Want to Convert WebM to MP4?

Run the downloaded file and follow the on-screen instructions.

Click the Add Media button in the program interface, select Add video, and add a WebM file or any other format that you want to transform into MP4. When you convert WebM to MP4 online you can’t convert more than one file at a time. Movavi Video Converter has the option of making batch conversions.

You can first edit your videos in the app’s editing tool. Access it via the Edit button in the right part of the file info section.

Adjust the sound volume in the videos or even lessen background noise in the Audio tab. Set the brightness, contrast, saturation, and many other parameters in the Adjustments tab. Apply different filters to your videos in the Effects tab. Insert subtitles in Subtitles or add a particular watermark in the respective tab. Trim details you don’t want, rotate your footage, or cut its edges in the tabs Trim and Crop.

Expand the Video tab at the bottom of the program window and click MP4. You’ll see a list of presets for MP4 videos – choose the one that suits you best. To ensure the file is compatible with your mobile device, open the Devices tab and choose the preset for your device.

You can also use the converter to shrink large files quickly. Click the size value indicated in the file description. A dialog box will open, in which you can choose the size, quality, and bitrate values. Click the Convert sample button once you’re finished to check how the resulting file will look like.

When you have set all the parameters, click the button with the Save to button and choose the directory for your output files. You can use the default folder or select another. Finally, click Convert to transfer your file(s) to MP4 or any other format you like.

First, if you haven’t already, you’ll need to download VLC. You can do this by going to the VLC official website. Tap the down arrow next to the orange Download VLC button to choose the appropriate version for your operating system (e.g., Windows, macOS, Linux, etc.). Follow the download and installation instructions, and you’ll be all set. Open VLC Media Player and proceed to step 2.

Go to VLC's download page

In the top left corner of the VLC media player, click the Media tab or use the hotkey code CTRL + R to open the menu directly. From the Media menu, select Convert/Save. This will open a new Open Media window.

You’ll find the Add button to the right in the Open Media window. Click on this button, browse for the file you want to use VLC to convert WebM to MP4. Click Open.

At the bottom of the Open Media window, you’ll see the Convert/Save button. Click this to start the process to convert WebM to MP4 with VLC.

Click the dropdown menu next to the Profile section in the center of the window and choose Video – H.264 + MP3 (MP4).

If you want to convert your WebM to other audio codecs, you can repeat the entire process leading up to this point and simply change the output in the Profile section.

Hit the Browse button and enter a file name and destination on your computer for your newly converted MP4 file. Then click the Save button.

Click the Start button, and the conversion process will begin. This may take a few moments, but when the conversion is complete, you’ll have a new MP4 file saved and ready to play on your computer.