Resize Video
Change video resolution, or fit it to a social media size
- Files never leave your device
- Runs in your browser
- Free, no sign-up, no watermark
Drop a file here, or click to choose
Accepts MP4, MOV, WebM, MKV · You can also paste with Ctrl+V / ⌘V
How to use Resize Video
Change a video's resolution or reshape it for social media. Scale to 1080p, 720p and other standard sizes, pick a 9:16, 1:1 or 4:5 frame, or enter exact pixels. When the shape changes, choose whether to pad, crop or stretch.
- 1
Drop a video on the page.
- 2
Pick a size under Keep aspect ratio (2160p to 360p) or Social media (Story 9:16, Square 1:1, Portrait 4:5, 1920×1080, 1280×720), or type a Custom Width and Height.
- 3
If the shape changes, choose Fit with a Background color, Fill or Stretch; the preview shows the result.
- 4
Choose Format and Quality, click Resize to the new size, then Download.
Frequently asked questions
What is the difference between Fit, Fill and Stretch?
Fit shows the whole picture and fills the empty space with a color. Fill covers the frame and crops what sticks out. Stretch fills the frame exactly by distorting the picture.
Why did my width or height change by one pixel?
Video encoders need even dimensions, so odd values are rounded to the nearest even number.
Can I make a video larger?
Yes, but upscaling only makes the file bigger; it cannot add detail that was not filmed. The tool warns you when the target is larger than the original.
Is the sound kept?
Yes. The audio track is kept and is only re-encoded if the chosen format needs a different audio codec.
Is my video uploaded?
No. Resizing uses your browser's hardware-accelerated video encoder where available. Videos your browser cannot decode are handled by ffmpeg, which downloads once (about 32 MB) and is slower.