In my previous post, I have introduced Wondershare Video Converter Ultimate to convert MKV to MP4. Although it still is working great, I notice the quality loss. So I am quite wondering how to convert MKV to MP4 without losing quality? As far as I can see, MKV and MP4 both are great containers and they accept almost any codec. So, it seems very simple to convert MKV video files to mp4 without losing quality because what we do is just a remux without re-encoding.
In Wondershare UniConverter’s high-speed conversion mode, it seems it does so, however, the codec is really limited as it only supports the below-mentioned video formats and codecs like MOV, MKV, etc. And H.264 is the only codec that is supported. (Wondershare UniConverter was called Wondershare Video Converter Ultimate. )
I have a number of MKV files that I have from MakeMKV and the codec is MPEG2. With Wondershare, I am not able to convert MKV to MP4 without losing quality as it re-convert it to H264.
In this post, I will recommend another program that is able to convert MKV to MP4without losing quality as it keeps the original video and audio codec without re-coding.
Best MKV to MP4 Converter With Passthrough Profiles
What I recommend is DVDFab. I have been using it to rip and convert Bluray and DVDs and I am impressed by its passthrough profiles. As you can see in one of my previous posts, you can see that I use DVDFab to rip Blu-ray M2TS to MP4 without re-coding. This is because both M2TS and MP4 are compatible with the H.264 and there is no need to reconvert and the passthrough keeps the original video and audio quality.
Actually, DVDFab is a connection of tools that are able to do Bluray DVD ripping, copying, creating, video converting, downloading, and burning. It is also able to remove DRM protection from iTunes videos and audios.
With the passthrough profiles in DVDFab, I believe it is the best MKV to MP4 converter and it supports MKV files with different codecs like MPEG2, H265, H264, etc and it is even able to convert 4k MKV to 4K MP4 on both PC and Mac. Take a look at the advanced settings in DVDFab’s passthrough profiles, you will see it keeps everything in its original way, and that is why it keeps the original quality!
How to Convert MKV to MP4 Losslessly on PC and Mac
And in this post, I will walk you through how to convert MKV to MP4 without losing quality with DVDFab. The screenshots in this guide are taken along with the PC version, but it also applies to the Mac version as the two looks and works the same.
Please click the below button. It will take you to the official download page and free download and trial are available for all PC and Mac users. Download, install, and launch the program to get ready.
Step 1. Load MKV
Click the Converter tab and drag and drop the MKV files to the program. You can also add them by clicking the Add button.
Step 2. Passthrough Profile
In order to convert MKV to MP4 without lossing quality, we will have to choose the previously mentioned Passthrough profiles. Follow the below image to locate the passthrough profiles:
You will see there are two profiles available: MKV and MP4.
Step 3. Convert MKV to MP4
Since the passthrough profile keeps everything in original, there are no more settings needed to convert MKV to MP4 without losing quality. What we need to do now just hit the big Convert button and leave the rest to the best MKV to MP4 converter, DVDFab.
Troubleshooting-The output MP4 file is NOT playable on my TV/Plex etc?
This is possible when we do MKV to MP4 without re-coding. However, as different TVs or other devices accepts different codecs even they are in MP4 container, your TV or other devices may not able to play the MP4 file we get from MKV. Just because of the codec. And it is very simple to fix.
Firstly, you need to confirm what video format and codec your TV or other devices supported and then re-convert the MKV file to MP4 with the requested video codec. This way, you may lose 1% video quality, however, please don’t worry, your eyes won’t even see the difference.