An AI video editor that runs in your browser
NinjaClip turns a raw recording into a finished video: it cuts the pauses, reads what was said to drop the false starts, writes the captions and reframes the speaker for vertical. Nothing to install.
The video file is read straight from your computer and never uploaded. Cutting pauses is free and needs no account.
Cutting pauses is free and needs no account.
How it works
This is what happens the moment you open a recording, before you decide anything.
What you get
Every one of these is a switch. Turn on what this video needs and leave the rest alone.
Pauses cut automatically
Silence, hesitation and dead air are removed in the browser, before anything is uploaded. Free, no account.
The AI reads what was said
False starts, repeated lines and off-script chatter are flagged one by one, for you to approve or keep.
Captions from the speech
Already in sync, with ready-made styles and a screen to fix proper nouns before export.
Reframing that follows the face
16:9, 9:16, 4:5 and 1:1 from one recording. The crop tracks whoever is speaking, one framing per take.
Colour measured on your footage
White balance, levels and contrast from your own material, plus looks. Two cameras are matched to each other first.
Your video never leaves
The file is read straight from your computer. Only the audio goes out, and only when you ask for captions or take selection.
Questions
The ones people ask before trying it.
What is NinjaClip?
NinjaClip is an AI-powered automatic video editor that turns raw footage into a polished, ready-to-publish video: it cuts the pauses, picks the good takes, writes the captions, reframes the speaker and corrects the colour. It runs in your browser, and there is also a desktop app for long material.
What does NinjaClip do?
It removes silence and hesitation, reads the transcript to flag false starts and repeated lines, generates captions in sync, reframes 16:9 footage to 9:16, 4:5 or 1:1 following the speaker, levels the voice, corrects colour, adds a soundtrack that ducks under speech, and exports the finished video or a timeline for Premiere, Final Cut and DaVinci.
Does NinjaClip work in the browser?
Yes. Editing runs entirely in the browser and your video file is read straight from your computer — it is never uploaded. Producing the final file works in Chrome, Edge, Safari and Firefox; Firefox writes WebM instead of MP4.
Can NinjaClip automatically add captions?
Yes. Captions are generated from the speech, already timed, with several styles and a correction screen for names and jargon. Only the audio is sent for transcription, and it is not stored.
Is NinjaClip free?
Cutting pauses is free and needs no account. Captions, take selection, soundtrack and export need a free account, because they use a server — five videos a month while the beta lasts.
Does it work in languages other than English?
Yes. The spoken language is detected automatically, so the captions and the transcript come out in whatever was said. The interface is available in English and Portuguese.
How long can the video be?
Up to 30 minutes of combined footage per project in the browser — the ceiling is the browser's memory during export, not a plan limit. The desktop app has no ceiling.
Related pages
Same product, described for a different starting point.
Open a raw video and watch the first edit appear
Nothing to install, no account to try it, and your file never leaves your computer.
Start editing