WebM to MP4 Converter: How to Convert WebM to MP4 on Mac/PC

The WebM video format was designed to play directly on web browsers that support HTML5. This is an advanced video streaming format, for videos compressed using the VP8 or VP9 video codecs. The audio streams are in the OGG format or WebVTT text tracks. Now, when you want to upload such videos to your YouTube account, they will not be accepted until they are converted to MP4. You cannot play these directly on a mobile browser, and this is the reason why you should convert WebM to MP4 format. Keep reading this article to get detailed guide to convert WebM video to MP4 with simple steps.

Convert WebM to MP4 with All-in-one Video Converter (3 Easy Steps!)

Do you know the reason why iSkysoft Video Converter Ultimate is the best solution for converting WebM to MP4? It converts faster than any video converter with 90 times faster speed. Before converting, you can add subtitles and watermark to the video as well as trim and crop your video. There are also many features that make the software stand out from others like convert home DVD, download video, compress video, etc. See the main features below:

Get the Best WebM to MP4 Video Converter:

  • Convert more than 150 video and audio file formats, like MP4, WebM, MOV, VOB, WMV, MKV, AVI, MP3, AAC, WAV, etc.
  • Convert video at speeds of 90X losslessly. Batch conversion supported.
  • Use the inbuilt video editor to edit the WebM videos and spruce the a little bit.
  • Download online videos from 1,000+ popular sites, including YouTube, Facebook, Twitter and more.
  • Burn video to DVD with templates and customized background music.
  • Highly compatible with Mac and Windows PC.

User Guide to Convert WebM to MP4 on Mac or Windows PC

Step 1. Import WebM file to iSkysoft WebM to MP4 converter

Begin by launching the program for you to access the files. You can simply drag and drop them right to the program which is easy and fast. To the alternative, go to "Add Files" on the menu, which will allow you to browse through the computer.

This video converter allows convert in batches. You can add more video at one time.

convert webm to mp4

Step 2. Choose MP4 as output format

From the formats tray located on the bottom side of the program, select MP4 as the right output format and that is which the video will be converted to. Be sure to locate the right folder where you want to save the converted files (By clicking the little scissor icon, you will be able to edit the WebM video with the built-in video editor feature).

webm to mp4 mac

Step 3. Start Converting WebM to MP4

Finally, it is time to convert WebM files to MP4. You will be able to locate the “Convert” button which after clicking, the conversion process will begin immediately. It will finish the converting processe in several seconds.

Also read: How to Convert WebM to MP3 >>

webm to mp4

High Quality Video Converter, 90X Faster Speed! - iSkysoft Video Converter Ultimate

Part 2. Free WebM to MP4 Converter Online

The following we are going to share some free WebM to MP4 converterswith you. But before this, we would like to give you some suggestions after we tried these free converters. Well, they generally have common problems, which can be slow converting speed, limited video size and length, low output quality.

So if you are looking for a professional WebM to MP4 converter with limitation, you can go for iSkysoft Video Converter Ultimate in Part 1,which guarantees the high speed and the 100% original quality.

Here, let's start the WebM to MP4 converter online.

#1. Media.io

Step 1. Visit Meida.io website to access the main interface. Once on the primary interface, hit the +Add your files option to upload your target WEBM videos. The file explorer window shall be displayed from where you will select the WEBM videos and click Open to upload to the program.

Step 2. Now choose the output format by simply clicking the drop-down icon beside the Convert to: option. Select Video then choose MP4 from the list displayed under the Video option.

Step 3. After choosing MP4 file format, simply click the Convert button and wait until the conversion process concludes.

convert webm to mp4 with mediaio

#2. Convertio

Step 1. Navigate to Convertio.co and select Video Converter.

Step 2. Click the drop-down icon beside the Select files option and choose the appropriate file upload option. The options given include Computer, Dropbox, Google Drive and url.

Step 3. Select the target WEBM files and upload to the program. Click the drop-down icon beside to: and choose Video then MP4 as your output file format.

Step 4. Choose the file destination and hit Convert button to start the conversion process.

Convert WEBM to MP4 using Convertio

#3. CloudConvert

Step 1. Visit the CloudConvert official homepage using a suitable browser like Mozilla and Chrome among others.

Step 2. On the main interface, hit the Select Files drop-down arrow and choose a suitable file upload option. You can upload the WEBM file from the computer, url, Dropbox, Google Drive, OneDrive, and from the box.

Step 3. When the file is uploaded, just click the drop-down icon beside the uploaded file and select videos. Go through the video formats and select MP4. Now select the file destination under the Save file to my icon.

Step 4. Click Start Conversion and wait for the program to complete the whole process.

WEBM to MP4 using CloudConvert

#4. WEBM to MP4 Online

Step 1. Navigate to the free WEBM to MP4 Converter online to view the home page and click the Choose File button. This should open the file explorer window so that you can select and upload the WEBM video files you would like to convert to MP4.

Step 2. Once you have chosen the input file, simply wait for the program to complete the conversion process. Now download the converted file in the MP4 format.

WEBM to MP4 using WEBM to MP4 Online


Step 1. Go to Zamzar file conversion homepage. Hit the Choose Files option. This should lead you to the file explorer window where you will select the respective WEBM files you wish to convert. Once selected, simply hit Open to upload them to the program.

Step 2. Click the drop-down icon beside Convert files to: option. Choose MP4 format under the Video category.

Step 3. Hit the Convert button to begin the conversion process. You can just monitor the process on the status bar below the window. Just click Download when the process completes in order to fetch your newly converted file.

WEBM to MP4 using ZAMZAR

Part 3. How to Convert WebM to MP4 with FFmpeg

Converting WEBM to MP4 involves entering a command that specifies the source as a WEBM file and an output as an MP4 file. You can choose to keep the original quality or adjust depending on your interests. In this tutorial, we will only convert a WEBM file called picnic to an equivalent MP4 file while keeping the original quality of my video.

Convert WebM to MP4 with FFmpeg

Learn More: WebM vs MP4

A WebM file is royalty-free media file format specifically designed for the web. Its files structure is based on Matroska container with video streams compressed with either VP8 or VP9 video codecs. The audio, on the other hand, is compressed with Vorbis and Opus Audio codecs. This file can open on a host of web browsers. For example, YouTube uses WEBM file format for its videos and so does Skype and Wikimedia.

MP4 is a smaller sized video file format with a high degree of compression. This format is an international standard for both audio and visual coding. This highly versatile and compressed video format is an extension of MPEG-4 video file format.

Compression Technique The video is compressed with VP8 or VP9 video codecs and the Vorbis or Opus codecs for audio Both the AVC MPEG-4 and H.264 video codecs are used.
Compatibility with Devices There is actually no support for mobile devices This format is supported by several mobile devices
Browser and player support Limited browser and media player support This media file format is supported by nearly all media players and browsers
Streaming Supported This particular format is designed for internet streaming. This media file can be uploaded to websites.
Size The size is much smaller and can be downloaded much quicker The size is small but is larger than WEBM
Quality High quality but inferior to MP4 Better quality than WEBM
iSkysoft Editor
Dec 20,2018 17:08 pm / Posted by to Convert MP4 , Other Video Format

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