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Drop your MP4 file here or click to browse
Maximum file size: 25MB
Uploading your file...
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Converting... This may take a moment.
Conversion complete!
Options
webm
WebM
Files deleted after 1 hour
How to Convert MP4 to WebM
1
Upload MP4
Drag and drop your .mp4 file or click to browse your computer.
2
Click Convert
Adjust options if needed and click the convert button. We handle the rest.
3
Download WebM
Your converted .webm file is ready. Download it instantly.
About the MP4 Format
Most widely used video container format supporting multiple codecs and streaming.
Extension
.mp4
MIME Type
video/mp4
Category
video
Full Name
MP4
About the WebM Format
Open media format designed for royalty-free use in HTML5 video.
Extension
.webm
MIME Type
video/webm
Category
video
Full Name
WebM
Frequently Asked Questions - MegaConvert
Simply upload your .mp4 file using the upload area above, choose your conversion settings, and click Convert. Your .webm file will be ready to download in seconds.
Yes! MegaConvert offers free MP4 to WebM conversions for files under 25MB.
Most conversions complete in under 30 seconds. Larger files may take longer.
Absolutely. All files are processed in isolated environments and automatically deleted after conversion.
Free users can convert files up to 25MB. Paid plans support up to 2GB per file.