Create and Convert 9:16 Video for Mobile
Create or prepare 9:16 video drafts in Vidu for mobile-first viewing on social feeds, stories, and short-form platforms. Start from a script, image, clip, or rough edit, then check framing, captions, and crop safety before export. Vidu helps creators and teams keep the main action visible in a vertical layout.
When Vertical Video Works Best
Use this section to decide whether a 9:16 format matches your concept, subject matter, and delivery channel. It highlights practical signals that point toward stronger mobile attention, cleaner framing, and a more polished vertical presentation.
What Is a 9:16 Video?
9:16 video is a vertical aspect ratio commonly used for mobile-first content. The frame is taller than it is wide, so composition choices matter more than simply cropping a horizontal video. Vidu helps creators think through framing, subject placement, and vertical video preparation as part of a broader workflow.
How to Use 9:16 Video
Find Prompt Ideas
Open Explore or the Template page to discover text-to-video ideas, then choose a concept that fits a vertical 9:16 video before you start writing your own prompt. If your source visuals need refinement, the image enhancement workflow can help you prepare them first.
Write Your Prompt
Type a clear text prompt in the input box and describe the scene, style, and camera angle you want so the generator can produce a more accurate video. If you need to continue a clip smoothly, the scene atmosphere should stay consistent from one shot to the next.
Set Options and Create
Adjust the style, number of videos, and 9:16 aspect ratio so custom background clips and your main footage fit the vertical frame naturally before you generate the final result.
9:16 Video Workflow vs Manual Editing
Use this table to compare how Vidu’s text-to-video setup supports vertical 9:16 drafts for mobile feeds, stories, and short-form platforms, versus a manual editing flow that starts from existing footage and crops later.
| Decision Area | Vidu Text to Video | Manual Or Generic Workflow |
|---|---|---|
| Starting point for a vertical draft | Enter a prompt and choose 9:16 before generating the first version | Build in a standard timeline first, then adapt the frame for vertical output |
| Framing check | Review subject placement, headroom, and crop safety in the generated vertical draft | Check framing after editing, when fixing cutoffs may require reworking the sequence |
| Motion and scene direction | Use prompt details plus motion level and style to shape how the vertical shot feels | Rely on existing footage or generic templates, with less control over scene behavior |
Creative Ways to Use 9:16 Video
These examples show how the 9:16 video workflow can support practical review paths for creators, marketers, and teams working on vertical content, especially when they start from video templates and a reference-based video setup.
Vertical Draft Setup
Set up the source clip, the vertical format goal, and the review points before generating a 9:16 video draft that is easy to evaluate for mobile viewing.
Vertical Video for Mobile
Turn one 9:16 video into polished creative for Reels, Shorts, Stories, and mobile ads, keeping the framing, pacing, and visual impact strong across fast scrolling feeds.
Approval Readiness
Check whether the draft is ready for approval, needs refinement, should be tested in another format, or calls for a new direction.
Short Form Social Content
Turn ideas, clips, or rough edits into vertical social-ready drafts that feel natural on a phone screen. This use case helps you keep the hook, captions, and key action inside the safe area so the first review is about message clarity, not awkward cropping. It matters because short-form platforms reward content that is easy to scan, easy to understand, and built for fast mobile engagement.
Product Demos
Present your product in a vertical format that feels native to mobile viewing, with the key features, hands-on moments, and motion kept centered and easy to scan. This makes it easier for reviewers to judge whether the demo is clear, polished, and persuasive at a glance, without losing the details that matter. Product demos in 9:16 are especially valuable when you want to turn a feature showcase into a social-ready asset that can hold attention in feeds, stories, and short-form placements while still communicating the product’s real value.
Creator Videos
Turn creator-led clips into a vertical format that feels natural on phones and social feeds, with the face, captions, and key gestures staying easy to read at a glance. The review outcome is a cleaner, more watchable draft that keeps the creator’s presence front and center. This use case matters because personal content depends on expression and timing, and 9:16 framing helps that connection survive the mobile crop.
Aspect Ratio Checks Before Export
Use this framing check before export when a 9:16 video needs a quick look for framing, spacing, and crop safety in the framing check before the next edit.
Source Check
Start with a clean source, script, or reference so the 9:16 video output can be evaluated against the original idea without guessing what was changed.
Prompt Formula for 9:16 Video
Shape your 9:16 video request around the result you want from Vidu, whether that means creating a vertical clip or converting existing footage into a format that fits TikTok, Reels, and Shorts. The tool is built to help you work in 9:16, 4:5, or other vertical layouts without losing the focus of the original video.
Source
Start by naming the exact material Vidu should use for the 9:16 video, whether it is a clip, still image, audio, script, source face reference, or quality issue that defines the job. Add only the context that affects the output, such as format, subject, scene, duration, language, or target channel, so the first draft stays aligned with the intended vertical task.
Direction
Write the instruction as a production note for 9:16 video, not as a vague creative wish. Describe what should change, what should stay consistent, and the visible or audible result you expect. If the shot needs a new setting, build the scene background prompt around the background, motion, and mood first, then keep the request narrow enough that one generated version can be compared fairly against the original brief.
Review
Before keeping the 9:16 video result, define the review condition in plain terms: what must look natural, sound clear, remain stable, or match the intended use. Check the output in the context where it will be published, then decide whether to export, refine, or restart with a sharper instruction.
Format Videos for Mobile Feeds
Frequently Asked
Questions
Vertical mobile video means a tall frame designed for phone viewing, where the subject, captions, and motion need to fit naturally inside a narrow screen. It is not just a crop from a wider clip. The composition should be planned so the main action remains visible and the final result feels intentional on mobile platforms.
Prepare Vertical Videos
Use Vidu to prepare a 9:16 video draft and review whether the vertical frame keeps the subject clear.