How to convert MP4 to WEBM
- Choose a MP4 file up to 100 MB.
- Start the conversion and wait while Rosconvert prepares the WEBM file.
- Download the result and check it in the application where you plan to use it.
All converters
MP4 β WEBM
Convert MP4 to WEBM online
Convert MP4 files to WEBM directly in your browser. The finished file is ready to download after processing.
What to check when converting MP4 β WEBM
Video files can contain different containers, codecs, resolutions and audio tracks, so converting MP4 to WEBM 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.