Resize video for Reels, Stories and Shorts
Turn a video into 9:16 for Reels, Stories, TikTok and Shorts, or into 1:1, 4:5 or 16:9. Crop it to fill the frame or keep the whole picture on a blurred background.
- Runs in your browser
- No upload
- Check before download
Choose a video
Or drop one video file here.
Your video stays on this device. Nothing is uploaded, so even large files start right away.
Resize video for Reels, Stories and Shorts
One MP4, MOV, M4V, WebM, MKV or TS video up to 1 GiB and 3 hours. The finished MP4 is kept in memory until you download it.
Your video
Choose a video
Resize video for Reels, Stories and Shorts
- Choose a video
Optionally use only part of it.
- Pick format and fit
9:16, 1:1, 4:5 or 16:9; fill the frame or keep the whole picture.
- Create and download
The H.264 MP4 is re-opened and checked before download.
Frequently asked questions
Which format is right for Reels, TikTok or Shorts?
Use 9:16 (1080 × 1920) for Reels, Stories, TikTok and Shorts. 1:1 and 4:5 suit feed posts; 16:9 suits YouTube.
Will part of my video be cut off?
With Fill the frame, yes: what does not fit is cropped, and the slider picks which horizontal part stays visible. Whole picture, blurred background keeps everything and fills the space with a blurred copy.
Does it work on my phone?
It depends on your browser’s support for video encoding. The video is always re-encoded to H.264, which works in current Chrome and Edge on computers; in Safari, Firefox and on phones it varies. If your browser can’t do it, the tool tells you clearly.
Is my video uploaded?
No. It is processed in your browser on this device; nothing is sent to a server.
Tips & guides
Image too large to upload?
Check the destination’s format, dimensions and file-size limit before making another copy.
Read the guide