How to convert WEBM to MP4
- Choose a WEBM file up to 100 MB.
- Start the conversion and wait while Rosconvert prepares the MP4 file.
- Download the result and check it in the application where you plan to use it.
All converters
WEBM β MP4
Convert WEBM to MP4 online
Convert WEBM files to MP4 directly in your browser. The finished file is ready to download after processing.
What to check when converting WEBM β MP4
Video files can contain different containers, codecs, resolutions and audio tracks, so converting WEBM to MP4 usually takes longer than processing images or documents.
After downloading the result, check video, audio, synchronisation and playback in the target application. Final file size depends heavily on the source video.
Frequently asked questions
Do I need to install software?
No. The conversion runs online in your browser and does not require a desktop application.
What is the maximum file size?
You can upload one source file up to 100 MB on this page.
Should I keep the original file?
Yes. Keep the source file until you have checked that the converted result is suitable for your use.