"I was wondering if there was any way to convert an h.264 mkv file (with subtitles) into a mp4 file on Mac, for watching MKV on new iPhone 8 without losing the quality. Any freeware or shareware suggestion would be greatly appreciated."

As Mac users we can play .mkv files using VLC player without downloading any additional codecs, but what if we need to convert MKV to MP4 video on Mac, for example, to play on other devices (like iPad, iPhone, Samsung, etc.)? Most solutions online require Quicktime Pro or Perian (which is no longer updated) or have severe restrictions regarding the encoding types allowed within the .mkv container format.

Here is guide for converting MKV to MP4 on Mac. In the article, three free methods will be provided, and most of the methods can also be used for conversion between other video formats.

Solution 1. Convert MKV to MP4 on Mac with Free Video Converter

If you have batches of MKV files that you want to convert to MP4 or you need a tool to fast convert MKV to MP4 on Mac, you can use a free video converter for Mac. iFunia Free Video Converter for Mac is a free tool that can convert video to various other formats in bulk on Mac. It has presets for most of the popular devices on the market and also has full video handling capabilities including:

  • convert videos as well as audios between 200+ formats
  • download HD 720p, 1080p and even higher quality videos from YouTube, Facebook, Vimeo and 1000+ other websites
  • rip and burn DVD
  • edit videos by adding watermark, adding subtitles, adding effects, etc.

You can download this powerful and versatile tool to explore what it has to offer.

Free Download iFunia Free Video Converter for Mac Now

Download iFunia Video Converter for Mac Now

1. Run iFunia Video Converter for Mac. Drag and drop MKV video files to the interface of the app. You can also click the Media Browser icon at the upper right corner to import MKV video files from Folder, iTunes and Device. To convert MKV to MP4 in bulk, you can import multiple files.

convert video and audio using ifunia video converter for mac

2. Click the RVC button to open the Output Format window. Click the General Video option, and select MPEG4(MP4) as the output format for your video file.

output formats of ifunia video converter for mac

3. Click the conversion button to start converting MKV to MP4. The convert progress bar shows you how much of the encoding is completed.

Note: This video converter for Mac fully supports OS X 10.10 +, including macOS 10.13 High Sierra. It also allows you to manually set video resolution, bite rate, codec and frame rate to get perfect output videos.

Solution 2. Convert MKV to MP4 on Mac with Handbrake

Handbrake is one of the best and most popular free DVD and video converter software programs for over ten years. Though it is sometimes a little bit too perplexing. You may get poor results due to wrong settings before decoding the video. And here we’ll guide and provide you the most simple Handbrake setting to convert MKV to MP4 on Mac.

1. Download and install the program.

2. Launch the program and click ‘Source’ button & select your MKV movie there.

3. Set the Handbrake presets for converting MKV to MP4. In the output settings, choose MP4 as the output format. And you can choose the frame rate, video codec, bitrate just as the below scr. After all this the only other thing to do is tell Handbrake where to put you converted MP4 file.

Depending on your file size, this operation could take a few minutes or a few hours. Note that Handbrake may have to re-encode and/or re-compress videos, and if this is the case, be prepared to leave your Mac on for processing for a considerable amount of time, as it will be time and resource-hungry.

Solution 3. Convert MKV to MP4 on Mac with VLC

VLC has been around for years and it remains one of the most popular video players for Mac. It is open source and completely free, and VLC also packed with hidden features, and one of them is converting videos on Mac. Yes, you can use VLC to convert MKV to MP4 on Mac. Here I’ll show you how.

1. Down VLC and install it on your Mac.

2. Open VLC and click the file menu then select Convert / Stream.

convert video and audio using ifunia video converter for mac

3. Next, just add your MKV file and ensure the profile is set to Video – H.264 + MP4. You can also customize the conversion settings. But here we recommend leave it alone.

4. Lastly, you can click on the "start" button to start the process. Once VLC is finished, you’ll get an MP4 file you can import to iTunes and transfer to your mobile devices.

To Wrap It Up

Above are the common easy way to convert MKV videos to MP4 on Mac. The MP4 format comes with more support and is compatible with almost all media players, smart devices and editing software. After the MKV to MP4 conversion, you are able to use your videos with more software or devices without limits. Software like iFunia Video Converter for Mac allows you to convert video and audio files between various formats. If you are a fan of video shooting, video editing, etc., just equip yourself with one of them!

Free Download iFunia Free Video Converter for Mac Now

Download iFunia Video Converter for Mac Now