Hook9:16
Long video → Shorts
One long video.
Clips that stand on their own.
Katto finds moments in your video, prepares them in vertical, and adds captions. You watch, adjust, then export.
Before you start, see what the result can look like.
YouTube link or video fileShorts · Reels · TikTokEdit before export
Paste a YouTube link to get started. You keep the last word on every clip before exporting.
Katto · your videoworkflow preview
SOURCE · 16:9Scanning for momentsPROPOSED CLIPS
To watch before export
Key idea9:16
Closing9:16
Source analyzed→Moments isolated→Vertical format→Ready for your review
This is an illustrative mockup built with a stock image. It shows the visual journey, not a measured Katto run.
Publish where your audience already is
YouTubeTikTokInstagramLinkedInThreadsBlueskyMastodon
From link to clip
The AI prepares.
You keep the last word.
An interesting moment in the source is not always a good clip. Check the start, the framing and the ending before you publish.
Start from your video.
Add a YouTube link or a file. Katto analyzes the source to propose moments worth extracting.
Choose the clips that matter.
Check that each moment stands on its own. Adjust the cuts, the framing and the captions in the editor.
Keep the clips you like.
Export the clips you kept for Shorts, Reels or TikTok. You don't have to keep every proposal.
Choosing the moments
Understand why
a clip surfaces.
Katto shows each moment with its transcript and four criteria: Hook, Flow, Value and Trend. You can compare the proposals before opening the editor.
- ✓The proposed moment
- ✓The matching transcript
- ✓The breakdown of the four criteria
RESULTS · SCORE EXPLAINED
16:9 · source9:16Adapting the frame
One source.
Several formats.
Compare the horizontal source to its vertical and square outputs. Every format stays visible before you decide to use it.
16:9 source9:16 vertical1:1 square
Three more playgrounds
Cooking, fitness, travel.
Not the same clip three times.
A video can start on a countertop, a mat, or in the middle of a forest. Each card shows a new source and its vertical reframe.
COOKING TUTORIALThe gesture stays centered.
source → short
FITNESSFrom class to mobile format.
source → short
TRAVELThe subject follows the motion.
source → shortIllustrative images from Pexels.
Clip examples
Three worlds.
Three vertical frames.
Each example uses a different scene. These reframes show the visual direction of the page.
9:16 · BEAUTYFace-to-camera tutorialFace and gesture in frame
BEAUTY
9:16 · MUSICLive performancePerformer and mic visible
LIVE
9:16 · SPORTFull-frame actionThe player stays centered
SPORTFraming mockups made with Pexels images. They illustrate the layout and are not measured Katto exports.
Try it with my video ↗Show, don't promise
A result to examine.
Not a promise of virality.
The point of this page: show a full source, the clips you get, and the adjustments actually needed.
- ✓The moment makes sense without the original video.
- ✓The subject stays visible in the vertical frame.
- ✓The captions are readable and correct.
- ✓The end of the clip doesn't cut off an idea.
- One measured run: ~5 minutes of worker time produced 8 finished clips from a 20-minute video. Queue and download time vary, so this is not an end-to-end guarantee.
What changes for your clips
Try the result.
Then choose for your use.
The useful difference here: export quality, watermark and reframe. The full pricing detail stays on the pricing page.
Free
TO TRY ITCheck whether the proposed moments and the editor fit your need before subscribing.
- —720p export with watermark
- —Center crop
- —2 videos a month
Free covers 2 videos a month, up to 90 minutes each.
Start freeCreator
TO PUBLISH REGULARLYProduce more clips with the output and reframe options of the paid plan.
- —1080p export, no watermark
- —Miru reframe
- —25 videos a month
€12/month billed annually (or €15 monthly), 25 videos up to 90 minutes each.
Before you run your video
A few answers.
No shortcuts.
How many clips will I get?+−
It depends on the source and the moments kept. The three examples shown here are a choice for the page, not a yield guarantee. Katto scales the number of clips with the length of the video.
Will the clips be ready in two minutes?+−
This page does not promise a delay. On one measured run, about 5 minutes of worker time produced 8 clips from a 20-minute video. Queue and download time vary with the source, so treat it as a data point, not a guarantee.
Why is there still editing to do?+−
Automatic selection does not guarantee a moment is self-contained, or that every caption and crop is right. The editor lets you check and adjust the clips before export.
Which sources can I use?+−
Paste a YouTube link, or a link from Twitch, Vimeo, Rumble or Zoom, or upload a file directly. Videos up to 90 minutes are supported.
Where is the step-by-step guide?+−
Does your next video
deserve several clips?
Paste a link and get vertical clips you can watch, adjust and export.