Best 3 Free MKV to MP4 Converter Online to Convert Big Files without Limit

Laura Goodwin 2019/10/31 Muunna video

MKV, as the advanced multimedia container, gains more popularity recently.

However, when it comes to the compatibility, MP4 gets more votes than MKV.

MKV is not accepted by a variety of players, mobile phones, and other devices, e.g. Avid Media Composer, etc.

As a result, the need of converting MKV to MP4 is increasing.

In this post, we gather the best 3 free MKV to MP4 converter online, and detailed steps to make the conversion.

Which one is the best one? You decide it after reading.

Part 1. Brief introduction of MKV VS MP4
Part 2. Top 3 free MKV to MP4 converter online
Part 3. How to convert MKV to MP4

Part 1. Brief introduction of MKV VS MP4

What is MKV?

The extension of Matroska file is .mkv, which is the multimedia container, which hold video, audio, picture or subtitle in one file unlimitedly. MKV is always used to store multimedia content like movies or TV shows. Highly supporting H.264 and H.265, you could get a MKV file with high quality.

What is MP4?

MPEG-4 Part 14 or MP4, like MKV, is the digital multimedia container format to stored video, audio, subtitle and image. Allowing online streaming, and high compression, MP4 is widely used in most devices.

MKV VS MP4

Though MKV and MP4 are multimedia container, they work slightly differently.

As for the container format support by other software and players, MP4 is more widely supported and MKV may have a slight edge.

As far as the quality, both of them support HEVC (h.265) and h.264, so the output quality depends on your section of codec.

As file size, MKV is slight bigger than MP4 if other video or audio codec is the same.

So here, for getting a higher compatibility or smaller file size, MP4 is no doubt the better option.

Part 2. Top 3 free MKV to MP4 converter online

For converting MKV to MP4, there are massive desktop software can do it, VLC, Freemake Video Converter, Any Video Converter, HandBrake, etc.

However, we only focus on the free online MKV to MP4 converters today.

Here, we gather the best 3 MKV to MP4 converting programs to make the conversion.

Ilmainen online-videomuunnin

Ilmainen online-videomuunnin is the free online MKV to MP4 converting software with no limits of time or file size. Highly support over 1000 input formats, you could easily convert MKV to MP4, MOV, AVI, even YouTube, Facebook, etc.

Convert.Files

Convertfiles.com is an online based platform that you can use to make your file convert from MKV to MP4 with ease and convenience. It is the simple MKV to MP4 converter by uploading the files, selecting the output file and converting the file online directly.

Convertio

Convertio is another free online MKV to MP4 converter. Not only local MKV file, it also lets you paste the URL only and get the MP4 conversion in output. Though it supports batch conversion, it requires you to sign up to convert more than 2 MKV files at the same time.

Now, let’s check the differences among the three free online MKV to MP4 converters.

ominaisuudet	Ilmainen online-videomuunnin	Convert.Files	Convertio
Input formats	Over 300	29	Over 100
Output video formats	MP4, MOV, MKV, AVI, M4V, FLV, WMV, WEBM, VOB, MPG, 3GP, GIF, YouTube, Facebook	AVI, 3GP, FLV, MPEG, VOB, WMV, MKV, ASF, M4V, F4V, 3G2, MP4, MOV	MP4, AVI, WMV, MOV, MPEG, MPG, WebM, 3GP, FLV, TS, SWF, M4V, etc.
Output audio formats	MP3, AAC, AC3, WMA, WAV, AIFF, FLAC, MKA, M4A, M4B, M4R	MP3, WAV	MP3, WAV, M4A, WMA, AAC, FLAC, M4R, IMA, DTS, OGG, AIFF, PVF, WVE, AU CUDA, etc.
Converting speed	Fast	Medium	Slow
Convert URL
Batch conversion			(Signup)
File size limit	No	No	Yes
Video settings	Encoder, frame rate, resolution, bitrate
Audio settings	Encoder, sample rate, channel, bitrate
Resolution adjustment

From the above table, you could easily find Ilmainen online-videomuunnin is the best one with no limit for file size.

Convertio is the ideal one option when you want to convert URL MKV to MP4.

Part 3. How to convert MKV to MP4

In this part, we will take the easy MKV to MP4 converter, to show you how to convert MKV to MP4 online.

Vaihe 1. Go to the page of Ilmainen online-videomuunnin, Click “Add files to convert” button. Then you will need to download the launcher, and install it.

Vaihe 2. In the popup, add the MKV file or files that you want to convert to MP4.

Vaihe 3. Select “MP4” in output file, and click “Convert” to start to convert and download the MP4 files to your computer directly.

If you would like, just click the settings image next to the output file to adjust the video and audio codec, resolution, etc.

Johtopäätös

This post mainly talks about the 3 free online MKV to MP4 converters, and make the simple introduction of MKV and MP4. Converting MKV to MP4 can be achieved by the 3 online video converters, and you find the best one solution according to your needs.