How to resize a video
- Drop your video into the box or choose it. Several videos at once work too.
- Pick a Resolution. The short side of the picture is scaled to that size and the shape stays the same. The resized video plays next to the original so you can compare them.
- Download the resized video.
Video resolutions explained
The “p” number is the height of a landscape video in pixels. Each step down holds far fewer pixels, which is why lowering the resolution shrinks files so much.
| Name | Landscape size | Pixels per frame |
|---|---|---|
| 4K (UHD) | 3840 × 2160 | about 8.3 million |
| 1080p (Full HD) | 1920 × 1080 | about 2.1 million |
| 720p (HD) | 1280 × 720 | about 0.9 million |
| 480p | 854 × 480 | about 0.4 million |
Videos that aren’t 16:9 keep their own shape, so only the short side matches the number. Sizes are rounded to even numbers, which video formats need.
Which size to choose
- 1080p for a 4K phone or camera video that still has to look sharp on a big screen, at a fraction of the size.
- 720p for sharing in chats and email and for watching on small screens.
- 480p for previews, drafts and slow connections, where a small file matters more than detail.
The resized file is saved as H.264 MP4, or WebM if you pick it, at high quality. If it’s still too big, compress the video to lower the quality as well, or trim it to the part you need.