How to Convert MKV to MP4 With Lossless Quality

Have you ever tried sharing a video or playing it on a device, only to find that the file format isn't supported? It’s a common frustration—especially with MKV files. While MKV is great for high-quality video and rich features, it’s not universally compatible with many smartphones, TVs, or editing programs. That’s where converting MKV to MP4 becomes essential.

MP4 is widely accepted, lighter in size, and perfect for smooth playback across almost any device or platform. Whether you're a content creator, movie enthusiast, or just someone trying to watch a downloaded video on your phone, converting MKV to MP4 can save you time and headaches. In this guide, we’ll walk you through everything you need to know about how to convert MKV to MP4—quickly, safely, and without losing quality.

To convert MKV to MP4, you’ll need a reliable tool like HandBrake or a third-party option such as OneConv Video Converter. While HandBrake works well, using a professional converter like OneConv offers a faster and simpler experience—especially for beginners. In this guide, we’ll use OneConv as an example to demonstrate how effortlessly you can convert MKV files to MP4 without quality loss or complicated settings. It’s quick, efficient, and perfect for all devices.

Download and install OneConv on your computer. Launch OneConv and select "Add Files" to import the MKV files you want to convert.

Select MP4 as the output format for your converted files. You can also customize the video quality by choosing from a range of available options.

Click the “Convert All” button to begin the conversion process. Once finished, your converted files will appear under the “Converted” tab.

In addition to converting MKV to MP4, OneConv Video Converter supports other popular video formats like FLV and MOV. It also lets you extract audio and convert videos to MP3, WAV, AAC, and more, offering flexible, high-quality conversion for all your media needs.