Video Resize
Scale videos to the exact resolution you need.
Resize any video to 1080p, 720p, 480p or 360p while preserving the original aspect ratio, using FFmpeg compiled to WebAssembly. Perfect for hitting upload limits or saving bandwidth — all done locally, with no uploads.
- No watermark
- No signup
- 100% private
Drop your video here
MP4, WebM, or MOV files up to 100MB are supported for optimal browser processing.
Everything in the Video Resize tool
Purpose-built controls that make the job fast, precise and effortless.
Preset resolutions
Jump to 1080p, 720p, 480p or 360p with a single click.
Ratio preserved
Width scales automatically to prevent any stretching or distortion.
In-browser FFmpeg
Scaling and re-encoding run locally via WebAssembly — no servers.
Fully private
Your video is processed on your device and never uploaded.
Three simple steps
Get from file to finished video resize result in seconds.
Upload a video
Drop in an MP4, WebM or MOV file to get started.
Pick a target height
Select 1080p, 720p, 480p or 360p — the width adjusts automatically.
Resize & download
Re-encode locally and download your scaled MP4.
Why you'll love it
- Hit strict upload size limits by dropping to a lower resolution.
- Aspect ratio is locked so your video never looks stretched.
- Even-width scaling avoids common x264 encoding errors.
- Ideal for saving storage and speeding up sharing.
Supported formats
Input
Output
Frequently asked questions
Yes. You choose the target height and the width is calculated automatically to keep the original proportions.
1080p (Full HD), 720p (HD), 480p (SD) and 360p — covering everything from quality archives to tiny shareables.
The presets are aimed at downscaling, which is where quality is preserved. Upscaling can't add detail that isn't in the source.
Entirely in your browser through the FFmpeg WebAssembly engine — nothing is sent to a server.
Suggested tools
Pair this with another tool to finish the job.
Ready to use Video Resize?
Free, private and watermark-free. No signup required — just upload and go.