MP4 is one of the most widely used video file formats. You can upload MP4 videos to popular social media sites like YouTube, Instagram, TikTok, Twitter and Facebook. Media players like Windows Media Player, VLC, QuickTime, iPhone, iPad and Android are also compatible with MP4 video files. For video files that are saved to your computer, use an open source converter like Handbrake or VLC Media Player. If you don't want to install software, try an online converter like Online-Convert or Zamzar. Many websites and downloadable apps can instantly convert YouTube videos to MP4. Click the “Choose Files” button to select your MOV files. Click the “Convert to MKV” button to start the conversion. When the status change to “Done” click the “Download MKV” button. MiniTool Video Converter Click to Download 100% Clean & Safe. Step 2. Click Add Files to import the M2TS video file from your computer. Step 3. After adding the M2TS file, click this icon to open the output window. In the output window, click Video. Then select the MKV format and choose the wanted video quality that you want to save the video in. See the fastest way how to convert videos to mp4. In this video see how converting videos to the most popular used formats: avi , mov , mp4 , wmv , flv , 3g 1. First of all, download & install Format Factory on your Windows 11 computer. Once installed, open the tool. 2. Next, on the left side, click on the MKV option, as shown in the screenshot below. 3. On the Window that appears, click the Add Files button and select the MP4 file you want to convert. Steps for Convert Unplable MKV/MP4/FLV for KMPlayer with HD Video Converter Pro. Step 1. Launch HD Video Converter Factory Pro on your PC and then choose the “ Converter ” module to enter. Step 2. Click the “ + Add Files ” / “ Add Video Folder " button to import the source video files into the program. Convert WORD to PDF, EXCEL to PDF, PDF to WORD, POWERPOINT to IMAGE, VSDX to PDF, HTML to DOCX,EPUB to PDF, RTF to DOCX, XPS to PDF, ODT to DOCX, ODP to PPTX and many more document formats; Simple way to instant convert MP4 to MKV; Convert MP4 from anywhere - it works on all platforms including Windows, MacOS, Android and iOS; Check our video If in doubt re-encode to H.264 + AAC as shown below. This will re-encode the video to H.264 and stream copy the audio: ffmpeg -i input.ts -c:v libx264 -c:a copy output.mp4. The next example will re-encode both video and audio: ffmpeg -i input.ts -c:v libx264 -c:a aac output.mp4. Lossless H.264 example: Use VEED’s free online video converter to convert your MKV files to MP4. You can also convert your MP4 videos to MKV and other video formats. Over 100 conversions possible. tsayg.