MKV vs MP4: Which Format Should You Use? (Full Comparison)

Choosing between MKV vs MP4 can be confusing, as both formats can store high-quality videos. But the real difference is how each container handles streams/tracks and where you plan to use the video. MKV is an open container that can hold multiple tracks and is preferred on Blu-ray rips. MP4, on the other hand, is a universal container that supports H.264 and is mostly compatible with nearly all devices you can name. This post compares their compatibility, quality, size, subtitle handling, editing, and streaming capabilities. We also cover how to convert MKV to MP4 and how to play these formats error-free.

Quick Comparison of MKV vs. MP4

What Is MKV?

MKV, also referred to as Matroska Video, is an open-source multimedia container format. It can hold multiple video, audio, picture, subtitle, and chapter tracks in a single file. MKV Blu-ray rips are common because they preserve high-quality video, multiple audio tracks, and subtitles.

What Is MP4?

The difference between MKV and MP4 is that MP4 is a universal multimedia container format. It is supported on most modern devices, operating systems, editing applications, and web browsers. And, the MP4 H.264/AAC has the widest possible playback support.

MKV vs MP4: 6 Key Differences

1. Compatibility

MP4’s compatibility has more advantages because you can play it on smartphones, computers, video editors, socials, and even smart TVs. MKV, on the other hand, also works with modern media players and devices. However, the playback depends on the encoding used.

2. File Size

MKV and MP4 files have virtually the same size if they use the same video codec, resolution, and bitrate. So, if you’re asking which is better: MKV or MP4, the answer is neither. If you put the exact same video and audio streams into either file, their file sizes will be the same.

3. Video Quality

When comparing MKV vs MP4 quality, neither offers better video quality. The actual quality depends on the codec and bitrate being used. If both use the same exact video codec, audio codec, and bitrate, their quality would be the same.

4. Subtitles

In this regard, MKV offers superior subtitle support compared to MP4. MKV subtitles can natively handle multiple tracks, rich text styling, and image-based formats. MP4 is also good at handling subtitles. It can contain hard-coded subtitles, soft-coded subtitles, and even closed captions. (Check closed captions vs subtitles here).

5. Editing

MP4 is supported by most of the leading video editors in the area of editing. MKV is also editable in compatible software, but some applications will not import all MKV files or reconfigure all its tracks. MP4 is the obvious winner for general editing compatibility.

6. Streaming

For MKV vs MP4 streaming, MP4 is the standard format used for online streaming. And MKV is better suited to local media servers and home streaming systems. However, transcoding is required for unsupported codecs or subtitle formats.

How to Convert MKV to MP4

Premium Solution

AnyMP4 Video Converter Ultimate is a professional video-to-video conversion software that can both remux and re-encode video files. It can batch-process hundreds of MKV files simultaneously without experiencing lag or crashes. This software adopts the most advanced hardware-accelerating media processing to achieve a 120× conversion speed.

1. Download the MKV-to-MP4 converter and complete the installation.

After setup, AnyMP4 opens to the Converter tab. Click +Add Files to import the MKV videos.

2. Go to Output Format and select MP4 under the Video category. Select Same as Source as your quality preset to convert MKV to MP4 without altering the underlying media stream.

3. Return to the main interface and activate Hardware Acceleration to speed up the conversion. Set the output destination, then click Convert All.

AnyMP4 Video Converter Ultimate isn’t limited to MKV-to-MP4 conversion. As a multi-format video-to-video conversion software, it can re-encode or remux MKV to more than 500+ formats.

Free Alternative

HandBrake is a long-running open-source video transcoder that can decode MKV and re-encode it into a new MP4 stream. It includes pre-made presets, such as Fast 1080p30, to quickly optimize videos for web streaming or mobile devices.

How to Play MKV & MP4

Premium Player

AnyMP4 MKV MP4 Player is a premium software that can play back any file you throw at it. Beyond Blu-rays, BDMV folders, and ISO, it can play MKV files and other digital video formats. Regardless MKV is encoded with H.264, H.265/AAC, XVID, or AV1, you can open and view it.

1. Download AnyMP4 MKV MP4 Player, set it up, and complete the installation.

Click Open File in the main interface and select the MKV video you want to play.

2. As it loads, the playback starts immediately. Use the controls below to pause, resume, and stop the MKV playback.

AnyMP4 MKV MP4 Player can play almost any media you name. It also uses hardware acceleration to process heavily compressed MKs, such as H.265 (HEVC) or AV1, without buffering.

Free Media Player

VLC is a time-tested media playback software available on Windows, Mac, and Linux. As a multimedia player, it can play Matroska video without needing separate codec packs. Aside from video files, it can also play audio files like MP3, WAV, FLAC, and more.

MKV vs MP4: Which Should You Choose

MKV if you are creating your own media collection, trying to save the Blu-ray files, or need more than one stream into one file. However, if compatibility is what you need, then go for MP4, which is the best choice for playback and sharing.