Best WebM to MP4 Converter Free Online & Desktop | Wondershare Filmora

For video creators, ensuring universal compatibility is key. While WebM is great for web streaming, MP4 remains the gold standard for seamless playback across all devices, social media, and platforms. This is why knowing how to convert WebM file to MP4 is an essential skill. While many simple converters exist, they often fall short on quality and features. This article introduces you to the best WebM to MP4 converters, but we want to show you a better way. Wondershare Filmora is not just a free converter—it’s an all-in-one AI video editor that makes converting and enhancing your videos easy. From simply changing a WebM to MP4 to adding stunning effects, Filmora is your comprehensive solution.

Part 1. Best WebM to MP4 Converters Comparison Chart

Part 2. The 10 Best WebM to MP4 Converters

Changing the format of a video file is never a complicated process, regardless of the software or the web-based application you are using. However, the duration, speed, and quality of the conversion process depend on the converter you've selected for this task. Here are the ten best WebM to MP4 converters that make the file conversion process swift and smooth.

1. UniConverter

This is a powerful file converter that is available both online and on desktop computers. You can choose from more than a thousand conversion formats, which enables you to convert your video files into virtually any format you want.

So, in order to convert a WebM video to MP4 you just need to add one or more WebM files to UniConverter and then set MP4 as the output file format. The amount of time you will have to wait for the conversion process to be completed varies on the desktop and online versions of UniConverter, and you can only convert two WebM files to MP4 at the same time with the online version of this file converter.

2. VLC

Even though VLC is primarily a media player, you can still use it to convert WebM videos to MP4. Head over to the Media menu after you launch VLC and select the Convert/Save option or use the CTRL+R keyboard shortcut to bring up the Open Media window.

Afterward, you should click on the Add button and proceed to import the WebM file into the media player, and then click on the Browse button in order to specify the location on your hard drive where the converted file is going to be saved. When done, you should click on the Convert/Save button to initiate the file conversion process.

3. Any Video Converter

As its name suggests, you can convert any video file with this software regardless of the format in which it is saved. Converting WebM files to MP4 with Any Video Converter is a simple three-step process that can be completed in just a few moments.

To import the WebM video files into Any Video Converter you must click on the Add Video button and then set MP4 as the output format. The software also allows you to adjust the Bit Rate, audio, and video codec settings, so once you are done fine-tuning these settings you should click on the Convert button. After the conversion process is completed, your files will be accessible from the Output Folder.

4. Online Converter

This online file conversion platform enables you to convert a broad range of documents for free. It also supports nearly all commonly used video file formats, including the WebM format, which makes it a perfect choice if you want to convert WebM videos to MP4.

In order to convert a WebM file with Online Converter you just need to upload it to the platform either from an online source or from a local hard drive. Optionally you can set the frame size or cut a video clip before clicking on the Convert button. Uploading a WebM video file can be time-consuming, especially if your file is larger than a few hundred MB.

5. Convertio

Changing the format of an image, audio and files or presentations is an effortless process that can be completed in just a few clicks. Convertio lets you upload WebM videos from a local hard drive, a URL or cloud storage platforms like Dropbox and Google Drive.

After the upload is completed you just have to change the output format to MP4 and click on the Convert button. The size of the files you can convert with the free version of the platform cannot exceed 100MB and you must opt for one of the available subscription models if you want to convert video files that exceed this limit. What's more the number of concurrent conversions you can make depends on the subscription model you select.

6. Zamzar

The fact that 480 million files have been converted with Zamzar since 2006, shows you just how popular this file conversion platform really is. Converting a video with this platform requires you to go through a simple three-step process, so you just have to upload a WebM video file, select the output format and click on the Convert Now button.

You cannot convert files larger than 150MB with the free version of Zamzar. Moreover, this file conversion platform doesn't allow its users to convert videos that exceed 2GB limit even if they purchase the Business subscription plan. In addition, the maximum online storage capacity you will have at your disposal varies from one subscription plan to another.

7. CloudConvert

With the support for over 200 file formats, CloudConvert is easily one of the best file conversion platforms on the Internet. That is why it is hardly a surprise that converting a WebM video file to MP4 requires a minimum amount of effort. However, the platform also enables you to fine-tune the conversion settings by choosing video and audio codecs, setting the constant frame rate or selecting the resolution of the output video.

Trimming the WebM videos is yet another option you will have at your disposal if you choose to convert your files with CloudConvert. In case you're planning on using this file conversion platform on a regular basis, you can choose how many conversion minutes you're going to have every month.

8. Video2Edit

Video2Edit offers a quick way to convert a WebM video to MP4, since you just have to upload a file, either from Google Drive, Dropbox or your hard drive and click on the Start button. Optionally, you can adjust the frame rate, choose a video codec or select a new resolution for the video you're converting. What's more, the Video2Edit platform lets you disable a video's audio track or change the audio codec.

Creating a profile on this file conversion platform will enable you to convert WebM video files that are smaller than 400MB. Purchasing the premium version of Video2Edit will enable you to convert WebM files that don't exceed a 1GB size limit.

9. Onlineconvertforfree

You don't need any previous experience with the file conversion process to convert a WebM video to MP4 with the online file conversion platform. Simply upload a file from your computer or from an online source, choose MP4 as the output file format and then download your file after the conversion.

The platform offers batch conversion options, which can be quite useful if you are looking to convert multiple video files quickly. It is worth noting that converting a video larger than 500MB with this platform isn't possible, regardless of the subscription model you choose. The number of daily conversions, however, is not limited.

10. Aconvert

This is a simple online file conversion tool that lets you convert WebM videos that are stored locally on your computer or on the cloud. You just have to select the source from which you want to import the video, select the output format and decide if you want to change the video's frame rate, aspect ratio or size.

When done, simply click on the Convert Now button and then after the conversion process is completed, proceed to download your video to your computer. The only downside is that you cannot convert WebM video files that are larger than 200MB with Aconvert.

Part 2. WebM vs MP4: Which Video File Format is Better for You?

The choice between WebM and MP4 largely depends on your specific needs and target audience. Understanding their key differences will help you decide when to convert WebM file to MP4 or vice versa.

WebM is a royalty-free, open-source video format designed specifically for web streaming. It's highly efficient for online delivery and supported natively by modern web browsers like Google Chrome, Mozilla Firefox, and Opera. If your primary goal is to embed videos directly onto web pages for efficient streaming with minimal bandwidth, WebM might be your preferred format. However, its compatibility outside of web browsers is limited, meaning you'll often need a dedicated player or to convert WebM to MP4 for offline viewing or broader sharing.

MP4, on the other hand, is arguably the most widely adopted video file format globally. Its universal compatibility with virtually all operating systems (Windows, macOS, Linux), mobile devices (iOS, Android), smart TVs, and popular media players makes it the go-to choice for content creators aiming for maximum reach. MP4 files are also the standard for uploading to major video hosting platforms like YouTube, Vimeo, and social media sites. While slightly less optimized for web-only streaming than WebM, the sheer versatility of MP4 means that for most users, knowing how to change WebM to MP4 is a crucial skill to ensure their videos can be played anywhere, anytime.

When to Use Which:

• Choose WebM if: Your content is exclusively for web embedding and streaming on modern browsers, prioritizing open-source efficiency.
• Choose MP4 if: You need universal compatibility across devices and platforms, plan to upload to social media, or require broader offline playback. In these cases, a reliable WebM to MP4 converter is essential.

Filmora: The AI-Powered WebM to MP4 Converter & Video Editor

Why settle for a basic converter when you can get an all-in-one solution? Wondershare Filmora not only acts as a fast and free WebM to MP4 converter but also offers a powerful suite of AI-driven editing tools. You can effortlessly import your WebM files, use AI tools like AI Copilot and Text-to-Video to enhance your footage, then export it directly to MP4 in one seamless workflow. This tool aggregation approach means you can go from raw WebM footage to a professionally polished MP4 video without ever leaving a single platform.

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Wondershare Filmora offers a seamless workflow for handling WebM files: you can easily import your WebM footage, apply a wide array of powerful editing features – from basic cuts and transitions to advanced AI-driven tools – and then export your polished video directly into the highly compatible MP4 format. This eliminates the need for multiple tools, streamlining your entire video creation and conversion process. Think of Filmora not just as a WebM video converter, but as a creative powerhouse that ensures your content is always in the perfect format and looks its absolute best.

• Direct Import & Export: Effortlessly import WebM files and export directly to MP4 after any edits, removing the need for a separate conversion step.
• Powerful Editing Suite: Access a full range of editing tools, including AI features (like AI Copilot, Text-to-Video), visual effects, and audio enhancements to transform your WebM content.
• Optimal MP4 Output: Control resolution, bitrate, and codec settings for your MP4 export, ensuring the best quality for your specific platform (YouTube, social media, etc.).
• Cross-Platform Accessibility: Edit and convert your WebM videos on Windows, Mac, and even with Filmora's mobile apps for iOS and Android, offering flexibility on the go.
• Rich Resource Library: Utilize Filmora's vast library of templates, royalty-free music, and stock media to elevate your videos before conversion.

Conclusion

In 2025, converting a video from WebM to MP4 is quick and easy with online converters. However, if you want more than just conversion—like editing, trimming, enhancing, and exporting directly to MP4—Wondershare Filmora is your all-in-one solution. Instead of switching between tools, Filmora lets you edit WebM videos and export them directly as MP4 in one seamless workflow.

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