What is a WebM file? How to open WebM files on Windows? How to convert a WebM file to MP4? In this article, you’ll find answers to these questions and learn how to play WebM files in three different ways. Read on.

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Michelle | Jan 5, 2023

What is a WebM File?

A WebM file is a video file with the .webm extension based on a profile of Matroska (MKV). WebM files usually use VP8 or VP9 to compress video streams and Vobis to compress audio streams. Now, it is updated to support Opus audio and the new AV1 video codec.

As a media file format designed for the web, WebM videos are frequently used on HTML5 websites. Therefore, it is supported by most web browsers, including Google Chrome, Mozilla Firefox, Microsoft Edge, and Opera. In these browsers, you can easily find a WebM video on websites like YouTube.

But how to open a downloaded WebM video? Don’t worry. In the following, you’ll learn three free methods to play WebM files on PC, mobile, and more devices with ease.

All-in-one WebM Viewer, Editor, Converter

Free HD Video Converter Factory provides a one-stop solution to play, edit, and convert WebM files on PC Windows. Simply drop your WebM file into the software and start watching without hassle. Moreover, it takes three easy steps to (edit and) convert WebM to MP4, MOV, AVI, MP3, and other formats for smooth playback on all devices. Get the program completely for free now.

How to Play WebM Files?



Method 1. Open WebM File on Chrome or Other Browser

As mentioned earlier, WebM is supported by many web browsers, so you can directly open WebM files on a browser without third-party software. Here, we will take Chrome browser as an example. The steps to play a WebM file on Chrome are easy as follows.


1. Open the Google Chrome browser.

2. Drag your WebM video onto the browser and it will start to play in a new window.

Alternatively, you can right-click on the WebM video and select “Open With.” Then scroll down to find the Chrome option, choose Chrome as the WebM player and start watching your WebM video.

Besides Chrome, Firefox, Edge, and Opera all support playing WebM videos. Simply open the browser and throw your WebM at it, and it should start playing at once. However, Safari and Internet Explorer without the WebM for IE9 plug-in cannot open WebM files. As such, you can try using a WebM viewer.


Method 2. Try a Free WebM player

When your Chrome WebM not playing or you want more control over the video playback, you can use a regular media player as an alternative. For example, in Windows 10, you can play WebM in Windows Media Player with the correct codec installed. But if you don’t want to install any codec, you can try a third-party WebM media player.

VLC Media Player is the most recommended tool to play WebM format videos. It is a free, open-source, and multiplatform video player that can readily play WebMs on PC, Mac, Android, iPhone, and Linux. Follow the steps to learn how to play WebM files on Windows 10 with VLC Media Player.

Tips. The steps to open WebM files in VLC are generally the same on other operating systems.


How to Play WebM in VLC on PC Windows?

Step 1. Install the latest VLC Media Player to your Windows PC at https://www.videolan.org/vlc/#download.

Step 2. Open the VLC app.

Step 3. Click Media > Open File, and choose the WebM video you want to watch. You can also drag a WebM video into the player window to start playing directly.

Tips. In VLC, you can fast forward and rewind the video, equalize audio, sharpen video quality, embed a subtitle file, and do more.

Note. WebM files encoded with the new AV1 codec may not work well with VLC and cannot be opened with Windows Media Player. You need to open such a file in a browser or convert the file to MP4 for smooth wviewing.


Apart from VLC, there are other WebM video players to try. Free HD Video Converter Factory is one option. It can be used as a free WebM files player to play WebM files with ease. In addition to opening WebM files, it can edit WebM and convert WebM files. See details in the next part.


Method 3. Convert WebM to MP4 to Play on All Devices and Software

If you want to play WebM on TV, Android, iPhone, or other devices, you can also convert WebM to MP4 - the universal video format – for smooth video playback. All we need is a simple video converter like WonderFox Free HD Video Converter Factory. It is an all-format video converter with perfect support for WebM videos. In a few clicks, it can convert WebM files to MP4 and other mainstream formats with no fuss. With this program, you can also edit and play WebM videos directly.

Just free download free download the software and see how to play, edit and convert WebM videos with it.

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Step 1. Open Free HD Video Converter Factory on your PC and select the “Converter” module.

Step 2. Click the center “+” button to import WebM videos or drop your files here straightforwardly.

Step 3. Play, edit, or convert your WebM video.

How to Watch a WebM File?

• Click the thumbnail to play the WebM video in its built-in video player.

How to Edit a WebM File?

• Below the video task, there is a row of editing tools. You can use them to cut, crop, rotate, apply effects, and add watermarks to your video. Pick one and start editing your WebM video as you see fit. If you have added more than one WebM video, you can use the Merge function at the top of the program to combine these files into one.

How to Convert a WebM File?

• On the right side of the program interface, hit on the format image to open the output format list. Next, head to the “Video” category and select “MP4” or any other format you prefer as the output format.

(Optional) You can go further to modify the parameters. Just go to the “Parameter settings” and configure the options there. For instance, you can change the video codec, scale the resolution, alter the bitrate, resize the dimension, adjust the volume, and more.

Step 4. Finally, set an output folder at the bottom of the program and click “Run” to start the conversion process. After conversion, you should be able to play the converted file on all your devices without a problem.

Achieve More with Free HD Video Converter

1. Convert video/audio to 500+ hot profiles;

2. Save movies and music from YouTube;

3. Compress videos while keeping high quality;

4. Trim, merge, crop, and add special effects to videos.

Wrapping up

These are the three efficient ways to play WebM files. You can choose your preferred solution to start enjoying your WebM video right now. That’s all. We hope you’ll find this article helpful. Thanks for reading. Have a great day!

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