One video in.
Weeks of clips out.

One flat price. No credits, no games. Just AI-scored, captioned clips — ready for every platform.

PodcastsInterviewsGamingSportsCourses & webinars

Free to start — No credit card required

Your long video
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92
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91
88
84
12,847
Clips generated
99
Languages supported
~5 min
Average processing
7
Export platforms
Features

Everything you need to go viral.

Powered by AI that understands what makes content perform.

Miru AI Reframe

Our reframe engine tracks faces, reads scenes and switches layouts on its own — the right frame for every second of your clip.

Face trackingSplit screenGrid 2×2StackedSmart letterbox
See it in action

AI Dubbing

1 clip → 8 languages. Your clip speaks Spanish, Japanese or Hindi in minutes.

ENESFRITPTHIJAZH

AI Clipping

Automatically finds the most engaging moments from your long-form content and ranks them by virality.

Product demo — paste a link, get ranked clips
/public/demo_product.mp4

Viral Scoring

Every clip is scored on hook, flow, value and trend. You only export the ones that work.

Virality score92
Hook
96
Flow
88
Value
91
Trend
84

“Strong hook in the first 3 seconds — tight pacing, clear payoff.” We tell you why, not just how much.

Direct Export

Post to 7 platforms — YouTube, TikTok, LinkedIn, Instagram, Bluesky, Mastodon and Threads — with one click. Schedule or publish instantly.

Not just talking heads

Podcasts are easy. Katto also clips what others skip: sports highlights, gameplay, trailers, wildlife — it finds the action, frames it clean, and keeps every on-screen text readable.

AI Captions

Word-by-word subtitles in 99 languages with multicolor highlighting and AI proper-noun correction.

captions in 99 languages

AI Hook

A scroll-stopping first line, burned into the clip. 3–7 words, faithful to what's said.

Generated hook

This changes everything about space

Vocal Cleanup

Background noise gone → studio-clean voice. One toggle.

Before
After
Also in the boxAI Dubbing — 8 languagesAI Hook generatorVocal cleanupBackground musicScheduling & calendarSRT exportAI proper-noun correctionB-rollMulti-aspect export (9:16 · 1:1 · 4:5)Filler-word removal

Stop editing like it's 2019.

The old workflow wasn't “craft”. It was pain.

BASIC AUTO-CROP
MIRU AI

Drag to compare — same fight, two reframes

The old way
  • 4 hours on a timeline for a 30-second clip nobody watches
  • An editor who's been “almost done” since Tuesday — for $1,000s/month
  • Typing captions by hand, word by word, at 2am
  • Guessing which moment might go viral (spoiler: not that one)
  • Export. Re-export. Then upload to 7 platforms… one by one
With Katto
  • Paste a link. That's the whole tutorial.
  • ~5 minutes later: cut, captioned, reframed — done
  • Word-by-word captions in 99 languages, proper nouns fixed by AI
  • Every clip scored on hook, flow, value & trend — post the winners
  • One click → published on all 7 platforms
New

Introducing Miru AI.

Our face-tracking engine locks onto your subject and keeps them perfectly centered in 9:16 — across every cut, every angle, every scene. No manual work. No weird crops.

  • Cinematic camera smoothing
  • Instant snap on scene changes
  • Dynamic split-screen when multiple speakers
  • Safe-zone aware — no decapitations
MIRU AI
Original 16:9
Output
always centered
9:16
Face tracking
Split-screen
Stacked
Lock & Hold
How it works

Weeks of content in ~5 minutes.

No timeline. No keyframes. No manual captioning. Paste a link, post the clips.

01

Paste your video

Drop any YouTube link or upload an MP4, MOV, WebM or MKV. Up to 90 minutes — 5 GB uploads on Creator.

youtube.com/watch?v=…
Generate
02

AI does the work

Transcription, virality scoring, Miru AI reframe, captions — all in ~5 minutes.

Transcription
Virality scoring
Miru AI reframe
62%
03

Post everywhere

Review your ranked clips, edit captions, then export in 1080p or post directly to 7 platforms — YouTube, TikTok, LinkedIn, Instagram, Bluesky, Mastodon and Threads.

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Who it's for

Built for creators who ship.

Whether you post daily or weekly, Katto turns your long-form into a content machine.

YouTubers

Turn 30-min videos into a week of Shorts, Reels, and TikToks.

Podcasters

Extract the best soundbites with captions, ready to post everywhere.

Coaches & Educators

Repurpose lessons and webinars into bite-sized tips that grow your audience.

Marketing Teams

Scale video content without scaling headcount. One upload, all platforms.

Agencies

Deliver social clips to clients in minutes, not days. White-glove speed.

Built in public, by one founder

No fake reviews here. Real ones will land when they're earned.

Katto ships solo and in the open — every feature you just scrolled past was built, tested and deployed by one person, documented as it happens. Try the free plan, break things, and tell me what to build next.

Pricing

Simple, transparent pricing.

Start free. Upgrade when you need more.

MonthlyAnnualSave 25%

Flat monthly price. No credits, no per-minute math — 25 videos is 25 videos.

Free forever
Free
€0/month

For trying Katto. No credit card.

Get started
2 videos per month
720p output
Auto captions (99 languages)
4 caption presets
Center-crop reframe
Miru AI reframe
1080p output
No watermark
Priority processing
Most popular
Creator
12/month

Billed €144/year. Cancel anytime.

25 videos per month
5 GB uploads (500 MB on Free)
Up to 10 moments per video
Auto captions · 99 languages
4 caption presets
Miru AI reframe
Split-screen (multi-speaker)
AI Hook
Vocal cleanup
Background music
Scheduling & calendar
1080p output
No watermark
Priority processing
Direct export to 7 platforms
Email support
FAQ

Questions? We've got answers.

What is Katto?
Katto turns long videos into ready-to-post vertical shorts. It detects the best moments, reframes them in 9:16, adds word-by-word captions in 99 languages with AI proper-noun correction, generates hashtags, and exports SRT subtitles — all automatically.
What video formats are supported?
YouTube links, MP4, MOV, WebM, and MKV files up to 90 minutes. Uploads up to 500 MB on Free, 5 GB on Creator.
How long does processing take?
About ~5 minutes depending on video length. You can close the tab and come back — your clips will be waiting.
What's the difference between Free and Creator?
Free gives you 2 videos per month in 720p with a center crop and a small watermark. Creator unlocks 25 videos per month in 1080p with Miru AI reframe, no watermark, and priority processing.
How much does it cost?
Free forever, no card needed. Creator is €12/month billed annually (€144/year), or €15/month billed monthly — 25 videos per month, videos up to 90 minutes.
Can I cancel anytime?
Yes. Cancel from your billing portal in one click. You keep Creator until the end of your billing period. No questions asked.
How does Katto compare to OpusClip, Submagic and Klap?
Katto gives you 25 videos per month at €12 (annual) — typically more clips for less than OpusClip, Submagic, Klap, Spikes Studio and others — plus captions in 99 languages, virality scoring, a real free plan, and automatic gaming layouts. See the full side-by-side breakdowns on our Compare page.

Still have questions? Contact us

Ready to go viral?

Join creators turning long videos into viral shorts. Free to start, no credit card required.

No credit card required. 2 free videos every month.