QastX for short-form video: long content → vertical clips that perform
AI finds your strongest moments, reframes to 9:16 and burns in subtitles — ready for TikTok, YouTube Shorts and any vertical feed.
Short-form vertical video is where audiences discover new creators today — across TikTok, YouTube Shorts and other short-form platforms. The production gap is the bottleneck: long interviews, webinars and recordings are rich with great moments, but turning them into vertical clips takes time most creators don't have. QastX closes that gap. Upload any long video, let the AI identify the strongest standalone moments, reframe them to 9:16 with face tracking, and burn in clean subtitles. You get a production-ready batch of vertical clips without spending hours in an editor.
How QastX helps
You have hours of recorded content but almost no short-form presence.
Upload your existing long videos to QastX. AI extracts clip-ready moments and reframes them vertical.
Result: Weeks of vertical content from your back-catalogue — no new filming needed.
You create long-form content and want to feed multiple short-form platforms from a single workflow.
One QastX upload produces clips for all vertical feeds. Same source, multiple exports.
Result: Cross-platform presence from a single clip production run.
Your vertical clips look amateur because the framing is off and there are no subtitles.
QastX auto-reframes with face tracking and generates word-level subtitles with customisable style.
Result: Polished, platform-native vertical clips that match professional production quality.
How it works
Upload your video
File or link. Any horizontal or vertical source.
AI clips and reframes
Finds the best moments, converts to 9:16, adds subtitles.
Download and distribute
Ready-to-post MP4s for TikTok, YouTube Shorts and other short-form platforms.
Tools for short-form creators
Frequently asked questions
Does QastX work with horizontal source footage?
Yes. Most long-form content is 16:9 — we reframe it to 9:16 automatically with face/subject tracking.
Can I use the clips across different platforms?
Absolutely. Export once, post everywhere — TikTok, YouTube Shorts, and any other vertical feed.
What if the AI picks the wrong moments?
You review and select before downloading. Nothing exports without your sign-off.
Is there a free plan?
Yes. Test the full workflow on a real video for free before upgrading.
Start converting your long content into vertical clips today.
Free plan, no credit card. Works with any video source.
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