Video Tools
Resize Video
Change video dimensions with aspect-ratio controls.
Files stay in your browser. The processing engine downloads only when you start processing for the first time.
Tool guide
How to use Resize Video
Overview
Change video dimensions with aspect-ratio controls. This guide explains a practical way to check the result before you use it.
How to use it
- Open Resize Video and prepare a copy of the input you want to process.
- Select a video file and wait for the browser media engine to load.
- Choose the output format, dimensions, trim range, speed, filter, or other available option, then start processing.
- Preview the output where available and check the opening, ending, orientation, and sound before download.
Example
Process a 10-second test segment first to validate the chosen format and settings before exporting the full video.
Before you use the result
- Video processing runs locally in the browser after the media engine loads.
- Large or long videos can exceed browser memory, and re-encoding can change quality or take time.
FAQ
Questions people ask
What does Resize Video do?
Change video dimensions with aspect-ratio controls.
How do I use Resize Video?
Select a video file and wait for the browser media engine to load. Choose the output format, dimensions, trim range, speed, filter, or other available option, then start processing.
How should I check the result?
Preview the output where available and check the opening, ending, orientation, and sound before download.
Is an account required?
No. NovaKit tools are available for direct use without creating an account.
How is my input handled?
Video processing runs locally in the browser after the media engine loads.
What should I keep in mind?
Large or long videos can exceed browser memory, and re-encoding can change quality or take time.
What is a safe Resize Video example?
Process a 10-second test segment first to validate the chosen format and settings before exporting the full video.
Can I keep a copy of the result?
Where output is generated, use the page’s copy, download, print, or export controls and keep the original input until you have verified the result.
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