Turning a long video into short-form clips takes three steps: Upload a video file or paste a link from a supported source Our AI scans the content and picks the strongest moments Download ready-to-post vertical clips with captions and titles

How does the AI pick the best moments?

We combine speech analysis, visual cues and pacing signals to surface the moments most likely to hold viewers' attention. Each clip is scored, ranked and trimmed to a hook-worthy length.

Which platforms are the clips made for?

Every clip is rendered as a 9:16 vertical video that fits Reels, TikTok, YouTube Shorts, Snapchat Spotlight, Twitter/X video and other short-form feeds.

What video formats can I upload?

We accept all common formats: MP4, MOV, AVI, MKV and WebM. Maximum upload size depends on your plan (up to 15 GB on Elite), so even multi-hour podcasts and webinars work.

Is there a free plan?

Yes. The free plan includes: • 20 starter credits on signup • Core cutting and subtitle features • A small QastX watermark on output Upgrade any time for watermark-free clips, higher resolution and more credits.

How fast is processing?

Processing speed depends on the source length. A typical 1-hour video is sliced into dozens of clips in around 5–10 minutes — orders of magnitude faster than editing by hand.

Which video sources do you support?

You can either upload a file directly or paste a link from: • Twitch (VOD and clips) • Vimeo • Google Drive (public/share link) • Dropbox (public/share link) • Direct MP4/MOV URL We focus on sources where you own or have rights to the original.

Can I export clips without a watermark?

Yes — every paid plan (Pro, Expert, Elite) renders clips without any QastX watermark. The free plan keeps a small mark so we can offer it sustainably.

What if credits were charged but no clips were produced?

We refund failed jobs and we're happy to investigate any edge case. Email us at support@qastx.com and we'll look into your project the same day.

What if I see an error after cutting?

If something goes wrong with a render: Reach out to support@qastx.com — include your project link and we'll resolve it quickly.

How do I cut a long video into shorts automatically?

Upload a long video or paste a supported link. The AI finds strong moments, reframes them to vertical 9:16 and adds captions. In a few minutes you get ready short clips without manual editing.

How many short clips can one long video produce?

A typical one-hour video produces 20 to 100 clips. The exact number depends on how dense the source is: a dynamic stream creates more highlights than a calm lecture.

Can I cut streams or podcasts into clips?

Yes. QastX is built for long-form content: streams, podcasts, webinars, interviews and lectures. The AI extracts standalone moments and turns them into vertical short videos.

Do I need editing skills to use automatic clipping?

No. Moment selection, trimming, vertical framing and captions are handled automatically. You only upload the source, review the result and download the finished clips.

What format do exported clips use?

Clips are exported as vertical 9:16 MP4 files. They are ready for Shorts, Reels, TikTok, Snapchat Spotlight and other vertical short-form channels.

Where can I upload source videos from?

You can upload MP4, MOV, AVI, MKV or WebM files directly, or paste a supported public link such as Google Drive, Dropbox, Vimeo, Twitch VODs and direct video URLs.

✂️ AUTO CUTTING

Cut one video into dozens of Reels and Shorts

Automatic AI cutting of a long video into many clips. From a 1-hour video — 20 to 100 ready Reels and Shorts

Try it now — paste a link to your video

20-100 Reels and Shorts from one videoFor podcasts, interviews, presentationsAutomatic processingPerfect for podcasters, bloggers, creators and marketing agencies

How it works

How it works 5 steps

Advanced AI technology for automatic video cutting

Upload a video

Local file MP4, MOV, AVI

Find the best moments

AI analyzes meaning and finds viral moments

Add captions

Automatic captions with beautiful styling

Create titles

Generate viral titles for each clip

Get results

20-100 ready Reels and Shorts with titles and descriptions

Ready to start creating viral Reels and Shorts?

Join thousands of creators who already cut reels and shorts automatically

✓ No watermarks✓ Any video formats✓ Automatic captions✓ Results in minutes

How it works

Advanced AI technology for automatic video cutting

Paste a link

from YouTube, Vimeo or cloud drive

Click 'Cut'

and wait for the result

Wait a bit

~5 minutes per reel

Upload to social media

YouTube, TikTok, Vimeo

Get reach

and repeat with the next video

Features

Cutting capabilities

Use the power of AI to create viral content

Smart cutting

AI analyzes content and finds the most engaging moments, automatically creating captivating short videos with perfect timing

Auto adaptation

Instantly convert horizontal videos into vertical format with perfect framing of main subjects

Ready formats

Optimized for Reels, YouTube Shorts and TikTok considering each platform's requirements

AI captions

Automatic creation and styling of captions with accurate speech recognition to grow silent views

Fast results

Save up to 90% time on editing — get ready clips in minutes instead of hours

Quality assurance

Preserve high video and audio quality during conversion, protect from pixelation and compression artifacts

FAQ

Frequently asked questions

Everything you wanted to know about AI-powered video cutting

AI clipping for Shorts, Reels and TikTok

QastX turns long videos, podcasts, webinars and streams into short vertical clips. The AI scans the transcript, pacing and visual flow, then exports standalone moments with captions and a mobile-first crop.

Turn your video into Reels and Shorts

AI picks the viral moments, reframes to vertical and adds subtitles. Free to start.

Start clipping for free Learn more about the tool

Cut one video into dozens of Reels and Shorts

How it works 5 steps

Upload a video

Find the best moments

Add captions

Create titles

Get results

Ready to start creating viral Reels and Shorts?

How it works

Paste a link

Click 'Cut'

Wait a bit

Upload to social media

Get reach

Cutting capabilities

Smart cutting

Auto adaptation

Ready formats

AI captions

Fast results

Quality assurance

Frequently asked questions

How does QastX work?

How does the AI pick the best moments?

Which platforms are the clips made for?

What video formats can I upload?

Is there a free plan?

How fast is processing?

Which video sources do you support?

Can I export clips without a watermark?

What if credits were charged but no clips were produced?

What if I see an error after cutting?

How do I cut a long video into shorts automatically?

How many short clips can one long video produce?

Can I cut streams or podcasts into clips?

Do I need editing skills to use automatic clipping?

What format do exported clips use?

Where can I upload source videos from?

AI clipping for Shorts, Reels and TikTok

Show detailed guide

Turn your video into Reels and Shorts

See also