How to Convert MP4 to WebM on Windows, Mac, and Online?

Launch the program. Then click on the Converter button on the main interface. Import your target MP4 videos by clicking the + Add Files or Add Video Folder icon at the top. Or you can directly drag and drop all videos into the program.

And then, unfold the output format menu by hitting the output format image icon. Click on the Web button. Choose WebM under the tab as the output format. Also, with a range of presets for platforms and devices, you'll be enabled to convert the video to YouTube, Vimeo, or phone, TV, etc.

Tips: You can go further with options in the Parameter settings section to adjust video/audio codec, audio sample rate, video frame rate, and video resolution, etc., to your likings.

Click the bottom triangle button to set an output folder or leave it as default. Finally, hit Run to start the conversion.

This is the free version of WonderFox HD Video Converter Factory Pro. It comes with the same powerful conversion features and also has a practical online video downloader. With WonderFox Free HD Video Converter Factory, you can also convert MP4 to WebM with preferred settings. No limit on file sizes and conversion times. Follow these steps to start conversion:

Step 1. Download and install Download and install Free HD Video Converter Factory on your computer.

Step 2. Run the software and open Converter. Straightly drag your videos into the program.

Step 3. Open the format library and head to ‘Web’ > ‘WebM’ (or 'HTML5'). Or you can go to ‘Video’ > ‘VP9’.

Step 4. This step is optional. If you have specific needs on output settings, open Parameter settings to adjust the encoder, resolution, frame rate, bitrate, aspect ratio, channel, etc.

Step 5. Finally, specify an output folder and click Run to start converting MP4 to WebM on Windows for free.

HandBrake is also a popular choice when it comes to the best free MP4 to WebM converter options. While this open-source media transcoder supports a wide range of video types, it offers only three output container formats: WebM, MP4, and MKV. However, it has an array of built-in presets for webs and devices. Learn how to convert a video to WebM using HandBrake now:

Step 1. Download, install, and run HandBrake on your device. It can work on Windows, Mac, and Linux.

Step 2. Click on the File button to import your source .mp4 or drag and drop the target file into the interface.

Step 3. Navigate to Summary > Format and select WebM as the output format.

Step 4. Switch to other tabs to tweak the video encoder, frame rate, quality, dimensions, filters, audio codec, and other settings based on your needs. (Optional)

Step 5. Hit the Browse button at the bottom to name the export and specify a file path.

Step 6. Click the Start button to begin the conversion.

If you have VLC Player installed on your Mac, congrats, there is no need to download a 3rd-party converters. Other than being a media player, VLC can also serve as a free MP4 to WebM converter. Next, we’ll learn how to convert MP4 to WebM VLC easily and quickly. Let’s get started!

Step 1. Download, install, and run VLC Media Player.

Step 2. Navigate to top menu bar and press Media.

Step 3. Then select Convert/Save.

Step 4. On the pop-up Open Media window, click on the + Add button to import the MP4 file you want to convert.

Step 5. Next, press Convert/Save button.

Step 6. Then in the new window, hit the triangle button near the Profile to expand the drop-down list of output profiles. Select the Video - VP8 + Vorbis (webm) preset as the output format.

Step 7. Click Browse to set a destination folder for the converted WebM video.

Step 8. Finally, hit Start button to start the conversion process.

An easy and high-quality online platform that supports a wide range of file conversions including videos. You can use it to convert MP4 videos to WebM and vice versa.

Simply upload files from your computer, cloud drives, or URLs. Then select WebM as the output format and press ‘Convert’ to start the conversion.

It also allows you to change output video & audio settings and trim, flip, and rotate the video.

A leading browser converter that can also process various files like video, audio, image, e-books, etc. You’re allowed to convert video files up to 1 GB for free.

It shares a similar conversion workflow to FreeConvert. Click ‘Select File’ to load your .mp4 from local drive or cloud services. Set ‘WebM’ as the target format and you can also edit settings if needed. Hit ‘Convert’ to start it.