SUMMARIES FROM YOUTUBE CAPTIONS

YouTube Video Summarizer
Get the highlights.

Turn captioned YouTube videos into clear summaries, key takeaways and script drafts. Read the transcript when you need more context.

A creator wearing headphones speaking into a microphone

EXAMPLE VIDEOA fresh perspective on learning

12:48

✦ THE USEFUL PARTSIllustrative preview

Connect ideas.
Review what sticks.

Start with a question, connect new ideas to what you already know, and review the lesson in your own words.

00:28

Learning is about making connections between ideas.

SummaryKey pointsScript draft

Summaries, transcripts
and a starting point for your script.

Choose the output that fits your next task, using the video's existing captions as the source.

A video play tile, searchable transcript, and magnifying glass

01 / TRANSCRIPTS

Read and search transcripts

Read, search and copy available subtitles. Revisit a passage by timestamp or download the original captions as TXT, SRT or VTT. Free with Google sign-in.

Get a transcript

Long video notes organized into three concise takeaway cards

02 / AI SUMMARIES

Get summaries and key takeaways

Choose an AI summary for an overview or key points for review. Both use the selected subtitle track, so you can return to the source for context.

Summarize a video

A microphone, storyboard, and pencil for developing a spoken script

03 / SPOKEN SCRIPTS

Draft a spoken script

Generate a script draft in English or Simplified Chinese from the video's subtitles. Copy it to your editor to check facts, refine the language and add your own perspective.

Draft a script

A magnifying glass highlighting a passage in floating subtitle strips linked to a video timeline

▤ Your transcriptIllustrative preview

⌕ making connections 1 match

00:12

The best ideas often start with a simple question.

00:28

Learning is about making connections between ideas.

00:46

Review the lesson in your own words to check what you remember.

Download original subtitlesTXTSRTVTT

✓ Free with sign-in

Find a passage.
Return to its context.

Sign in with Google to read, search and copy available subtitles for free. Use transcript timestamps to revisit the video, or download the original subtitles without spending AI credits.

Choose from available subtitle languages
Download original subtitles as TXT, SRT, or VTT
Reading, copying and downloading subtitles use no AI credits

Explore transcripts

Choose your output.
Keep it for later.

Generate a summary for an overview, key points for review, or a spoken script draft to develop further. Check the result against the source, then copy it or return to it in your private library.

Generate in English or Simplified Chinese
Revisit and copy saved AI results from your private library
10 credits daily with Google sign-in; one per generation

Open your workspace

Summary, key-point and script tiles collected in a private archive

▧ Your private libraryIllustrative preview

✦

A new perspective on learningAI summary · English

↗

☷

The ideas worth keepingKey points · English

↗

✎

From insight to your next storySpoken script · English

↗

Saved results, ready to revisit and copy.

✦ From video to understanding

One link.
Three simple steps.

Paste a link, choose what you need, then generate and review your result.

Illustrative preview

Step 01
Paste a video link

Start with a public YouTube video that has accessible captions. Copy its URL and paste it into the input above.
Existing captions required
Step 02
Choose your output

Sign in with Google and select an available subtitle track. Choose a summary, key points or script draft, then set your output language.
Google sign-in required
Step 03
Review and keep the result

Generate your result, check it against the source and copy the text. Return to saved AI results in your private library whenever you need them.
1 AI credit per generation

Study, research
or prepare your next draft.

Highlighted subtitles and a magnifying glass for finding a passage in a video lesson

Review a lesson

Summarize a captioned lecture or tutorial, review its key points and search the transcript for details you want to revisit.

FOR STUDENTS & LIFELONG LEARNERS

A researcher comparing notes and sources at a bright desk

Organize interview takeaways

Keep an overview of an interview or talk, collect its main points and return to the transcript to verify quotes in context.

FOR RESEARCHERS & DEEP THINKERS

Summary, key-point and script tiles organized for later use

Prepare a script draft

Use a captioned video as a reference for a spoken script draft. Copy the result, then refine the wording, check facts and add your own perspective.

FOR CREATORS & STORYTELLERS

A few questions.
Clear answers.

Which YouTube videos can I summarize?

Use public YouTube videos with accessible existing subtitles, including auto-generated captions. Videos without captions cannot be summarized with this tool. Private, removed or restricted videos may be unavailable. The tool does not transcribe audio or accept uploads. AI generation supports videos up to 1 hour. Longer videos are not supported yet; subtitle reading and downloads remain available.

Do I need to sign in, and what is free?

Sign in with Google to use the workspace. Reading, searching, copying and downloading available subtitles are free and do not use AI credits. Generating a summary, key points or script uses one daily AI credit.

How do daily AI credits work?

Your daily allowance is 10 free AI credits, resetting at midnight in Asia/Shanghai. Each summary, key-points or script generation uses one credit. Unused credits do not carry over. If a generation task fails, its credit is returned.

Which subtitle and output languages can I use?

You can choose from the video's available subtitle tracks. AI results can be written in English or Simplified Chinese. Original subtitle downloads are not translated.

What can I download or save?

Download the original subtitles as TXT, SRT or VTT, or copy the transcript text. AI summaries, key points and script drafts can be copied and revisited in your account's private library. Subtitle downloads contain the original captions, not the generated AI result.

How accurate are the AI summaries?

Results are generated from the selected subtitle track. Captions can contain errors, and AI may miss context or make mistakes. Use the summary as a starting point and check important facts, names and quotes against the original video.

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Conceptual illustration of a video transcript, a short summary card, and a magnifying glass checking the source

YouTubeNov 11, 2026

Ready to summarize your next video?

Paste a captioned YouTube video link to get started with a summary or key takeaways.

Summarize a video Google sign-in required · 10 free AI credits daily · 1 credit per generation

YouTube Video Summarizer
Get the highlights.

Connect ideas.
Review what sticks.