Can I resize an MP4 video?
Yes. MP4 is a common supported format, although codec support can vary by browser.
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Resize Video
Resize video dimensions.
1
Upload
2
Configure
3
Convert
4
Download
Resize video dimensions.
Choose a file to get started
Drag and drop a supported file here, or press Enter to browse your device.
Tool guide
Free Online Video Resizer
Resize videos online by changing their width and height or using common size presets. This browser-first video resizer is useful for changing video dimensions before sharing, posting, or editing.
Steps
How it works
- Upload a video file.
- Choose a preset or enter target dimensions.
- Keep aspect ratio enabled to avoid stretching.
- Click Resize Video and download the output.
Highlights
Key features
- Resize MP4, WebM, MOV, and other supported video files where codecs allow.
- Use common presets such as 1080p, 720p, and 480p.
- Preview the original video before export.
- Create a real downloadable video output.
Use cases
Common uses
- Resize videos for social media uploads.
- Reduce video dimensions before sharing.
- Create smaller preview clips.
Notes
Limitations to know
- Very large videos may take longer to process.
- Some video codecs may not be supported by every browser.
- Processing speed depends on your device.
FAQ
3 answersFrequently asked questions
Will resizing reduce video quality?
Changing dimensions and re-encoding can affect quality. Smaller dimensions usually reduce detail.
Why is video resizing slower than image resizing?
Video processing must handle many frames and often audio, so it needs more memory and CPU time.