Switching from one to another normally leads to data loss, and size increasing or reducing. Different video codecs use different compression algorithms. If simply remuxing MKV to MP4 doesn’t solve your problem, then think about the re-encoding way, like from MKV H.265 to MP4 H.264.File size won’t fluctuate and there should be no quality loss at all. Just change the container, for example from MKV H.264 to MP4 H.264. If it is imperative to keep quality as high as possible, better intact as the original like 4K, then remux MKV to MP4.Go to VideoProc’s Official Page and Enjoy the Time-Limited Special Offerįirst let me walk you through some confusing steps of converting MKV to MP4, mainly related to the difference between remuxing and transcoding. And feel free to keep this HD/4K video converter and editor as long as you want. To be clear, the discounted version comes with full benefits from decent tech support to free upgrade. A Lifetime License, originally priced at $78.90, is now only $29.95, saving you around fifty bucks. It is not freeware, but you do have free access to the trial version, for free downloading and testing if it’s really that good for you.Īnd the best news here is VideoProc is on sale.

By the way, far from being pure-converter software, VideoProc is also an entry-level 4K video editor. If an integration of easy, fast, professional, stable, and no-limit is your thing, then VideoProc is the one worth using, for both remuxing and re-encoding MKV to MP4. Online cloud MKV to MP4 converter sounds more convenient, however always with limits in file size, length, video resolution, or even bit rate. If you are OK with command lines and somewhat complicated video parameter settings, try FFmpeg or HandBrake. Here comes the inevitable question: which is the most reliable MKV to MP4 converter ?īy reliable, if you mean free and safe, VLC player is a pretty good option, although with such-and-such an error, especially when converting and editing large 4K videos. Re-encoding to reduce file size is yet another possibility. So an educated guess as to why you want MP4 over MKV is that something is wrong with your MKV video loading when playing or editing. The difference is the former handles more types of data whereas the latter is more widely accepted. Both MKV and MP4 are popular file formats.

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