MP4 to WebM
Convert MP4 videos to WebM – free in browser
🔒 Your files are never uploaded – everything happens locally in your browser.
Drag MP4 files here or click to select
multiple files at once
Why MP4 → WebM?
WebM is an open video format optimized for the web. It offers good compression and is supported by all modern browsers. Directly in the browser, no upload.
Frequently Asked Questions
What is WebM?
WebM is an open video format developed specifically for the web. It is natively supported by all modern browsers and offers efficient compression.
Are my files safe?
Yes, 100%. Your video files are never uploaded to a server. The conversion happens entirely locally in your browser.
Is the conversion free?
Yes, wandlio.de is completely free. No registration, no limits, no ads.