Let us now take a look at the easy-to-follow steps to convert MP4 to MKV online. Step 1: Open the PDF2everything website for converting MP4 to MKV online. Step 2: Upload your MP4 file by clicking on the button labeled ‘Click to Select File.’. You can only upload files with a size of up to 100 MBs. Step 3: When the file finishes uploading Sorted by: 2. VLC can change the container of a video file. From the "Media" menu select "Convert/Save". Select the source file (.mkv/.mp4) From the "Convert" dialog you'll want to create a new profile. On the new profile select "mp4/mov" for encapsulation. On the video tab select "keep original track". If your files have audio, on the audio Besides being intuitive and high-quality, this tool is also highly functional. Here are some of the settings available: Video Preview - Use the preview to cut video without losing important content. Aspect Ratio - Perfectly crop video to fit any device or social media platform. Width and Height - Specify exact crop dimensions in pixels. Click on 'Export project' in the top right-hand corner of the editor. Select to convert your file to an MP4, then confirm. Download MP4 file Your video will automatically download as an MP4 file. That's it, you're done! Convert any MKV file to MP4, all online Why do we recommend converting MKV to MP4 files specifically? Click and select or Drag and drop your .mkv files to dark blue box. Once you add all of your MKV videos , simply press Compress. This will compress all of your MKV files. Just wait until we process your files to download them as a ZIP file or individual images. ★. if the mkv file doesn't have the .dts stream then you can just mux what ever audio stream it is into the mp4. mp4 doesn't support .dts -> that's digital theater system. you will have to rename the audio and video stream, the .h264 and .acc, as the same file name for it to work properly, like tittle.h264 and tittle.acc. However, we recommend that you use our default settings that have been optimized for efficiency and quality. Step 3 Starting Convert MKV to M2TS without quality loss. Before converting the MKV file to M2TS, you can change the output folder's location for your convenience. When you are ready, click the Start All button to start the process. I want to convert small clips of a 4K movie to .mp4 without losing quality so I can upload them to YouTube. Loading a whole movie into Premiere Pro and then cutting it at exact points is already a hassle because it doesn't support .mkv. Even if you mod it to do, computer resources are limited for me to drag and cut this file around in the program. Step 1: Free Download AnyMP4 Video Converter Ultimate on Windows/Mac and launch it on your computer. Click the Toolbox menu and choose the Video Compressor tool. Then click the Plus icon to choose the desired videos that you want to shrink with FFmpeg. Step 2: Then you can change the video size, format, resolution, and bitrate freely. Step 1. Click Select Files to find and open the M2TS video stored locally or on a cloud storage for later converting to MKV. Convert M2TS to MKV online free. Step 2. Make sure MKV is selected as the output format. Step 3. Click the wrench icon if you want to adjust resolution, quality, duration, codec, or others. 05MaSo.