How to Summarize a YouTube Video (Free, With or Without AI Tools)

Updated November 2026 · By Harry Carson, founder of SnapSummary

Here are five ways to do it, from quickest to most hands-on. All of them start from the video's captions or transcript, so they work best on videos that have captions (most popular videos do).

Method 1: Use a YouTube summarizer (fastest)

1. Copy the YouTube link (from the address bar, or Share → Copy link on mobile).
2. Go to snap-summary.com and paste it in.
3. Pick a summary type, such as overall summary, key timestamps or detailed notes, and a language.
4. Click summarize. You'll get a structured summary in seconds. Click any timestamp to jump to that moment in the video.

With the Chrome extension you can do it straight from the YouTube page. You can also ask follow-up questions about the video in chat. Here's an example: a summary of Matt Walker's sleep episode.

Best for: doing this regularly without writing prompts or copying transcripts. Other dedicated tools include Glasp, Eightify and NoteGPT. See our comparison.

Method 2: Gemini (free, works with the link)

1. Open Gemini and paste the YouTube link.
2. Ask: "Summarize this video in 8 bullet points with timestamps."
3. Ask follow-up questions as needed.

Best for: occasional, free, one-off summaries. The format varies from one answer to the next, so for consistent results reuse the same prompt.

Method 3: ChatGPT or Claude (paste the transcript)

ChatGPT and Claude can't watch YouTube videos. If you paste just the link, you may get a vague summary or one based on the title alone. Paste the transcript instead.

Step 1: Get the transcript

1. On a computer, open the video on YouTube.
2. Click …more to expand the description, then click Show transcript.
3. The transcript opens beside the video. Select it all and copy it.

Step 2: Paste it with a prompt

Summarize this YouTube transcript.
1. Start with a 2-sentence overview.
2. Then list the 8 most important points as bullets, each with its timestamp.
3. End with any specific advice, numbers or recommendations mentioned.
Only use what's in the transcript. Don't add outside information.

[paste transcript here]

Best for: when you already pay for ChatGPT or Claude and don't mind the extra steps. Very long videos (2+ hours) may be too long to paste in one go.

Method 4: NotebookLM (for several videos at once)

1. Create a notebook in NotebookLM.
2. Add a source → YouTube, and paste the link (it needs a public video with captions).
3. Ask for a summary, or questions across all your sources. Answers cite the source.

Best for: research, such as comparing several talks or combining videos with documents.

Method 5: Do it yourself

Turn on playback speed (1.5–2×), open the transcript, and use the video's chapters if it has them. Skim the transcript for the sections you care about and click a line to jump there. It's free and you control what matters, but it's slow for long videos.

Tips for better summaries

• Check the important bits. AI summaries can get details wrong. Click the timestamp to verify quotes, numbers and claims.
• Pick the right format. Use key timestamps to decide what to watch, and detailed notes to replace watching.
• Watch out for videos without captions. Most tools need them. Music videos and some uploads may not have any.

FAQ

How do I get the transcript of a YouTube video?

On a computer, open the video, expand the description and click "Show transcript". It only appears if the video has captions.

Can ChatGPT or Claude summarize a YouTube link?

Not reliably. They can't watch the video, so paste the transcript instead (Method 3).

What's the fastest way to summarize a YouTube video?

Use a dedicated summarizer like SnapSummary: paste the link and get a summary with clickable timestamps in seconds.