The format matches the platform
Every export is MP4, H.264, 1080 x 1920 at 30 fps, the vertical frame Shorts expects, with no other ratio offered.
YOUTUBE SHORTS MAKER
Make YouTube Shorts from a long video.
A YouTube Short is a vertical clip, and shortshort cuts that kind of clip from a long video file: 15 to 90 seconds, closing on a complete sentence. This page is the same shortshort studio as the rest of the site, with two limits stated up front: it does not fetch a video from a YouTube link, and it does not post the result to your channel.
60 free credits, no cardUp to 3 hours per videoMP4 · 1080 × 1920
A 60-second target still ends on a full sentence
The AI is allowed a 25% margin, so a short set at 60 seconds can run between 45 and 75 and still finish the speaker's thought.
Ten shorts from a single upload on Creator
One upload yields up to 10 shorts on Creator and up to 20 on Studio, while Free stops at 3 and Starter at 5; no two of them share a passage of the source.
How to do it
Four steps. About two minutes of your time.
- 01Find the master file you uploaded to YouTube, MP4 or MOV, and upload that rather than its URL
- 02Pick a length under 60 seconds and how many shorts to look for
- 03Adjust the crop, the zooms and the caption style on each proposal in the studio
- 04Download each MP4 and upload it to YouTube from your own account
What this page does not promise
No YouTube link import: shortshort takes the file from your disk, not a URL.
No direct upload to YouTube: each short is downloaded as an MP4 and posted by you.
Questions people ask
Can I paste a YouTube URL instead of uploading a file?
No. shortshort works on a file you own, in MP4, MOV or WebM, up to 3 hours and 2 GB. Download your original from YouTube Studio or use the master file from your editor, then drop it in.
Are the shorts the right size for YouTube Shorts?
Yes. Every export is 1080 x 1920 pixels, 9:16, H.264 in an MP4 container at 30 frames per second. That is the only output format, so there is nothing to convert before uploading.
How long should a YouTube Short be here?
Anywhere between 15 and 90 seconds is allowed, and the clip may end up to 25% shorter or longer than your target so it closes on a sentence. Set 45 seconds if you want to stay comfortably under a minute after the margin.
Does it publish to my channel?
No. There is no connection to YouTube or any other platform. You download each short as a separate MP4 file and upload it yourself, which also means the title and description on YouTube are entirely yours to write.
Does the free plan work for YouTube Shorts?
Yes, with two conditions: up to 3 shorts per video and a watermark on the export. The 60 credits included at sign-up cover a 60-minute video. Starter at 12 EUR a month removes the watermark and raises the ceiling to 5 shorts per video.
Is this a standalone Shorts tool?
No, it is the shortshort studio, reached from a page written for people searching for a Shorts maker. The same AI selection, editor and export serve every other page on this site.
A 38-minute YouTube video on Creator, 6 shorts, one drop.
Free to try with 60 credits. Your source video stays yours; the shorts you export join the community, and a plan keeps them out of it.