Top 10 WebM to MP4 Converters [Fully Tested]

There’s a reason VLC is one of the most popular, beloved programs available. It’s completely free and open-source, meaning all of its features are available with no limit, ads, subscriptions, or hidden payments. It supports all common file types and plenty of obscure ones, too. I found the user interface to be a little less intuitive than some of the other, more polished options on this list. But with a little time, VLC Media Player becomes easy to use.

For some users, programs aren’t really necessary for converting WebM to MP4. Maybe you rarely need to complete this conversion, or you just don’t want to go through the hassle of installing software. Whatever the case, Movavi’s Online Video Converter is a great option. I found it incredibly simple to use, likely because it only does one thing: convert media to MP4. And hey, if that’s all you need to do, why look any further than a simple browser-based tool?

How to convert WebM to MP4 using Movavi’s Online Video Converter

1. Navigate to the online converter. Alternatively, scroll to the converter tool on this page.
2. Click on the Add Your Media button and upload the WebM file you want to convert.
3. Ensure you’re converting to MP4 by selecting MP4 from the dropdown menu.
4. Click Convert. Done!

HandBrake is another free, open-source converter program. Unlike VLC, HandBrake specializes in re-encoding media. I liked the presets, which make complex conversions simple. But if you want, you can make plenty of adjustments. Other useful features include batch processing, support for subtitles, audio passthrough, and more. I also appreciated the multiple edits you can make to the video file itself, which include reducing noise, sharpening, cropping, scaling, and others.

How to convert WebM to MP4 using HandBrake

1. Download and install HandBrake on your PC.
2. Click Open Source and select your file. Then click Open.
3. Select MP4 from the list of available formats.
4. If you’d like to make adjustments to your video file, you can do that now. Find parameters in the Video tab.
5. Click Save As and choose where you want to save your converted file.
6. Hit Start and watch your file convert!

You might know Zight as a useful productivity tool, with features like screen recording and webcam capture. But did you know it has a free, reliable file converter tool, too? At first glance, this tool might not look like all that much. The UI is pretty basic, with little more than two buttons: Choose File and Convert to MP4. However, if you’re new to file conversion, or don’t need any other features, then this might be the right option for you. The simplicity does make converting WebM to MP4 easy.

How to convert WebM to MP4 with Zight

1. Open the online converter tool on Zight’s website.
2. Click Choose File and select your WebM file.
3. Hit the Convert to MP4 button.
4. Your file should then be converted.

There are all kinds of reasons to want a web-based conversion tool, rather than a program you have to install. But often, web-based tools are a little lighter on features. In testing, CloudConvert felt like the opposite. It’s a capable conversion program that supports over 200 file formats and plenty of advanced options. For example, you can adjust the bitrate, frame rate, and resolution of your video; basic editing tools like crop and trim are also available. I particularly liked the ability to sync directly to cloud storage. A few different popular services are available, including Google Drive, Dropbox, and OneDrive.

Another tool I liked is the ability to generate unique links that can dynamically convert a certain file on demand. For example, you could have a button that, when clicked, converts a certain WebM file to MP4 format for someone to download. The learning curve for some of CloudConvert’s more advanced features might be a little steep, but they’re often worth the time. And if you want to stick to the basics, the user interface is straightforward enough.

How to convert WebM to MP4 using CloudConvert

1. Open the CloudConvert website.
2. Click Select File and upload the file(s) you want to convert. You can either upload from your computer, paste a URL (e.g., from YouTube), or import from one of multiple cloud storage services.
3. Ensure you’ve selected WebM as the initial format and MP4 as the output format in the two dropdown menus.
4. Click Convert.
5. Download your converted file when it’s ready.

FreeConvert is a site dedicated to, well, converting. That includes units (e.g., feet to meters), time (e.g., PST to EST), and, of course, media files. In fact, FreeConvert supports over 1,500 different conversions, including WebM to MP4. The site is well designed and incredibly easy to use. It should run on every major internet browser, and I found that to be true for Safari, Firefox, and Chrome. You can convert files for free without having to sign up or create an account, although you’ll be limited to a maximum file size of 1GB or 20 minutes long. Still, that should be large enough to convert multiple files, assuming you don’t need to process a particularly long or large video file. The feature I liked best was the file transfer function. When you use FreeConvert to share your converted files, the files are encrypted using 256-bit SSL encryption and automatically deleted after a few hours. That makes sharing the files you’ve converted simple and efficient, and you don’t have to worry about your content remaining available somewhere online in perpetuity.

How to convert WebM to MP4 using FreeConvert

1. Navigate to FreeConvert’s website.
2. Click Choose Files to upload the file(s) you want to convert. If you want to convert more than 1GB, you’ll need to create an account.
3. Ensure your target format is MP4 by selecting it in the Convert To dropdown box.
4. Hit Convert.
5. When your file is converted, click Download to save your converted file.

If you’ve heard of Canva, you likely know it as a web-based editor. That’s what it’s most famous for, and for good reason. But Canva actually has a capable conversion tool, which can handle multiple popular file formats, including WebM to MP4. The process is a little more involved than dedicated file converter programs, which makes sense. Instead of directly converting a WebM file, you have to add it to your Canva project and then save it as an MP4 file. However, this allows you to edit your video file before saving it. Canva has a fairly extensive suite of video editing tools, many of them available for free. You can cut, trim, and split your video; adjust the speed; and add audio, including from an extensive library of licensed music tracks. More advanced editing features are available, too. For example, you can automatically remove the background of a video, generate subtitles, and even remove background noise with an AI-powered tool. If you know you’ll need to edit the file you need to convert, Canva might be a great option, as the video editing is integrated into the conversion process.

How to convert WebM to MP4 using Canva

1. Go to Canva’s website. Start a new design project (or open an existing one). Make sure it’s a video project.
2. Click Upload files and choose the file you want to convert. Alternatively, open the Uploads tab and then drag and drop the file you’re converting.
3. Add the WebM file to the project timeline or main editor. You can do this by dragging and dropping the file from the Uploads tab.
4. Now’s your chance to edit your file.
5. Once you’re satisfied, click Share and then Download.
6. Select MP4 from the file output format dropdown menu. Click Download.

MP4Converter does pretty much exactly what it says. It converts various file formats, including WebM, to MP4. The site is quite basic, but that does make it fairly easy to use. Unlike many other conversion programs, you have to select your input format before uploading the file you want to convert. You can also adjust the resolution of your video. MP4Converter allows you to select from a few different options. I found that quite helpful; sometimes you want to preserve as much quality as possible, while other times it’s worth sacrificing a bit of quality to save space.

How to convert WebM to MP4 using MP4Converter

1. Open MP4Converter’s website.
2. Select the WEBM to MP4 option.
3. Add the file you want to convert.
4. Adjust the settings. The program provides various helpful information boxes to help you navigate the adjustable parameters, and should set most of them to recommended values automatically.
5. When you’re ready, click Convert WebM to MP4.

Winxvideo AI isn’t strictly a conversion tool. Instead, it’s a wide-ranging video editor that includes a conversion feature. But that conversion feature is pretty capable. It supports hundreds of different file formats, including WebM, and can convert to even more, including MP4. You can edit your video with basic tools like trimming, cropping, rotating, and so on. There are tools to add subtitles, reduce noise, stabilize shaky video, and more. If you’re concerned about retaining the quality of the video you’re converting, Winxvideo AI might be the right tool for you; the company claims to preserve quality almost perfectly when converting between different file formats. I certainly didn’t notice any drops in quality when testing. Also, Winxvideo AI has powerful video-enhancing tools, which use neural networks to intelligently upscale video footage.

How to convert WebM to MP4 using Winxvideo AI

1. Download and install the program.
2. Click Video Converter.
3. Select Video and add the file you want to convert.
4. Choose MP4 as your output format.
5. Click Browse to select where you want to save your converted file.
6. Hit Run. Winxvideo AI should then convert your file.