MP4 to WebM Converter
Convert your MP4 videos to WebM format for optimal web performance. WebM offers excellent compression with the VP9 codec, making it ideal for websites and online streaming. All processing happens in your browser.
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Drag and drop your image below to start converting. All processing happens in your browser — your files stay private.
After selecting a file, you'll be taken to the converter where you can choose your output format and download the result.
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Frequently Asked Questions
Is WebM better than MP4 for web?
WebM often provides better compression than MP4 for the same quality, especially with the VP9 codec. However, MP4 with H.264 has broader browser compatibility. WebM works in all modern browsers.
Which browsers support WebM?
WebM is supported by Chrome, Firefox, Opera, Edge, and Safari (since iOS 14.5 / macOS Big Sur).
Why would I convert MP4 to WebM?
Convert to WebM for faster website loading times, lower bandwidth usage, and modern web standards. WebM is ideal for HTML5 video embedding.
Is my video file uploaded to a server?
No. The conversion happens entirely in your browser. Your video file never leaves your device.
Privacy First
All conversions happen entirely in your browser. Your files are never uploaded to any server. No accounts, no tracking, no data collection. Built by Nexora Creation.