rmvbg Studio · reframe
One recording, every shape
Recorded wide but posting a Short? Pick 9:16 and your video is reframed — on a blurred or brand backdrop, or cropped so the action stays in view.
Part of rmvbg Pro.
The short answer
To resize a video for Shorts, Reels or TikTok, open it in rmvbg Studio, choose Edit → Frame and pick 9:16 (or 16:9, 1:1, 4:5). Fit keeps the whole video on a background you choose; Fill crops it and lets you slide the crop, and auto zoom moves the crop to where you type and click. Make video file exports the new size.
How it works
Video resizer in 4 steps.
- 1
Open Frame
In your recording, choose Edit, then Frame.
- 2
Pick a shape
16:9 for YouTube, 9:16 for Shorts/Reels/TikTok, 1:1 square or 4:5 feed.
- 3
Fit or fill
Float the video on a backdrop, or crop it to fill the frame.
- 4
Export
Make the video file in 720p or 1080p.
What you get
Five shapes
As recorded, 16:9, 9:16, 1:1 and 4:5.
Blurred backdrop
Or brand colours — the video floats with soft corners and a shadow.
Smart crop
Zooms move the crop to the action.
Subtitles fit
Captions and titles sit in the space around the video.
Non-destructive
Switch shapes any time; the original stays whole.
Made on your computer
No upload to a video service to export.
Questions and answers
What size is a YouTube Short?
9:16 — 1080 × 1920 pixels. Pick 9:16 in Frame.
Will my wide video be cut off?
Not with Fit: the whole video stays visible on a backdrop. Fill crops it to cover the frame.
Can I make a square video for Instagram?
Yes, choose 1:1, or 4:5 for the taller feed post.
Does the share link use the new shape?
Yes — viewers see the reframed video as soon as you save.
Related features
- Video editorCut the mistakes, pick a shape, add subtitles, zooms, titles and arrows
- Auto subtitlesPress Make subtitles and rmvbg writes down what you say, splits it into short lines and times each line to your voice
- Screen recorderRecord a browser tab, an app window or your whole screen with your camera and microphone, straight from the rmvbg Chrome extension.
- Video sharing & commentsSend one link instead of a big file. Viewers watch in the browser and comment right at the moment they mean
Try video resizer now
rmvbg Studio · Part of rmvbg Pro.