Video Resizer
Change a video's resolution — for example from 4K down to 1080p or 720p — to cut file size while keeping the picture sharp. The re-encode runs in your browser, free and without a watermark.
How to use
- Select your video file — its original resolution will appear below.
- Choose the target resolution (720p is the most common).
- Press Resize Video, wait for the processing to finish, then download.
Tips
- Going from 4K to 1080p quarters the pixel count, so the file shrinks a lot while still looking sharp on most screens.
- Downscaling saves space, but upscaling cannot add detail that was never there.
- Choose the resolution for where the video will be watched — a phone screen rarely needs 4K.
Note: resizing happens in real time (the longer the video, the more time it takes). Audio is kept as it is.
Frequently Asked Questions (FAQ)
What resolutions can I convert to?
You can lower your video to resolutions like 1080p or 720p; 720p is the most common choice for sharing.
Will resizing make the file smaller?
Yes. A lower resolution means a smaller file, while the tool keeps the quality as high as possible at the new size.
Can I upscale a video to a higher resolution?
You can pick a higher target, but upscaling cannot add detail that was never there — it only helps when you need a specific output size.
What format does the resized video download as?
It depends on your browser: Chrome and Edge give WebM, Safari gives MP4.
Is my video uploaded to a server?
No. Everything happens in your browser, free with no signup.