Resize Video
Resize a video to a target width while preserving its aspect ratio and exporting a web-friendly MP4.
About Resize Video
Resize a video to a target width while preserving its aspect ratio and exporting a web-friendly MP4. The video is scaled to the requested width while preserving its aspect ratio, then encoded as H.264/AAC MP4.
How to use Resize Video
Upload a video and select the target width. ToolFlow preserves the aspect ratio, scales the height automatically and exports an H.264/AAC MP4 at the new resolution.
When Resize Video is useful
- Prepare video for a player, browser or publishing platform that works better with the output from Resize Video.
- Create a smaller or more convenient derivative while keeping the original media untouched.
- Handle a one-off media task without opening a desktop video editor.
Practical tips
- Keep the original media file until you have checked the converted result.
- Re-encoding can change quality and file size; avoid repeated conversions between lossy formats.
- Large or long media files take more server time, so use the shortest source that meets your needs.
Resize Video FAQ
Does Resize Video change my original input?
No. ToolFlow works on a temporary upload or submitted value and returns a separate result. Your local original is not overwritten.
Do I need to install software to use Resize Video?
No browser extension or desktop application is required. Some file tools depend on server modules such as FFmpeg, GD, Poppler or LibreOffice being enabled by the site operator.
Privacidad y gestión de archivos
Uploaded files are processed in temporary server storage. ToolFlow attempts to delete temporary source and output files after processing or delivery. Do not upload material you are not authorized to process. See the Política de privacidad for details.