Easily Convert WebM to MP4 on iPhone Online
How to Convert WebM to MP4 on iPhone
- Drag and drop your WebM file.
- Select your preferred iPhone suppoted output format like MP4.
- Click "Convert" and download your new file instantly.
Playback Error: This video format may cause playback errors or fail to play in some apps and browsers.
Simplify Sharing: It simplifies sharing and video embedding in emails, messages, and social platforms after conversion.
Customizable Output Settings: You can customize the output settings of WebM format, like resolution, bitrate, and more before conversion to ensure smooth playback.
It’s a fact that the WebM format cannot be accessed on iPhone devices due to the reasons listed above. However, you can open WebM in iOS using the following two efficient methods with step-by-step guides:
One way to play WebM videos directly is by using the Safari app on your iOS 17 and later versions. This method supports the WebM format within the browser and lets users stream and view WebM videos. Moreover, you can enjoy good video quality and smooth playback without installing or converting the format. Now, let’s go through the following instructions on how to open .webm files on iPhone:
Instructions. Go to the “Safari” app on your iPhone, copy & paste the link with the WebM videos, and press the “Enter” key. Once the page loads, tap the video and hit the “Play” button to enjoy the formatted content.

If you are looking for an even more versatile solution, then try installing the best WebM player for iPhone, which is installing the VLC app. It is specially designed to cater a wide range of video formats, like WebM in different codecs. Also, the app ensures a reliable playback regardless of the source and any video size with ease.
Instructions. When the VLC app is installed from the App Store, open its main interface and head to the “Browse” tab. From here, press “Local Files,” choose the desired WebM video, and hit the “Play” button to seamlessly view and play the video.

When it comes to playing WebM videos, using a third-party tool is more convenient for a versatile streaming content. For that purpose, presenting Wondershare UniConverter, which can batch convert this format into MP4, MOV, and more. It has more than 1000 formats, high-end encoders, and converts WebM into 8K videos. Its video settings enable you to alter the encoder, the frame rate, resolution, etc, as well as audio.

In addition, the user can access subtitles and Vorbis settings, where they can track the video audio and turn the subtitles on or off. Not only that, UniConverter offers additional editing tools, like cropping, adding filters, changing subtitle formatting, and many more. After conversion, creators can also improve the video clarity, compress the video, and remove the watermark.
Users can follow these easy steps on how this iPhone video converter WebM turn the incompatible format in MP4 with ease:
Open the main interface of this software, head to the “Converter” tab, and press the “+ Add Files” button to import the WebM video files.

After that, click the “Convert To” option, and within the “Device” tab, choose “Apple” tab, and select any iPhone choice. When selected, hit the “Convert All” button to begin the conversion.

Once the conversion is completed, the software automatically downloads the converted videos. You can press the “Improve Clarity” option to enhance the video clarity, and click the “Folder” icon to access the video.

After learning how you can iPhone play WebM videos, let's look at the following highlighted use cases of why it's necessary to convert them into iPhone formats:

Saving Videos from Web: There are many videos online that come in WebM format, which may not always play, so converting them into formats like MP4 ensures smooth playback.
Sharing on Various Apps: Various iPhone users use various popular platforms and messaging apps, and converting WebM to a compatible format allows users to easily send and share videos.
Seamless Editing: For sharing and editing purposes, you need to convert these WebM videos into MP4 formats.
Compatibility with Older Devices: Not all friends or family members may have the latest iOS versions, so for sharing purposes, turn the WebM format into MP4.
In the end, users can learn about the various useful tips that can help them open WebM in iOS using these tips and tricks:
It is recommended to always check if your iOS is updated to ensure maximum compatibility with newer audio and video formats such as WebM. Besides, the latest versions of iOS, particularly iOS 17 and higher, have in-browser compatibility with WebM files. Meanwhile, the old system can hinder WebM video playback or normal operation. Therefore, use the following instructional manual and update your iOS device to its newest upgrade today:
Instructions. Head to your iPhone “Settings,” open the “General” option, and choose the “Software Update” option. If there are any updates available, press “Update Now” to keep the iOS updated.

There are various cloud-based converters out there, like CloudConvert, that let you convert WebM to MP4 on iPhone. With this website, users can upload different WebM video file sizes and seamlessly convert them into formats like MP4, MOV, and more. You can even preview the file frame by frame before downloading it on your iPhone device. The following are the simple steps that can help you transform this unnecessary format into MP4:
Step 1. Visit the CloudConvert website on your iPhone, tap the “Select File” button, choose the WebM video content, and press “Open.”

Step 2. Next, open the “To” option, access “Video,” and pick the “MP4” format. Once selected, hit the “Convert” button, and download the final result.

Users should save any WebM videos from different websites on their Files app to ensure easy management., The Files app does support a wider range of formats and integrates easily with third-party media players, allowing complete access to these videos. So, unlike Photos, files won’t attempt to open unsupported video types, like WebM. With the help of the following instructions, users can learn how to save the video:
Instructions. Go to the desired web browser and not your iPhone Photos. From here, open the video file, tap the “Share” button, and press the “Save to Files” option.

If Safari WebM compatibility fails to play a WebM video, try another browser, as it can sometimes help handle WebM differently. The two other browsers are Chrome and Firefox, which offer alternative playback engines can handle tricky WebM videos. Moreover, you can find more viewing options and help resolve the issue encountered in Safari and convert WebM into MP4.

One of the most reliable offline ways to access WebM videos is to transfer WebM to your computer after conversion. After converting WebM videos to an iPhone-supported format, syncing them via cable ensures you can watch them without internet access. Also, this method is perfect for those with large video libraries or limited data plans. It also provides a stable backup of your important formatted clips and movies.

When you are in a hurry and want quick access to videos, but it’s in WebM format. You can try using a different iPhone video converter, WebM, to streamline future conversions without getting stuck. That’s where bookmarking the site on your home screen creates a quick shortcut, without the need to search for it. This is particularly handy for frequent video sharers or editors, making it highly accessible.

In the end, this article provided users with a detailed understanding of the WebM video format and its various user cases. Aside from that, you looked at multiple ways to convert WebM to MP4 on iPhone, as this format is not compatible with that format. Next, this article provided various tips to manage your videos with step-by-step guides. Finally, to batch convert video files, utilize the most efficient converter tool, Wondershare UniConverter.
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