Free FLV to MP4 ConverterFree FLV to MP4 Converter

Free FLV to MP4 Converter is an excellent application and does best in converting FLV videos to MP4 at an amazing speed, with no limit to the number of the files.

How to Free Convert WebM to MP4 in Top 10 Ways

WebM, as the audiovisual media file format is originally developed to offer the free-license alternative in the HTML5 video and HTML5 audio. Supported natively by FireFox, Opera, Google Chrome, VLC, MPlayer and other limited software, WebM files fail to play on Mac, iOS device and other devices without the third-party support.

To open WebM files conveniently, the recommended way is to convert WebM to MP4, the most popular format compatible with almost any device.

After trying out some different methods and apps, and we have come up with this list, top 10 free WebM to MP4 converter, which can turn WebM into MP4 online and on computer.

Let’s dive right into our apps and methods.

WebM to MP4

Part 1. Top 10 Free WebM to MP4 Converter

1. Free Online Video Converter


Free Online Video Converter is the freeware to change WebM to MP4 without limit. It can convert WebM into other mainstream formats like MP4, MOV, AVI, MKV, WMV, GIF, and more. Moreover, it can extract MP3, FLAC, WMA, etc., from the WebM files.

  • 1. Batch convert WebM into MP4 on any browser.
  • 2. Customize video codec, resolution, etc.
  • 3. Convert WebM and other videos into GIFs.
  • 4. Without any times or file size limit.
Convert Webm to MP4 free online
2. CloudConvert


CloudConvert is another freeware to turn WebM to MP4, MKV, MOV, AVI, MP3, WAV, and more. It also gives you more controls of video codec, fps, width, audio codec, etc., to customize the output MP4 format.

  • 1. Convert WebM into MP4 with H.265 support.
  • 2. Convert WebM from URL.
  • 3. Your daily limit is 10 conversion minutes.
CloudConvert webm to mp4


ONLINE-CONVERTER.COM is the online WebM converter. It can convert WebM files from URL, Dropbox, Google Drive or local computer. Similar to CloudConvert, it lets you adjust the MP4 audio and video parameters, like resolution, channel, codec, and more.

  • 1. Compress converted MP4 file size as you wish.
  • 2. Crop, cut, rotate and flip video before conversion.
  • 3. The total file size limit is 100 MB per conversion.
  • 4. The maximum batch conversion are 5 files per conversion and 20 conversions per day.
Online converter webm to mp4


ZAMZAR is the well-know WebM to MP4 converter online. Not only converting WebM files from your hard drive, it also allows to copy and paste the URL to download and convert WebM to MP4 from online sites. Without any customizable settings, it is simple to use.

  • 1. It is simple to convert WebM to MP4 online directly.
  • 2. Download and convert WebM into MP4.
  • 3. You should create a ZAMZAR account to download the converted MP4 files.
  • 4. Free account has the limitation of maximum file size and conversion times.
Zamzar webm to mp4
5. Convertio


Convertio is the free WebM into MP4 converting software online. Like ONLINE-CONVERTER.COM, it offers the simple editing tools like compress, rotate, etc., for the output MP4 file.

  • 1. Convert WebM into MP4 from local computer and online RUL.
  • 2. 100 MB maximum file size for no-sign-up account.
  • 3. Batch WebM conversion is enabled in premium account.
Convertio webm to mp4

Online is the free WebM to MP4 converter without sign-up. Like other online converters, it also offers you the advanced settings to adjust the codec, aspect ratio, frame rate, and more.

  • 1. Convert WebM into MP4 with the maximum file size of 1GB.
  • 2. Rotate, flip, and trim videos.
  • 3. Transcode WebM into MP4 without sign-up.
  • 4. Customize MP4 parameters before conversion.
FreeConvert webm to mp4
7. Free Video Converter

Windows Mac

Free Video Converter is the free desktop software to change WebM to MP4 on Windows and Mac computer. Supporting a wide range of video and audio formats, it can turn WebM into MP4, MOV, AVI, MKV, WMV, MP3, ALAC, FLAC, WMA, WAV, and more.

  • 1. Convert WebM into MP4 without any limit.
  • 2. Add opening and ending theme into videos.
  • 3. Convert WebM to device for iPhone, Mac, Samsung, etc.
  • 4. Adjust MP4 parameters before conversion.
Select MP4 format
8. VLC

Windows Mac

VLC, known as the open source WebM media player, can be the WebM file converter to transcode WebM into MP4 by recording. The steps of changing WebM format are not as easy as other common WebM converter, but it is totally free to use.

  • 1. Convert WebM into MP4 cross-platform.
  • 2. The interface is not easy to use.
  • 3. Support H.265 and VP8 codec.
VLC webm to mp4
9. HandBrake

Windows Mac

HandBrake is another free video converter. It converts video from nearly any format, including WebM into MP4 and MKV. Besides, it can also cope with DVD and Blu-ray conversion to extract the digital files for portable playback.

  • 1. Convert WebM into MP4 cross-platform.
  • 2. Edit video effects like filters, quality, and more.
  • 3. Support H.265 and VP9 codec.
Custom mp4 output settings in Handbrake
10. FFmpeg

Windows Mac

FFmpeg is a free and open=source project, which contains a vast of software to handle video, audio and other multimedia files and steams. It holds libavcodec, an audio/video codec library used by many commercial and free software products. Surely, it can also help you convert WebM into MP4 via command line.

  • 1. Change WebM into MP4 cross-platform.
  • 2. Convert, record and stream WebM files.
  • 3. It is professional to use.
FFmpeg webm to mp4

Part 2. How to Free Convert WebM to MP4

The above list is the top 10 free WebM to MP4 converter online and desktop. You can find the best one by reading the reviews.

Here, we will take Free Online Video Converter as an example to show how to convert WebM to MP4 online.

Step 1. Upload WebM files

Open this online freeware via your browser. Click Add Files to Convert button, and a window pops up and asks you to download and install the launcher, which will combine converting and downloading in one click without more clicks.

Then an open-source window displays after the successful installation. Select the WebM file you want to convert to MP4 from local computer. It supports batch conversion and you can upload batch WebM files.

Add webm files online

Step 2. Select MP4

Select the checkbox of MP4 at the bottom. The Settings icon next to the MP4 pane gives you more controls to adjust the parameters like encoder, frame rate, resolution, bitrates, etc.

Select MP4 for Webm files

Step 3. Convert WebM to MP4

When everything is OK, click the Convert button to select the destination to store the converted MP4 files. Then click the Convert button again to turn WebM to MP4 immediately.

While it converts WebM file, the downloading process will be done at the same time.

Convert Webm to MP4 free online

Part 3. People Also Ask about WebM to MP4

What is a WebM file?

WebM is the media format developed to use in the HTML5 video and HTML5 audio. Based on a profile of Matroska, WebM supports video codec of VP8 and VP8, and audio codec of Vorbis and Opus. It is widely used in web browsers to watch the videos. Currently, a few limited software can play WebM files natively. For opening the WebM files conveniently, you have to convert WebM into other more popular formats.

What can open WebM files?

You can watch WebM videos via VLC media player, MPlayer, K-Multimedia Player, JRiver Media Center, Firefox, opera and Google Chrome natively. Safari for macOS have to rely on QuickTime to play the web WebM videos. Internet Explorer 9 and later can open WebM files via the plug-in on Windows Vista and later. Currently, iOS device and Mac computer cannot play WebM files natively.

Is WebM better than MP4?

Firstly, as for the video quality WebM mainly uses VP8 and VP9, while MP4 is based on H.264, and WebM is better quality than MP4. Secondly, in the terms of file size, WebM files tend to be a bit smaller than MP4 in the same quality. Thirdly, WebM is widely used for streaming while MP4 can be accepted by almost any device, including streaming. The better one depends on how you use.


Though WebM file is better quality than MP4, WebM can be played on browsers and limited native player. For using WebM files conveniently, you had better convert WebM to MP4. Here, we scratch the Google, and find the top 10 free WebM to MP4 converters. All of them can free convert WebM to MP4, but some of them have some limits.

Which one is the best one for you?

Do you have any recommendations?

Let me know by leaving your comments below.


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