Turn your wide video vertical
Reframe a wide 16:9 clip as a tall 9:16 video, without squashing anything. It runs in your browser, so your video stays on your device.
or drop it here
Up to 720p · no watermark
Editing on your phone?
The ClipSizer app for Android is on its way.
How it works
Choose your wide video
Any landscape clip works: a camera video, a screen recording or a phone video filmed sideways.
Pick how to fill the frame
Fill crops to the tall frame, and you drag to keep the action in view. Blur keeps the whole picture, with a blurred copy above and below.
Save the vertical video
Download it, ready for TikTok, Reels or Shorts. Up to 720p, no watermark.
Wide vs vertical on TikTok (from TikTok's ad specs)
| Vertical (preferred) | 9:16, at least 540 × 960 |
|---|---|
| Wide | 16:9, at least 960 × 540 |
Source: official help page, checked Oct 2026
Questions
Do you upload my video?
No. The conversion runs on your device, so your video is never uploaded anywhere.
Does it work on iPhone?
Yes, Safari on recent iPhones works. Very long or 4K clips can be too big for the phone browser, so try a shorter clip or use a computer.
Will my video look stretched?
No. It keeps its proportions. Fill crops the sides to fill the tall frame; Fit and Blur keep everything and fill the space above and below.
Can I choose which part stays in?
Yes. With Fill, drag the preview left or right to keep the important part in the frame, and zoom in if you like.
Is this the same as rotating it?
No. Rotating would turn the picture on its side. This keeps it upright and reframes it for a tall screen.
More free tools
Resize video
Turn any clip into a full-screen vertical TikTok. It runs in your browser, so your video stays on your device.
Resize video
Shorts are vertical. We reframe your clip to 9:16 so it fills the phone screen, and your video stays on your device.
Resize video
Crop your clip to a 1:1 square, or keep the whole shot on a blurred background. It runs in your browser, so your video stays on your device.