A Full Guide on How to Fix Corrupted MKV Video Files

Repairit - Fix all levels of video corruption and all formats of video easily.

An easy-to-use video repair software for beginners and professionals.

Do you frequently watch movies or get involved in taking video-based training? Facing issues while playing videos on your personal computer, laptop, or mobile phone? It is most probably due to video corruption challenges.

MKV, just like other multimedia formats, is a popular way of storing subtitles, audio, and video in a single file. But, sometimes, you may be unable to play your MKV files due to a couple of reasons that we will see later in this guide. You will learn about the major reasons for video corruption and how to fix them effectively. Let’s get into the discussion.

Part 1. Introduction to MKV Video Format

As far as the popularity of the MKV format is concerned, it is one of the most frequently used file formats because of its flawless encoding and better results, and it supports several advanced features and various codecs.. On the other hand, the chances for these files to get corrupted are also high. Apart from video and audio, MKV also supports subtitles steam.

Generally, MKV files carry online high-definition videos because they support chapter points, descriptions, and ratings. In addition, MKV files are compatible with a range of devices, including but not limited to PSP, iPods, cameras, and cell phones. The major challenge is that these files can damage at any time. So, it would help if you were prepared for that.

But, you don’t need to worry if you come across a corrupt video file, as you can easily fix it with an MKV repair tool online for free. This tool helps you recover all of your damaged and unplayable MKV videos. Before going into the details on how to repair MKV files, let’s find out some reasons that cause this damage.

Part 2. The Causes of MKV Video Corruption

As mentioned earlier, though MKV is a dependable file format, it is still pretty sensitive to corruption challenges. Some of the major factors contributing to MKV video corruption are listed and elaborated on below.

1. Power Failure

A sudden failure of a power supply can be one of the leading reasons for a corrupted MKV video file. Power failure is not only dangerous for your video files, but it is equally harmful to your computers.

2. Abrupt Switch Off

Sometimes, while operating our system, we abruptly turn it off and get busy with other tasks, leading to a corrupt video file. If you are also involved in this activity, try avoiding it on priority and switching off your device once all applications are properly closed.

3. Media Player

If your media player is not compatible with the MKV files you are trying to play with, it can result in corrupted MKV videos. Therefore, before you play your videos, don’t forget to ensure whether or not your media player supports MKV files.

4. Improper Downloading

If you download your files from unverified online sources, they may get damaged. Always spend some time finding trusted sources to download your files from. Similarly, improper downloads have also caused video corruption many times. In addition, faulty or poor internet connection can also result in a corrupted MKV video.

5. File Conversion

Sometimes, we convert our files into different formats we feel comfortable with. But, you should be aware that conversion to an incompatible format can damage your MKV files.

6. Virus Attack

Malware can attack different files on your computer. It can also badly affect your MKV files. To deal effectively with this challenge, you must have powerful antivirus software installed on your computer to update regularly.

Part 3. How to Fix Corrupted MKV Video Files Online?

Are you looking to repair MKV files? Don’t have to invest anything? Looking to benefit from a trusted MKV repair tool? The good news is that Repairit Online - a free MKV repair tool - can help you incredibly fix your MKV files within a few seconds. Let’s have a look at how to use this wonderful tool to repair mkv file online. You can conveniently repair MKV files online for free in just three simple and easy steps (as listed below).

Step 1. Add your corrupted MP4 or MKV videos.

Go to the official site of Repairit Online, click on the “+” sign or press a blue-colored text “corrupted videos” to add the corrupted videos.

upload video
Step 2. Start to fix corrupted video.

Once your corrupted video is uploaded, it will automatically repair MKV file online.

video information
Step 3. Preview and save the videos.

After the video repairing process finishes, you can preview and save the fixed video on your PC.

save video

Congratulations! Have you successfully followed all the above steps? You are done repairing corrupted MKV video files using a free MKV repair tool.


Supports popular video formats (MP4, MOV, 3GP, etc.) and videos shot on any device.

Full-automatic repair,upload a video file and you can download a repaired file in minutes. No need human intervention.

The utmost security technology, the file is transferred via a 2048-bit encrypted connection and it will be automatically deleted after 3 hours.


Repairit Online only supports 3 video formats and 10 video files repair daily.

The repaired video size cannot be larger than 200MB.

1 video to repair at a time and support 30s video segment for preview.

Part 4. Repair Corrupted MKV Video Files with Video Repair Tool

Is your MKV file not playing properly? Worried about finding a more effective MKV video repair tool? Let's look at how to benefit from this free MKV repair tool. Different from the online version, Repairit can help you repair MKV files on both PC and Mac more effectively.


Repairit - Video Repair for Win/Mac

Repair almost all levels of video corruption issues, including video blurry, flicker, choppy, no sound, sluggish display, display stuck, etc.

Repair corrupted/unplayable/unaccessible videos of various formats, such as MOV, MP4, M2TS, MKV, MTS, 3GP, AVI, FLV, MXF, and M4V. It even supports the latest INSV video format.

Support to repair videos shot and recorded on the mainstream video devices, including all leading camera brands such as Canon, Nikon, Sony, GoPro, DJI,etc. or mobile phone.

The "Advanced Repair" function can repair seriously damaged videos with high success rate.

Repair HD, 4K, and 8K videos with a very high success rate.

Step 1. Download Repairit on your PC/MAC, then choose "Video Repair".

You will see a screen on your computer, as shown below. Press the "Add” button to add the corrupted MKV videos.

video repair

After adding the damaged videos, Repairit will check their information, then you will see the details on the below interface.

video information
Step 2. Now, click on the “Repair” button to fix video corruption and wait for some time to get it fixed. Once done, a new popup will appear on your screen as shown below. Press “OK”.
video repair process
Step 3. Preview and save the repaired videos.

Click on the “Preview” button to watch the repaired video before saving it, if you're satisfied with the video quality, press "Save" or "Save All" to keep the fixed videos on your PC or laptop.


However, if the video is severely damaged or you are not satisfied with the quality of the repaired video, please choose "Advanced Repair" to make a higher level of video repairing. For those seriously damaged video that cannot be repaired by the above steps, please check the guide for "Advanced Video Repair" to make a more professional video repairing process.

Part 5. Fix "MKV File Not Playing in VLC"

VideoLan Client (VLC) is a wonderful media player having millions of users from around the globe. Its actual popularity is that it supports several file formats and performs well on multiple devices simultaneously. In addition, it is highly compatible with UNIX operating systems, Linux, Mac, and Windows.

Is your MKV file not playing in VLC? Looking for an instant solution to efficiently deal with this challenge? Take a moment to have a closer look at the methods below.

Method 1:

Step 1. Download and install the VLC media player on your computer. Now, right-click your MKV file and go to "Properties” as shown below.
Step 2. Press the “Change” button, choose "VLC media player", and press "OK". For visual assistance, you can see the image below.
vlc media player
Step 3. Click on your MKV file. This is all from Method 1. This time, it will be opened in the VLC media player.

Method 2:

Have you tried "Method 1" but your MKV file didn't open successfully in VLC? There is nothing to worry about as this method will work for you for sure.

Step 1. Launch the VLC media player. Click on "Media" on the top-left corner and press "Open File" below.
open files
Step 2. Now, select the MKV file you want to open in the VLC and press "Open" as shown below.
open video in vlc
Step 3. After performing "Step 2", your MKV file will be played in the VLC with all the stuff inside. Congratulations! You're done.


Doesn't matter how worried you are about fixing your corrupted MKV files. An incredibly effective and efficient MKV video repair tool - Repairit - is presented to serve you in the best possible manner. You can use the online version of Repairit for free to convert up to 10 media files of 200MB each. Furthermore, PC and Mac versions are also easily accessible. Just give this amazing tool a try to get unbelievable outcomes in a matter of minutes.

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