How to turn one long video into many shorts

Shooting the video isn't the end. You still cut the best moments, go vertical, add captions, and post to each platform. OneCut hands that grind to AI: upload one long video, and several shorts are created automatically.

1. Upload one long video

Podcasts, vlogs, lectures — length doesn't matter. Just drop one MP4 or MOV file into the AI Content Assistant. No pre-cutting or editing required.

2. AI finds the highlights and makes shorts

AI transcribes the audio (STT) and auto-picks the highlight moments most likely to perform, presenting them as candidates. Choose the clips you want and they're rendered as 9:16 vertical shorts with burned-in captions. The first 3 are free to try; after that, each short uses 1 credit.

3. Review and publish at once

Preview the finished clips, pick the ones you like, and publish. YouTube, Instagram, Facebook, and Threads post automatically; TikTok is sent to your in-app inbox, where you tap once to publish. Post now or schedule for the best time.

Tips for better shorts

• •Prefer moments with a strong hook in the first 3 seconds.
• •Shorts usually travel best at 15–60 seconds.
• •Captions and hashtags are tailored per platform by AI automatically.

Keep the time you spend making one video — and fill a week of shorts from that one upload. You get more time back for planning content.