Convert WebM to MP4 Online
Watch web videos on your iPhone. Convert WebM files to MP4 to ensure they work on iOS, Safari, and standard video editors.
WEBM → MP4
Why Convert WebM to MP4?
WebM is optimized for browsers but has poor support on Apple devices. It often fails to save to the Camera Roll or play in QuickTime.
Converting to MP4 enables full support on iOS, macOS, and allows you to edit the footage in standard software.
How to Convert WebM to MP4
- Upload the WebM file.
- Our tool re-encodes it to MP4.
- Download and save to your device.
MiConvert WEBM 到 MP4 的主要功能
- Convert WEBM videos to MP4 format online
- Support for common video resolutions
- Fast cloud-based video processing
- No software download required
- Works on desktop and mobile browsers
Frequently Asked Questions
Can I save WebM to my iPhone Photos?
Not directly. You must convert it to MP4 first, then you can save it to the Photos app.
What happens to transparency?
Standard MP4 (H.264) does not support transparency. If your WebM had a transparent background, it will become black in the MP4.
Is it free?
Yes, you can convert WebM files for free without registration.