Convert MP4 to WebM Online Free
Fast, secure, and high-quality in your browser. No sign-up required. Your files never leave your device.
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About WebM
WebM is an open, royalty-free video format designed for the web. Developed by Google, WebM provides high-quality video compression and is optimized for fast streaming and playback in modern browsers. It uses the VP8/VP9 video codecs and the Opus audio codec.
WebM is supported by all major browsers and is ideal for web video, especially when you want efficient compression and smooth playback.
Fun fact: WebM was introduced in 2010 as a free alternative to proprietary video formats and is now widely used for HTML5 video.
Why Convert MP4 to WebM?
Converting MP4 to WebM makes your videos more web-friendly and ensures compatibility with modern browsers and platforms. WebM is optimized for streaming and often delivers efficient compression for websites and apps.
If you want fast-loading, high-quality video for your website or app, WebM is a great choice.
How to Convert MP4 to WebM
Select your MP4 files, open Settings to adjust quality if needed, and click Convert. Your WebM download will be ready in seconds.
Frequently Asked Questions
Is this MP4 to WebM converter free?
Yes, our MP4 to WebM converter is completely free to use with no watermarks.
Are my MP4 & WebM files safe?
Yes. Files are processed entirely in your browser. They are not uploaded or stored on our servers.
Does this work on mobile?
Yes, you can convert MP4 to WebM directly from iPhone, Android, or desktop browsers.