Convert MP4 to WebM Online
Optimize your videos for modern browsers. Convert MP4 to WebM for superior compression and web performance.
Upload MP4 Video
MP4 files up to 500MB
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Drag and drop your files here, or click to browse
Supported formats: video/mp4
Max file size: 500 MB
Why Convert MP4 to WebM?
WebM is designed specifically for the web. It offers high quality video with significantly smaller file sizes, perfect for websites and online sharing.
HTML5 Ready
Natively supported by Chrome, Firefox, Edge, and Opera without any plugins.
Better Compression
WebM often achieves better quality-to-size ratios than MP4, saving bandwidth for your users.
Fast Loads
Smaller files mean faster page load times and better SEO for your website.
Frequently Asked Questions
What is WebM used for?
WebM is an open video format optimized for the web. It provides high-quality video with smaller file sizes than MP4, making it perfect for website backgrounds, HTML5 video players, and streaming.
Does WebM support transparency?
Yes! Unlike MP4, WebM (using the VP8/VP9 codec) supports alpha channels, meaning you can have videos with transparent backgrounds.
How long does conversion take?
WebM conversion is generally fast, but might take slightly longer than MP4 depending on the quality settings. Most files are processed in under a minute.