Download Movavi Video Converter and double-click the installation file. The installation will be done in a few minutes.

To compress a WebM video, upload it to the program. Launch the converter and click the Add Media button. Select the Add Video item and choose the files you need to compress in the window that opens. Hit Open.

WebM files are already one of the smallest formats, so you don’t need to change the format. Go to the Video tab and find the WebM group of presets. Click on it to display the list of options. First, to compress WebM files, you can lower the resolution. For example, if you choose the 480p or 720p option, the resulting file will require less space.

You can also compress WebM by changing the file size manually. Click the button that represents the file size and quality (under the output file name). By moving the File size slider, determine the new file size. The bitrate will also change.

Now, let’s get this finished. Specify where to save the output files by clicking the Folder button. And the last step: hit Convert. Your files will be ready shortly, and then you can upload them wherever you wish. Your audience with slow Internet connections will be grateful!