WebM is an open video format designed for the web, common for screen recordings and browser downloads. Apple devices and many editors handle it poorly. MP4 is the most compatible video format. It plays on phones, TVs, browsers and every editing app.
Converting to MP4 makes your video play on every phone, TV, browser and social network. The conversion happens entirely in your browser, so your files are never uploaded and there’s no size limit beyond your device’s memory.
How to convert WebM to MP4
- Choose your WebM file.
- Optionally pick a smaller video size, and set a start and end time if you only need part of it.
- Press Convert and download the MP4.
Questions
Is WebM to MP4 conversion free?
Yes, completely free with no limits, sign-up or watermark.
Are my files uploaded?
No. Conversion runs on your own device, so your files stay private.