Katto turns long videos into scored, captioned vertical clips. Here's what we've already shipped and what we're building next — from AI captions and smart reframe to dubbing, 4K export and a public API.
Vote on what's next →A more robust import pipeline for YouTube and Twitch links, plus honest status messages: if a video is genuinely private, age-restricted or region-locked you're told right away, and a temporary hiccup no longer shows an error next to your finished clips.
Poppins, Montserrat, Inter, Roboto and Bebas Neue join Arial Black and Impact in the caption font picker, so your captions match your brand.
Redesigned caption presets with a clean, premium look (white monochrome plus a few tasteful colour accents), a highlighter-box keyword highlight, emoji support, and timing that never leaves text on screen during silence.
16 named animated caption styles (Punch, Neon, Ember, Pop, Gold and more) with a live preview so you pick the exact look before you render your short-form clip.
Paste a Vimeo, Rumble or public Zoom recording link and Katto turns it into scored, captioned vertical clips, on top of YouTube and Twitch.
Paste a Twitch VOD URL and get captioned 9:16 clips ready for TikTok, Reels and YouTube Shorts.
One-click AI Boost that auto-cuts the dead air between words for a tighter, faster short.
Automatic punch-in zoom on your highlighted keywords to add energy to every clip.
Turn one clip into Spanish, French, Portuguese, Italian, Hindi, Japanese and Chinese with AI dubbing.
Every clip is scored 0 to 100 across Hook, Flow, Value and Trend so you post the ones most likely to go viral.
Export and schedule your clips to YouTube, TikTok, Instagram, LinkedIn, Bluesky, Mastodon and Threads.
Use Katto in English, French, Spanish, Italian, Portuguese, German, Hindi, Chinese, Japanese and Korean.
Auto scroll-stopping hook text, a royalty-free music library, and precise word-level trimming built into the editor.
Describe the moments you want in plain language, or add keyword topics, and Katto prioritises them on top of automatic virality scoring.
Tell Katto up front whether it's a talking-head, presentation, gaming or cinematic video so the AI reframe picks the right framing.
Choose your target clip length and export orientation (9:16, 1:1 or 16:9) before you generate.
Stop a processing job mid-way and your video credit is refunded automatically.
Drag a crop box over the source to frame a clip exactly how you want, instead of relying only on the auto-reframe.
See your edits instantly in the browser (captions, reframe, manual crop, hook, intro title, B-roll, auto-zoom punch-in, background music mix and silence removal) and only render on export. No more waiting on a recalculation.
A full transcript panel: click any word to jump there, and right-click a word to remove it, highlight it in captions, or fix the text inline.
Star your best clips on the results screen and sort them by top virality score, delivery order or length, with a favorites-only filter.
Clip from your own code or an AI agent: a REST API (submit, poll, list, usage, transcript) and an MCP server with six tools for Claude, Cursor and ChatGPT. Safe retries with Idempotency-Key, scoped read-only keys, signed webhooks and a published OpenAPI 3.1 spec.
A rebuilt reframe engine renders your clip identically in the live browser preview and in the final export, what you see is exactly what you get, with no surprises after rendering.
Give each scene its own framing, full-screen face tracking, wide, split-screen, stacked gameplay + webcam, or a 3- or 4-person grid, instead of one layout for the whole clip.
Click the video and drag a crop box with corner handles to pan, zoom and resize the framing of any scene, with the source shown around the frame for context.
Position each speaker in split-screen, place the gameplay and webcam in stacked gaming layouts, or arrange up to four people in a grid, all by dragging each region.
Fine-tune how the auto-reframe camera follows your subject with follow-speed and dead-zone sliders.
A cleaner, faster editor with a distinct video panel, dark timeline lanes, a drag zoom slider and an Apply-changes flow, polished to feel like a real editing tool.
A visible safe zone in the preview so captions and faces never get cropped on any platform.
Save your captions, logo, intro and colours once and auto-apply them to every future clip.
Word-level captions, B-roll and audio on real, editable timeline tracks.
Clean fades, dissolves and zoom transitions between scenes.
A searchable sound-effects library alongside the royalty-free music.
Generate click-worthy YouTube and short-form thumbnails in seconds.
AI upscaling for crisp 4K clip exports.
Expand AI dubbing far beyond the current 8 languages.
A hosted MCP endpoint with browser sign-in, so you connect Katto to Claude, ChatGPT and Cursor by adding a single URL, with no install and no API key to paste.
Select a time window from a multi-hour Twitch or Zoom recording before clipping.
Upload and use your own brand typefaces in captions.
Seats, shared projects and a shared brand kit for teams and agencies.
See which clips actually landed with cross-platform performance analytics.