Resize Video Dimensions Online (1080p, 720p & 480p)
Scale and resize video dimensions to 1080p, 720p, 480p, or custom aspect ratios.
Scale high-definition video files down to 1080p, 720p, or 480p to conserve bandwidth, or adapt widescreen footage to vertical mobile formats using browser-native canvas drawing.
How to Use Resize Video Dimensions Online (1080p, 720p & 480p)
Select Your File
Drag and drop your file or click Browse to select from your device.
Set Target Options
Choose desired format, compression level, or customization parameters.
Convert & Download
Click Convert to process instantly in local memory and save your result.
Frequently Asked Questions
How does downscaling video resolution affect file size?
Downscaling from 4K (3840x2160) to 1080p (1920x1080) reduces total pixel count by 75%, allowing dramatic file size reductions with minimal perceptual loss on phone and laptop screens.
Can I preserve the original aspect ratio to avoid stretching?
Yes. Aspect ratio locking is enabled by default so changing the width automatically calculates the proportional height.
Does video resizing happen locally on my computer?
Yes. All frame rescaling is handled via hardware-accelerated HTML5 Canvas and WebAssembly encoders on your local machine.
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