A video readable by the local FFmpeg engine
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Resize Video
Reduce video dimensions to practical web and sharing sizes.
Loading local tool…
No uploadsYour files stay on this device.
Local engineYour browser does the work.
Auto cleanupTemporary memory is released.
About this tool
Use resize video without uploading files
Change video dimensions locally for smaller exports, platform requirements, or consistent presentation sizes.
Processing takes place in your browser tab. Temporary working data is released when you leave or reload the page.
Three steps
- Choose a source video and read its current dimensions.
- Select a preset or enter the target size.
- Resize the video and inspect the exported aspect ratio.
Useful for
Common resize video tasks
- Reducing large phone videos
- Preparing web embeds
- Standardizing clip dimensions
Practical details
What to know before you start
One resized video
- Preserving aspect ratio avoids stretched subjects.
- Upscaling increases dimensions but cannot create missing detail.
- Encoding time grows with duration and output resolution.