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MP4 to WebM

WebM Converters: How to Convert MP4 to WebM Online Easily

by Christine Smith • 2020-07-10 10:52:58 • Proven solutions

If you are fond of online videos, then WebM is definitely a known format for you. It is an open media file format that is mainly designed for the web. Google sponsored the development of the format and the container of the file format is based on Matroska profile. Initially, the format supported VP8 video and Vorbis audio streams, but later in 2013, it was updated to support VP9 video and Opus audio. WebM format is mainly built for the web and is widely used by the YouTube and other popular video-sharing sites. If you have a collection of MP4 videos that you wish to upload to videos sharing sites, you would need to have an MP4 to WebM converter. Read below to know about ways to convert MP4 to WebM online free and using other means.

Part 1. Top 5 MP4 to WebM Converters Online

Online converters are a quick, simple and free means to get your file converted to the desired format. There is a list of MP4 to WebM online converters that works at a good speed, delivering decent quality WebM videos. To make your selection task a little easier, we have shortlisted top 5 MP4 to WebM Converter Online:

1. Online UniConverter (originally

Online UniConverter (originally is a popular audio & video converter that supports an array of video and audio formats for conversion purpose. The converter is free to use and allows converting MP4 to WebM format at a quick speed. The program allows uploading maximum of up to 100MB file and the converted file link is sent through mentioned email address. There are no hassles of installation or registration while using the converter.

MP4 to WebM Converters Online -

2. Zamzar

Zamzar is one of the most widely-used online converters that allow to convert MP4 files to WebM format or convert WebM file to MP4. The program supports more than 1200 different types of conversions including video, audio, eBook, music, and many others. The interface of the converter is simple, and clear and supports conversion at a fast speed. Using Zamzar, you simply need to add the MP4 file, select WebM as the output format and enter your email address. The link for downloading converted file will be sent through mentioned email id.

MP4 to WebM Converters Online - Zamzar

3. Convertio

Convertio is another name in the list if top 5 online programs for converting MP4 to WebM files. More than 12,000 different types of conversions are supported by the program including videos, audios, images, documents, eBooks, and archives. Available for Windows and Mac system, the converter is free to use without any need for download or installation. In addition to local PC files, Convertio also allows adding files from Dropbox, Google Drive, and URL. The converted files can be downloaded from the program interface, or can also be directly saved to Google Drive or Dropbox.

MP4 to WebM Converters Online - Convertio

4. CloudConvert

CloudConvert is a known online converter that supports more than 200 types of video, audio, spreadsheet, eBook, image and other file formats for conversion purpose. With simple to understand interface, the program works at a fast speed and does not require any installation. The converter comes packed with additional features of batch conversion and folder monitoring and its powerful API allows using the service in our own applications.

MP4 to WebM Converters Online - CloudConve

5. FileZigZag

FileZigZag is a popular online converter that is free to use and support an array of files like videos, audios, documents, archive, and others for taking care of all your conversion needs. While using the program you simply need to add the desired file to the interface, select output format and enter email address. Once the conversion process is complete, download link of the converted file is sent to the provided email id.

MP4 to WebM Converters Online - FileZigZag

Pros and Cons of Online MP4 to WebM Converters:


  • Majority of online converters are free to use.
  • No hassles of download, and installation process.
  • Simple to use and understand interface.


  • Dependent on availability of Internet connection.
  • Does not support additional features like editing, downloading videos and others.
  • Limited file size support.
  • Supported formats are limited as compared to professional software.

Part 2. Best Alternative to Online MP4 to WebM Converter

Online converter is a simple and quick way for turning MP4 into WebM. But considering its associated cons like Internet dependability, limited format support, limited file size upload and lack of additional features, a better alternative to these free MP4 to WebM converter needs to be looked for. Desktop software with host of features and functionalities thus proves to be the best alternative to online MP4 to WebM converter, and besides converting MP4 to WEBM, you're also allowed to convert more than 1000 video formats, such as converting MP4 to WAV, MOV to MP4, MKV to MP4, etc. One such professional and versatile software is Wondershare UniConverter (originally Wondershare Video Converter Ultimate) that proves to be a complete video toolbox. The program supports more than 150 popular formats including 4K and VR and converts files at 30 time faster speed, thanks to its APEXTRANS technology. Device specific formats are also supported by the software for your convenience.

Wondershare UniConverter - Best WebM Video Converter for Windows / Mac (Catalina Included)

Best MP4 to WebM Converter
  • Directly convert MP4 to WebM, AVI, MKV, MOV and 1000 other formats.
  • Support batch conversion from MP4 to WebM with just a click.
  • Burn videos to DVD disk or Blu-ray disc to play with your DVD player.
  • Edit videos with the advanced video editing functions like trimming, cropping, adding watermark, subtitles etc.
  • Download videos from YouTube and other 10,000+ video sharing sites.
  • All-in-one toolbox: Screen recorder, add metadata, transfer videos to iPhone/iPad, video compressor, GIF maker, etc.
  • Supported OS: Windows NT4/2000/2003/XP/Vista/7/8, and Windows 10 (32 bit & 64 bit), Mac OS 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6
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Watch Video Tutorial to Convert MP4 to WebM with Wondershare UniConverter

Steps to Convert MP4 to WebM with Wondershare UniConverter:

Step 1 Launch Wondershare WebM converter and load MP4 files.

Download Wondershare UniConverter from Internet, install and launch it on your computer. Next, you need to add MP4 files to the software interface. You can simply drag and drop the files or can click Add Files under the Convert tab to browse for the desired file on the PC.

Load MP4 files to MP4 to WebM Converters Online alternative

Step 2 Select WebM as the output format for the MP4 to WebM Conversion.

Once the MP4 file is added to the software interface, go to Convert all files to panel at the top-right corner of the software interface. From the drop down menu, select WEBM and the related resolution as the output format.

Select WebM as the output format

Step 3 Convert MP4 to WebM.

Finally, click Convert All button to start the conversion process. You can find the converted file in the Converted tab.

Convert MP4 to WebM

Part 3. Tips about Converting MP4 to WebM Online

1. What is WebM file format?

Talking in simple terms, WebM is a media file format that is open, royalty free and is mainly designed for the web. The structure of the file format is based on Matroska container and it contains VP8 or VP9 as the compressed video streams and Vorbis or Opus audio codecs as the compressed audio streams. The format provides the open video compression for HTML5 and it gets supports as a part of HTML5 video delivery from the majority of the web browsers. WebM can be considered as an alternative to h.264 and MPEG4 standards which are patented.

2. Benefits of using WebM format

There are numerous benefits of using WebM file format. First of all, the format is open and innovative. The format is free and is open sourced under BSD-style license.

Another benefit of using the format is the fact that it is optimized for the web. Traditional broadcasting is different from serving videos over the web and here WebM addresses the unique needs perfectly. WebM is a simple container format that is capable of delivering high-quality real-time videos.

3. Reasons to convert MP4 to WebM format

MP4 is the most widely used and popular video format that is compatible with almost all portable players and devices. The MP4 format can be used for viewing video files but if wish to upload it on YouTube or other video sharing sites, you would need to convert it to WebM. Since WebM is simple, free, and high-quality format, it takes complete care of video publishing needs.

So we've introduced methods as well as pros and cons to convert MP4 to WebM online. Considering the constraints of online converter, we recommend the best alternative to online MP4 to WebM Converter - Wondershare UniConverter. So now startusing professional software like Wondershare UniConverter and share your favorite MP4 videos to YouTube and other sites.

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