Convert WebM-formatted videos to MP4 with VLC, Handbrake and online conversion tools

Do you want to convert WebM files to MP4? Although this open source format is commonly found on HTML5 sites like YouTube, some video players do not support WebM videos. Fortunately, converting videos with the .webm extension to MP4 is simple and doesn’t take much time. If you want to create an MP4 video with the same resolution and size as the original file, you can use any video converter, including VLC Media Player, or an online tool that can be used on any platform. If you’re looking for a simple way to reduce the quality and size of your videos, try HandBrake on a Windows or Mac computer. This is an article with 5 simple ways to help you convert WebM video to MP4.

Table of Contents

Use Veed.io (on any platform)

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Go to https://www.veed.io/convert/webm-to-mp4 using a browser. This is one of the online conversion tools that help you easily convert WebM files to MP4. You can use this tool on any platform, including your computer, Android device, iPhone or iPad.

This is a great solution if you want to quickly convert WebM files to MP4 without changing the result. You can even use this tool on Android, iPhone or iPad.
The free Veed.io service plan allows users to convert videos up to 250MB in size. The maximum output time is 10 minutes. In addition, the video also has a blurred icon. So if you convert WebM to MP4 online using Veed.io, you need to remove the watermark icon manually. Or, you can have a paid subscription to Veed.io to convert videos online without the watermark.
Although Veed.io allows you to convert larger files than most other online tools, it may not be the best choice if the WebM file is large – the file upload Large volumes can take a long time. If the WebM file is very large, you are better off using an online tool like VLC or Handbrake.

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Click Upload Your File . This opens the file browser window.

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Select file. Select the “.webm” file extension, and then select Open or Upload when prompted. This is how to upload a WebM file to Veed.io.

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Click Convert File . This is the big oval button at the bottom of the page. You will see a preview after the file is converted.

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Click Download MP4 (Download MP4). Files are instantly downloaded to your computer, phone or tablet’s default library.

You may have to tap Save to save the file.

Using Handbrake (on Windows and Mac)

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Open Handbrake on your Windows or Mac computer. Handbrake is an open source video converter that makes it easy to convert WebM files to MP4. If you do not have Handbrake, you can download the program from https://handbrake.fr.

Handbrake has many built-in presets that make it easy to change the quality and ratio of your MP4 files. Although you can’t really improve the quality of low-quality videos with Handbrake, you can use the program to create smaller files that you can easily share.

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Drag and drop the WebM file onto the window. Or, you can click File to select a file using your Windows or Mac computer’s file browsing window.

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Select MP4 from the “Format” menu. If this option is not already selected, you need to choose it now. This is to ensure that you can create MP4 files with the right encoding (H.264).

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Select the available installer from the menu. To make sure you choose the right set of best settings for your video, first look at the resolution and FPS (frames per second) next to “Source” at the top of the window. The higher the quality, the larger the file size.

If you don’t want to change the quality, simply choose a setting with the same (or close to) resolution and fps you see in the source.
- If you want to convert 4K WebM files (4096×2034) to 4K, select the Vimeo YouTube HQ 2160p60 4K installer in the Web menu.
To reduce the size of high-quality video, it is recommended to choose a lower resolution. ^{[1] XResearch Source}
- For example, if you want to reduce the size of HD video with 1080p resolution and 60 frames per second without much loss of quality, you can choose one of the 720p30 presets.
- The General installer is designed to be used on any device, while the Web installer is used for sharing videos on the internet.
For more details about all HandBrake presets, you can visit https://handbrake.fr/docs/en/latest/technical/official-presets.html.

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Select the save folder and name the file. Follow these steps to create an MP4 file:

Click Browse . You’ll see this button next to “File” on Mac, and next to “Save As” on Windows computers. ^{[2] XResearch Source}
Select the folder to save the file, and enter a new file name if necessary.
Click Save .
You will see the new file ending in .m4v instead of .m4a . However, don’t worry, MP4 and M4V formats are the same. ^{[3] XResearch Source} This is an extension that makes the file compatible with QuickTime.
If you want to play videos with QuickTime Player on Mac, you need to keep the .m4v extension. Or, you would remove the .m4v from the filename (next to “File” or “Save as”) and replace it with .mp4 .

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Click Start Encode on a Windows computer or Start on a Mac. You will see this option at the top of the window. The file is instantly converted to MP4 format.

If you process large videos, this will take longer. With smaller videos, this can take anywhere from a few seconds to a few minutes.
When the conversion is complete, the MP4 file will be displayed in the folder you selected.

Using VLC Media Player (on Windows)

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Open VLC Media Player on your Windows computer. VLC Media Player is a free video player that supports playing any type of audio or video file. VLC also makes it easy to convert WebM files to other formats, including MP4.

If you don’t have VLC Media Player, you can download it from https://www.videpan.org.
If you want to reduce the quality of the output video, you’re better off using Handbrake. You can use VLC to change the quality, but Handbrake’s simple presets help you skip setting up all the customizations manually – which means you’ll avoid creating files low quality (or blurred) MP4 files.

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Click the Media menu and choose Convert/Save… . The Media menu is in the upper left corner of VLC Media Player. ^{[4] XResearch Sources}

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Click the Add button. You’ll see this option near the top of the window.

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Select the WEBM file and click Open . This is to add files to the upper part of the window.

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Click the Convert/Save button. You will see this option at the bottom of the window.

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Select the MP4 profile. Click the “Profile” menu, then select the Video profile – H.264 + MP3 (MP4) .

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Click the button with the wrench icon. You’ll see this option next to the “Profile” menu.

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Select video encoding settings. To make sure the output video has the same settings as the original video, you should choose the following options:

Click the Video codec (Video Encoder) tab.
Select H-264 in the “Codecs” menu.
Select Same as source from the “Frame Rate” menu.
Click the Respution tab and make sure all selections are Auto .
- You can reduce the resolution if you like. However, increasing the resolution higher than the original video resolution will not produce a good quality file.
- Downscaling a low-resolution video will result in a poor-quality file.
Click the Audio codec tab.
Check the boxes next to Audio and Keep original audio track .
Click Save .

Using VLC Media Player (on Mac)

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Open VLC Media Player on Mac. VLC Media Player is a free program that supports playing any audio or video file.

VLC also makes it easy to convert WebM files to other formats, including MP4. If you don’t have VLC Media Player, you can download it from https://www.videpan.org.

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Click the File menu and choose Convert/Save… . The File menu is in the upper left corner of the screen.

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Open the file WebM. Proceed as follows:

Click the Open media… button.
Select the WebM file.
Click Open .

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Select the MP4 profile. If this option is not selected by default, you will click the “Choose Profile” menu and choose Video – H.264 + MP3 (MP4) .

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Click the Customize… button. You’ll see this option to the right of the selected profile.

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Select H.264 video encoding. This is the operation to choose the file conversion method for VLC. Proceed as follows:

Click the Video codec (Video Encoder) tab.
Select H.264 from the “Codecs” menu. Maybe this option is already selected, otherwise you would choose from the menu.
It is best to keep the default selection for the rest of the choices so that VLC uses the original ratio and resolution for the output video.
- You can reduce the resolution if you want, but increasing the parameter too much from the original resolution will not produce a file with better quality.
- Upscaling a low-resolution video will result in a worse file quality.

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Keep the original sound. Here’s how to make sure the converted video still has sound:

Click the Audio codec tab.
Check the boxes next to “Audio” and “Keep original audio track”.
Leave the default settings for the rest of the options.

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Click Apply . This saves your changes and returns you to the Convert & Stream window.

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Choose where to save the file. Now you need to choose a folder to save the new file on your Mac. Proceed as follows:

Click Save as File under “Choose Destination”.
Click the Browse… button displayed on the screen.
Find the folder where you want to save the MP4 file.
Enter a new name for the file in the “Save As” field above. You only need to enter a name for the file (such as movie ) and do not enter the extension “.mp4”
Click Save .

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Click Save to convert the file. This is the button at the bottom of the window. This will convert the WebM file to MP4 format. This process may take a few minutes if the file is large, but it will take less time if the file is smaller.

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Open the folder with the new file. You will see the new file ending in .m4v instead of .m4a . Don’t worry, though – the MP4 and M4V tails are the same. ^{[5] XResearch Source} File with extension compatible with Quick Time.

If you want to play videos in QuickTime Player (the default audio and video player on Mac), you need to keep the .m4v extension.
If you don’t care about QuickTime, you can easily rename the file to create a .mp4 extension and can view the file in any video player that supports the MP4 format.

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Rename the file (optional). If you want to add the .m4v extension to your file and don’t mind watching the video in QuickTime Player, you can easily follow these steps:

Click the file again to select it, and press Return . ^{[6] XResearch Sources}
Replace .m4v with .mp4 . For example, if the file was named movie.m4v , you would change it to movie.mp4 .
Press Return .

Use Online Convert (on any platform)

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Go to https://video.online-convert.com/convert-to-mp4 . Online Convert is a free web format tool that allows you to convert various files (including WEBM) into MP4 format.

This is a useful tool to help you quickly convert small WebM files to MP4 without changing the output video. If you want to process videos larger than 100MB, you need to try another method. Also, if you want to convert more than 2 videos to MP4 at the same time, upgrade to Premium plan or try another online converter.

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Click Choose File . It’s the white button on the green box.

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Select the WebM file. Find and select the file ending in “.webm”, and select Open or Upload when prompted.

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Click START . It’s the green button below the filename. The conversion process begins immediately. Once the conversion is complete, you will see the option to download the MP4 file.

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Save the downloaded file to your computer, phone or tablet. If the download doesn’t start automatically, you’ll click or tap Download . When asked, you need to choose where to save the file on your computer, Android, iPhone or iPad, and click or tap Save to save the new MP4 file.

Advice

You can find countless online tools and applications that help convert video files to MP4 format. If you don’t like the options presented in this article, search the internet for “webm to MP4 converter” on the internet to find another option.

Steps