QastX for YouTube Shorts: long video → Shorts pack in minutes
AI scans your source video, picks the strongest opening hooks, reframes to vertical and burns in subtitles. No timeline editing.
YouTube Shorts is the fastest organic channel on the platform right now. Channels that post 1–2 Shorts per day see measurably higher recommendations on their long-form videos. The blocker is production time — manually finding a 60-second hook in a 50-minute video takes hours. QastX removes that blocker. Upload your video or paste a YouTube link; the AI reads the structure, identifies moments with strong opening hooks, reframes each one to 9:16 and adds auto-generated subtitles. You get a ready-to-upload Shorts pack without touching a timeline editor.
How QastX helps
You have a backlog of long videos that would work as Shorts but you never have time to cut them.
Upload each backlog video to QastX — AI extracts and reframes the best 60-second moments.
Result: Weeks of Shorts from content you've already made.
Your Shorts are inconsistent because cutting them manually takes too long between uploads.
Every time you upload a long video, run it through QastX in parallel. Shorts pack is ready when you are.
Result: Consistent daily Shorts without adding hours to your workflow.
You want to repurpose podcast or interview content as Shorts but the framing is all wrong.
QastX auto-reframes talking-head footage to 9:16 with face tracking and adds word-level subtitles.
Result: Talking-head interviews become Shorts-native clips — no letterboxing, no manual crop.
How it works
Upload or link
Drop your file or paste a YouTube / Google Drive link. We fetch and process the source.
AI clips the hooks
Our model finds the strongest 30-to-60-second moments and auto-reframes to 9:16.
Download and post
Export Shorts-ready MP4s with burned-in subtitles. Upload directly to YouTube.
Tools for YouTube Shorts creators
Frequently asked questions
What video length works best?
Anything from 5 minutes to several hours. QastX is optimised for long-form-to-Shorts workflows, but shorter sources work too.
Can I choose which clips to keep?
Yes. After the AI suggests a set you can review each clip, trim timing and pick which ones to export.
Do subtitles work in languages other than English?
Yes. We transcribe in the spoken language and optionally translate subtitles to any target language.
Is there a free plan?
Yes. The free plan covers a real Shorts production run so you can test the quality before upgrading.
Your next batch of Shorts is one upload away.
Free plan, no credit card required. Try a real video now.
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