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.
MP4, WebM and similar. The file is never uploaded.
Download Resized Video
The output format depends on your browser (Chrome/Edge: WebM, Safari: MP4).
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.