What is Katto?

Katto is an AI video clipper that extracts and ranks short-form moments from long videos for social platforms.Automated moment detection and virality scoring (hook, flow, value, trend) surface top clips for TikTok, Instagram Reels, YouTube Shorts and other channels.

Smart reframing converts 16.9 source footage to vertical and square formats, follows speakers and action, and supports multi-face and split-screen layouts.Word-synced captions in 99 languages, AI dubbing in multiple languages, animated captions and editable transcriptions enable fast localization and text-based editing.

Automated audio cleanup, silence removal, AI b-roll insertion and visual treatments prepare clips for posting while keeping all edits editable.Export, schedule, and publish to multiple platforms with multi-format exports (including 4K) and integrate programmatically via REST API, webhooks and OpenAPI.

Katto on the web:

Katto details

Jurisdiction: Japan
Built for: Individuals
Data residency: US and EU (Cloudflare, Railway, Hetzner, Germany)

Katto pricing

Free trial

Free €0/mo

Creator €12/mo (billed annually)

$12/mo is about average for Video Editing median $12.50/mo

Most Video Editing tools start between $8 and $22.42 a month.

Auto-renewal: Yes

Trial, refund and renewal terms as stated in Katto's own published documentation.

Verify on the official pricing page.

Start free trial

Katto's key features

Automated moment detection and virality scoring (hook, flow, value, trend)
Smart reframing to vertical/square formats (9:16, 4:5, 1:1) with speaker/action tracking, multi-face and split-screen layouts
Word-synced captions (99 languages), AI dubbing, animated captions and editable transcriptions
Automated audio cleanup and silence removal, AI b-roll insertion and visual treatments with editable edits
Export, schedule and publish multi-format (including 4K) with programmatic integration via REST API, webhooks and OpenAPI

Katto use cases

Create dozens of platform-ready short clips from hour-long webinars, podcasts, or interviews using katto's viral moment detection and ranking, automatically reframe footage for vertical/square formats, add synced captions and cleaned audio, then export and schedule multi-format posts without manual editing
Repurpose livestreams and long-form recordings into localized short-form content by auto-generating multilingual captions and dubbed audio, inserting b-roll for visual variety, applying smart vertical reframing, and pushing optimized clips via API to your publishing workflow
Scale social growth for creators and brands by automatically extracting high-engagement moments, polishing audio, adding captions and b-roll for professional quality, reformatting for each platform, and exporting/scheduling optimized reels, shorts, and posts across channels