Your files stay on your device
Resize MP4
MPEG-4 Video. Most widely supported video format
MP4
Drop your MP4 files here
or click to browse from your device
Supports: MP4
Everything runs locally in your browser: nothing is uploaded. Files that don't match MP4 are ignored, and a file that fails resizing marks its own row without killing the batch.
Nothing in yet
Paste, drop, or type to begin. Everything stays on this device.