Video

Turn any YouTube video into a designed slide deck

Paste a YouTube link and BananaSlides pulls the transcript, builds an outline, and renders a full visual deck — one image per slide, end-to-end, no template guesswork.

Free credits to try · No credit card required

What it does

Watch fewer videos. Ship more decks.

Every great video has a great outline hiding inside it — a tutorial has steps, a keynote has arguments, a course lecture has a structure. BananaSlides reads the full transcript, identifies the through-line, and turns it into a presentation you can actually open in front of an audience the same day.

We pull captions directly from YouTube, so the source is exactly what the speaker said. We pass that transcript through Gemini 2.0 Flash to produce a tight slide-by-slide outline, then generate each slide as a real designed image — typography, color, illustration, all coherent across the deck. No bullet-list templates dressed up to look intelligent.

Most teams use this to convert a long-form recorded talk into a shareable summary deck, a YouTube tutorial into onboarding material, or a competitor keynote into a stakeholder brief. The whole loop — link to deck — runs in about two minutes for a ten-slide presentation.

How it works

Three steps from source to deck

Paste a YouTube URL

Any public video with captions works — talks, lectures, tutorials, podcasts, product launches. We pull the transcript on the server; nothing is downloaded to your browser.

https://youtube.com/watch?v=xxxxxxxx

Paste a link…

🍌 BananaSlides reads the page and ships a deck in ~2 minutes.

We extract the outline

Gemini reads the transcript and proposes a slide-by-slide structure — titles, key points, supporting examples — weighted by what the speaker spent the most time on.

AI Outline

Draft

1Title slide
2Why this matters
3Key point #1
4Key point #2
5Supporting data
6Counter-arguments
7What to do next

Render the deck

Each slide is generated as a designed image in your chosen theme, style, and aspect ratio. Download individual slides or the whole deck as a ZIP.

Designed deck

Features

What you get

Real transcripts, not summaries

We use the actual caption track from YouTube, not a third-party paraphrase. Quotes survive intact and numbers stay accurate.

Auto-language fallback

If English captions aren't available, we fall back to whatever language the video provides and translate inside the outline step.

Choose your aesthetic

Ten themes, seven styles, three aspect ratios. Pick once and every slide in the deck stays visually consistent.

Two AI model options

Switch between Gemini Nano Banana for speed or Gemini 3 Pro for higher-detail outputs. Same input, different look.

Download as ZIP

Get every slide as a high-resolution PNG, or download them all at once bundled in a ZIP for easy import.

Saved to your account

Every deck you generate is saved to your dashboard so you can come back later, share a link, or rebuild with tweaks.

Who uses it

Real use cases

Conference recaps

Turn a recorded keynote into a shareable internal brief so the team that couldn't attend gets the gist without 60 minutes of watching.

Course modules

Convert tutorial videos into module slides for an onboarding doc or LMS — perfect for technical training where the original creator's words matter.

Competitive intel

Drop a competitor's product launch video in and get a structured brief on what they shipped and how they positioned it.

Sermon and lecture summaries

Long-form spoken content compresses beautifully — turn a forty-minute talk into a ten-slide handout for follow-up reading.

Manual vs BananaSlides

Why bother automating?

Doing this by hand means watching the whole video, taking notes, then opening a slide deck. Here's how that stacks up:

Aspect	Manual	BananaSlides
Time to first draft	60–120 minutes per hour of video	2 minutes for a 10-slide deck
Transcript accuracy	Whatever you typed while listening	Full caption track, verbatim
Slide design	Pick a template, hope it looks fine	Generated end-to-end per slide
Consistency across the deck	Drifts as you get tired	Same theme + style on every slide
Iterating on the outline	Reorder slides by hand	Regenerate with a tweaked prompt

The reasoning

Why we pull transcripts instead of summaries

There are dozens of services that will give you a YouTube summary in three paragraphs. That's not what makes a good deck. A summary collapses everything into one voice; a deck needs structure — sections, transitions, a narrative arc — and you can only build that from the original.

Captions preserve the speaker's structure. When you watch a talk you implicitly track when they're setting up, when they're delivering the main point, and when they're closing. The transcript carries those cues, and our outline step uses them to decide where the slide breaks go.

It also means quotes survive. If the speaker says something memorable, you can drop it on a slide verbatim — not as a paraphrase that loses the punch.

Pro tips

Get better decks from YouTube

Two minutes of input attention pays off in a deck you can actually present.

Pick videos with real captions

Auto-generated captions work but contain transcription errors. Videos where the creator uploaded a clean caption file produce noticeably better outlines.

Set the slide count to match the video

For a 10-minute video, try 8–12 slides. For an hour-long keynote, go 15–25. Too few and you lose the structure; too many and slides repeat.

Reference an image if the video is about a product

Drop a product screenshot or logo as a reference image so generated slides keep visual continuity with the real thing.

Use a strong theme for talk recaps

Talk recaps look best in higher-contrast themes — the title slide and section breaks need to read at a glance.

FAQ

Common questions

What videos work?

Any public YouTube video that has captions, including auto-generated ones. Private, age-restricted, or members-only videos can't be read by our transcript fetcher. Live streams work once they finish and captions are processed.

How long can the video be?

We support transcripts up to roughly 200,000 characters, which covers most videos under three hours. Longer videos are clipped at the end — if you're working with a multi-hour conference recording, split it into segments first.

Does it work with languages other than English?

Yes. We try English captions first; if none exist, we fall back to whatever language the video provides. The outline step works across languages, and you can ask for the final deck in any language by adding it to the design prompt.

What if the video has no captions at all?

You'll get a friendly error explaining no transcript was available. Some videos genuinely have no caption track. If that happens, copy the video's description or title into the Prompt tool as a fallback.

Can you download the video itself?

No. We only read the public caption metadata. We don't store or proxy the video file.

What does it cost?

Generation cost is per slide, not per video — the transcript step is free. So a 10-slide deck costs 10 credits regardless of how long the source video is.

Do I need an account?

Yes. Generating slides consumes credits, and credits are tied to your BananaSlides account. New accounts get a small free pack so you can try the tool end-to-end without paying. You can sign up with email or Google in under thirty seconds, and the source you've already entered (URL, file, or prompt) is preserved across the redirect.

Can I edit the slides after generation?

Each generated slide is delivered as a high-resolution image. You can download individual slides, or download the whole deck as a ZIP and drop the images into PowerPoint, Keynote, Google Slides, or Notion as a starting point. For text edits, regenerate the slide with a tweaked outline — the deck is fast enough that iterating beats hand-fixing pixels.

What is the BananaSlides format?

BananaSlides decks are designed to be visual, not bullet-heavy. Each slide is rendered end-to-end by an image model so you get a real layout — typography, illustration, color — instead of a generic template with your text dropped in. You choose the theme, style, and aspect ratio up front, and the AI keeps every slide visually consistent across the deck.

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