WEBM to MP4 Converter - Free, Universal Compatibility
WEBM is built for web streaming, but many video editors, phones, and older devices cannot open it. Converting to MP4 makes your video editable and playable everywhere.
How to use WEBM → MP4
- 1Drag and drop your file, or click to select it.
- 2Click Convert to run WEBM → MP4.
- 3Download the result - your file is deleted automatically within 24 hours.
Drag & drop a file here, or click to browse
Your file is only processed temporarily for the conversion and is automatically deleted within 24 hours.
Frequently Asked Questions
Does this re-encode my video?
Yes - WEBM uses VP8/VP9 video and Opus/Vorbis audio, which are not compatible with the MP4 container, so this converts them to H.264 video and AAC audio.
Will the file size change?
It typically changes somewhat, since re-encoding uses a different codec - quality is kept high, but exact size depends on the source video.