AI short-form video editor for Reels, Shorts & TikTok
Edit an existing short recording or generate clip candidates from a longer video. Review the point, pacing, vertical framing and captions, then finish the clips you choose.
Cubix processing
- Finding moments
- Tightening pacing
- Reframing 9:16
- Adding captions
YouTube Short
Instagram Reel
TikTok video
One source. Multiple short-form edits.
AI editing for short-form video
Choose the workflow for your source. An already-short recording can be edited directly; a long conversation can go through Social Clips to produce candidates. In either case, check that the clip makes sense on its own, the crop keeps useful detail visible and the captions match the actual speech.
What Cubix can edit and review
Tighten the pacing
Shorten long gaps, then listen around each cut and keep pauses that help the point land.
Add captions
Generate captions, correct their text and preview the style and position on a phone.
Add B-roll
Upload the supporting visuals, identify their filenames and specify where they should cover the spoken explanation.
How to edit short-form videos with AI
Choose the workflow for your source
Upload an already-short recording to the editor, or choose Social Clips for a longer video. For candidate clips, specify a count, length preference and instructions instead of expecting every source to support the same number of useful moments.
Request the clip’s treatment
State what the clip should communicate and which footage to use. This example is for an uploaded spoken clip; review the result rather than assuming it guarantees a publishable output.
Make this spoken clip 9:16, shorten long gaps, and add readable captions. Preserve the complete point and its ending. Keep the speaker in frame and avoid cutting into words.
The short-form pass
- Complete point
- Speaker and useful detail in frame
- Correct caption text
- Natural cut boundaries
Review, adjust and export
Watch the clip independently of the source. Check names, text placement, the crop and its ending. Export it directly from Social Clips or open it in the full editor to finish the changes.
Review the finished video on a phone before uploading it to the destination platform.
Create Shorts, Reels and TikToks from the same footage
Use one source video to create polished short-form content for the platforms you publish on.
YouTube Shorts
Create vertical Shorts with tight cuts, captions, and mobile-first framing.
Instagram Reels
Turn your footage into polished vertical Reels ready for your feed.
TikTok videos
Create fast-moving vertical edits with captions and visual emphasis.
Short clip packs
Pull multiple standalone moments from a longer recording instead of making one clip at a time.
More than a 9:16 crop.
Just resizing the video
- Starts wherever the original clip starts
- Important action may fall outside the crop
- Long pauses stay in
- Captions still need to be created
- Clip may not make sense by itself
A short-form edit with Cubix
- Finds a moment that can stand on its own
- Reframes around the speaker or action
- Tightens pauses and pacing
- Adds readable captions
- Lets you refine the final edit
Fast first edit. Full control after.
Cubix automates the repetitive work, but every short stays editable before you publish.
- Change clip boundaries
- Adjust the 9:16 framing
- Restyle captions
- Move or remove punch-ins
- Choose or replace uploaded cutaways
- Fine-tune audio
- Export when it feels right
Who is this short-form video editor for?
For anyone turning recorded footage into short, repeatable social content.
YouTube creators
Repurposing longer uploads into Shorts.
Podcasters
Turning full conversations into standalone clips.
Creators posting Reels or TikToks
Producing vertical content consistently.
Founders & experts
Turning opinions, lessons and updates into short social videos.
Social media teams
Creating multiple clips from existing content.
Marketers
Repurposing webinars, demos and interviews for social channels.
Guides for short-form editing and clip review
AI short-form video editing FAQs
Open Cubix, upload your recording and choose a workflow or describe the edit you want. You can explore the editor before selecting a plan. Current plans, trial availability and billing details are listed on the pricing page.
Creator supports exports up to 1080p, and Pro supports exports up to 4K. Choose the plan that covers your intended export resolution. A higher export resolution does not restore detail missing from your source recording.
An AI short-form video editor automates parts of turning recorded footage into short social videos, such as finding useful moments, cutting pauses, reframing to vertical, adding captions, and polishing the edit for platforms like YouTube Shorts, Instagram Reels and TikTok.
Yes. Cubix can analyze longer footage, identify strong moments, and turn them into shorter clips that can be edited, reframed and captioned for vertical platforms.
Treat the results as candidates. Check the source context, opening, completeness of the answer and ending. Revise or reject a candidate that changes the meaning or depends on missing context.
Yes. Cubix can reframe horizontal footage for vertical formats while keeping the important speaker or action in frame. You can adjust the framing before exporting.
Yes. Cubix can generate word-timed captions and lets you customize their style, colors, emphasis and position before export.
Yes. Cubix can identify multiple useful moments in a longer recording and create separate clips that you can review and refine individually.
Yes. Review generated clips in Social Clips and open a selected clip in the full editor for timeline revisions. Export a clip directly as MP4 when it is ready, or finish cuts, captions and other details in the editor first.
Yes. Cubix can create vertical short-form videos suitable for YouTube Shorts, Instagram Reels and TikTok from the same source footage.
You can use creator videos, podcasts, interviews, webinars, YouTube videos, tutorials, product recordings and other recorded footage as source material for short clips.
Yes. You don’t need to start with a long video. Cubix can also tighten and caption an existing short clip. Open it in the editor and specify the changes; use Social Clips when you need candidate excerpts from a longer recording.
Short-form editing here is about making a vertical clip that stands on its own for YouTube Shorts, Instagram Reels, or TikTok. Marketing video editing is about turning campaign footage into multiple placements — including social variants — while keeping brand styling consistent.
Your next video doesn’t need hours of editing.
Upload your footage. Tell Cubix what you want. Let the AI handle the edit.
Edit my short-form video