Pick one video
Open KatKut AI, tap Select 1 video and choose a clip of you talking to the camera. Free accounts can use videos up to 1 minute long; Pro allows 2 minutes, and Pro Plus and Pro Max 5 minutes.
Record yourself talking and KatKut AI does the editing. Eye-catching captions, B-roll footage, motion graphics, sound effects, transitions and a hook that grabs attention, all added automatically by AI. Anyone can do it in a few taps. Export a vertical 9:16 video for TikTok, Reels and Shorts, or a widescreen 16:9 video for YouTube, Facebook and LinkedIn.
Free on iPhone and Android 101 spoken languages, 140 caption languages 9:16 and 16:9 Your video file is never uploaded
See how it works
The editing that usually takes an hour in a timeline editor, done in one pass and left open for you to change.
Captions timed to every word, in the words you actually said, in trending styles that grab attention and keep people watching, even on mute.
How captions workSet the spoken language and the caption language separately. Speak English and caption in Spanish, speak Japanese and caption in English, or keep the language you spoke. Every translated line stays editable.
Translate video captionsFor languages not written in Latin letters, caption in the native script or in Roman letters: नमस्ते or namaste, こんにちは or konnichiwa. Romanising keeps your words and changes only the letters.
Native or Roman, explainedThe AI works out what each moment is about and cuts in licensed stock footage that matches, starting on the word it shows and in the shape of your video. Cutaways stay short and your voice keeps playing underneath, so the focus stays on you.
How B-roll is chosenOur AI finds the moments worth showing and animates them for you, timed to your words, so your video comes back more engaging and easier to follow.
More on motion graphicsAI writes a short, attention-grabbing hook from what you say in the first seconds and animates it over the opening, so viewers stop scrolling and watch.
How the hook is writtenSmooth transitions into your B-roll and sound effects that match what happens on screen, added and timed automatically, so your video sounds professionally edited.
About sound and transitionsExport 9:16 for TikTok, Reels and Shorts, or 16:9 for YouTube, Facebook and LinkedIn. Shot sideways, square or 4:5? Your video is shown in full, with a blurred copy of it or black filling the rest of the frame. Captions, graphics and B-roll follow the shape you choose.
How formats workPick a video, tap Generate, and get a finished edit. Want to change something? Captions, footage, graphics and the hook all sit on one simple timeline, with undo.
What you can editYour phone's hardware encoder renders the final video once, 9:16 or 16:9, at your source's resolution (1080p, 1440p or 4K where your device supports it), and saves it to your gallery.
About the exportIt is built for one job: turning a video of you talking into a video you can post.
You get a finished short first and a timeline second. The automatic result is the starting point, and you change only what you want to.
101 spoken and 140 caption languages, with English in the same list as Japanese, Turkish, Hindi and Arabic. Languages not written in Latin letters can be captioned in Roman letters, and prices are drawn in the currency you said them in.
Our AI picks the moments worth animating and adds the graphics, sound effects and transitions itself, so every video looks professionally edited.
Only the audio is sent for transcription, and the video is rendered on the device. Multi-Clip Reel runs entirely on the phone.
Works with the apps you already use. Share the finished video to TikTok, Instagram or CapCut to add music or a voiceover, and use Multi-Clip Reel to turn a day of clips into one reel.
You make three or four choices. KatKut AI does the transcription, the writing, the footage search and the graphics, then hands the result back to you before anything is rendered.
Open KatKut AI, tap Select 1 video and choose a clip of you talking to the camera. Free accounts can use videos up to 1 minute long; Pro allows 2 minutes, and Pro Plus and Pro Max 5 minutes.
Set the language you speak. Turn on Translate captions to caption in another language, Romanised captions for Roman letters, and Smart B-Roll for footage, motion graphics and a hook. If your video is horizontal or square, pick 9:16 or 16:9. Add a one-line topic if you like, so names and places come out right.
KatKut AI transcribes your speech with word-level timing, writes the captions (translated if you asked), then adds B-roll footage, motion graphics, sound effects, transitions and a hook. Progress is shown stage by stage, and the finished video plays as soon as it is ready.
Tap Edit to change anything: rewrite or retime a caption, move or remove a cutaway, pick a different design, colour or font for a graphic or the hook, or switch caption style. Every change can be undone and shows instantly in the preview.
One tap renders the final video on your phone and saves it to your gallery, ready to share to TikTok, Instagram, YouTube, Facebook, LinkedIn or CapCut. Add music or a voiceover in your usual app if you want to.
Speak in any of 101 languages and caption in any of 140, in the native script or in Roman letters.
Export a vertical 9:16 video for TikTok, Instagram Reels, YouTube Shorts and Facebook Reels, or a widescreen 16:9 video for YouTube, Facebook and LinkedIn. A vertical video is exported 9:16; for a horizontal or square one, you choose. Captions are burned into the picture, so they show on every platform and for people watching on mute. When the export finishes, the video is in your gallery, ready to post from there or from your phone's share sheet.
If your video is you speaking to the camera, KatKut AI removes most of the editing between recording and posting.
Post captioned TikToks, Reels and Shorts in minutes.
Shoot horizontally and export 16:9, with captions, B-roll and graphics laid out for the wide frame.
Speak Spanish, Japanese, Turkish, Hindi, Arabic or any of 101 languages and caption in your own script, in Roman letters, or in another language.
Talk about a place and get matching footage and graphics, added automatically.
Clear captions and automatic graphics make lessons, tutorials and tips easier to follow.
Turn a product video into a polished post with captions, footage and graphics, in minutes.
Real screens from KatKut AI on iPhone. Swipe to scroll.





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Shot a day of short clips? Pick them all. KatKut AI scores every clip for sharpness, exposure, frozen frames and sound, keeps the best moments, and cuts a 9:16 reel at the length you choose, from under 30 seconds to over two minutes. Five styles: Auto, Travel & Adventure, Mini Vlog, Food & Cooking and Unboxing & Style. It decides clip by clip whether to keep the sound, and landscape clips get a blurred fill instead of black bars.
Multi-Clip Reel runs entirely on your phone; no part of your footage is uploaded. Read more about Multi-Clip Reel.
We would rather you know exactly how it works than read a vague promise.
KatKut AI never uploads the video itself. It extracts the audio track on-device and sends only that for transcription. Rendering and export happen on your phone.
The audio track goes to our speech-to-text provider; the resulting text transcript goes to an AI model to write captions, the hook and B-roll search terms. Neither is stored on our servers.
Analysis, selection and export all run locally. Nothing about your clips is sent anywhere.
Read the full privacy policy, including which providers are involved.
Every feature is on every plan, Free included. Paid plans add video minutes and AI-enhanced minutes, allow longer videos, and remove the watermark and ads.
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from $3.99/month
KatKut AI is an AI video editing app for iPhone and Android that turns a talking-head video into a finished video, vertical 9:16 for TikTok, Reels and Shorts or widescreen 16:9 for YouTube. AI adds eye-catching captions in 101 languages (translated into any of 140 if you like), B-roll footage, motion graphics, sound effects, transitions and an attention-grabbing hook, all automatically and all editable before export. A second tool, Multi-Clip Reel, turns many short clips into one reel on your phone.
Yes. Pick a video, choose your language and tap Generate. The AI does the editing (captions, B-roll, motion graphics, sound effects, transitions and the hook) and you get a finished video in minutes. Fine-tune anything in the editor whenever you like.
Yes. Studio exports a vertical 9:16 video for TikTok, Instagram Reels, YouTube Shorts and Facebook Reels, or a widescreen 16:9 video for YouTube, Facebook and LinkedIn. A vertical video is exported 9:16; for a horizontal or square video you choose the format on the setup screen. A video in a different shape is shown in full and centred, with a blurred copy of it or black around it, your choice.
Yes. KatKut AI is free to download and the free plan includes every feature, with 4 minutes of Studio video a month (up to 2 of them AI-enhanced), videos up to 1 minute long, a watermark on exports and ads. Paid plans remove the watermark and ads: Pro is $3.99 a month for 60 minutes and videos up to 2 minutes, Pro Plus $6.99 for 150 minutes and Pro Max $9.99 for 300 minutes, both with videos up to 5 minutes. The local App Store price may vary.
Yes. KatKut AI is on Google Play for Android and on the App Store for iPhone (iOS 16.4 or later), with the same features on both.
No. Your video file never leaves your phone. To make captions, KatKut AI extracts the audio on your phone and sends only the audio for transcription, and the final video is rendered on the phone. Multi-Clip Reel sends nothing at all. The privacy policy lists every provider involved.
Your video can be spoken in any of 101 languages, including English, Spanish, Portuguese, French, German, Turkish, Arabic, Hindi, Japanese, Korean, Chinese and Nepali, and captions can be written or translated into any of 140. Languages not written in Latin letters can be captioned in their own script or in Roman letters.
Yes. Every caption, B-roll clip, motion graphic and the opening hook can be edited, moved, restyled or deleted on the timeline, with undo and redo. The video is rendered only when you tap Export.
Share the finished video from the export screen to the app you post from, such as TikTok, Instagram or CapCut, and add music or a voiceover there. KatKut AI keeps your own voice and adds captions, B-roll, graphics, sound effects and transitions.
Studio is for one video of you talking: it captions, translates and adds B-roll, motion graphics, sound effects, transitions and a hook. Multi-Clip Reel is for many short clips shot across a day: it picks the best moments and cuts them into one reel, entirely on your phone.
More questions about Studio · Accounts, billing and Multi-Clip Reel
Download KatKut AI, pick a video of yourself talking, and get captions, B-roll, graphics and a hook in one pass. Free on iPhone and Android.
Requires iOS 16.4 or later on iPhone. Studio needs a free account (Apple or Google sign-in).