How to Convert MKV to MP4 for Free

Introduction to video conversion

Video conversion is the process of changing the format of a video file so it can be played on different gadgets, players, or platforms. This often involves changing the video codec, audio codec, or the container format to ensure your video files are compatible. It's important to understand the differences between container formats and codecs to ensure a successful conversion and avoid compatibility issues.

For example, MKV files are popular for their ability to store multiple audio and subtitle tracks, but some players may not be able to run MKV files, which is a common reason for converting to MP4. MP4 files are widely compatible and are popular for sharing and streaming videos over the Internet. By changing MKV to MP4, you can make your videos accessible on various gadgets without sacrificing quality.

Conversion methods

When you convert a video file, the process usually involves either changing how the video or audio stream is stored, or fully reprocessing the file to make it more compatible across different platforms.

One way to do this is remuxing, which is simply changing the "container" by copying each stream, such as the video stream and audio stream, from one container to another without re-encoding. This method is fast and keeps the original quality.

The other method is called transcoding, where the video, audio, or both are re-encoded into new formats. This approach is useful when the original file uses formats your gadget can't handle, like certain types of audio. For instance, you might convert a file with DTS sound into one with AAC sound to make it play properly on a phone or TV. You can also increase the video quality or resolution by adjusting encoding settings during transcoding.

To summarize, remuxing is sufficient when the video plays correctly and you only need to change the container format (e.g., from .mkv to .mp4) without altering the actual video or audio. It's fast, and there's no quality loss since you simply copy each stream. Transcoding is necessary when the file won't play because of unsupported video or audio codecs (e.g., DTS, FLAC, or HEVC), you want to change video quality, resolution, file size, or number of audio channels (e.g. from 5.1 surround to stereo), or you're targeting specific devices that only support certain formats.

How to choose a converter

There are several options available for converting files, including online converters, dedicated software, and media players, like VLC, that offer built-in conversion features.

Some of them provide advanced features such as batch processing, support for large file sizes, and the ability to include subtitles or adjust video settings like resolution, aspect ratio, and audio channels. Others may have limitations on file size or supported file types. When choosing a converter, consider your specific needs — whether you prioritize fast processing, maintaining high quality, or require additional options.

Also, ensure that the tool you select is compatible across various operating systems. In such a case, online converters can be an excellent choice as they work directly in your browser on Mac, iPad, iPhone, Windows, and other platforms without requiring installation. A good converter will also let you specify the destination file location and name for your converted video.

How to change MKV to MP4 online

One common reason for converting MKV to MP4 is to ensure compatibility with a wider range of devices.

If you have an MKV file and want to make it more accessible across a wide range of gadgets, converting it to MP4 is an excellent choice. MP4 is one of the most widely supported video formats, compatible with smartphones, tablets, gaming consoles, smart TVs, and PCs.

Having an MP4 file not only improves compatibility but can also reduce the file size without sacrificing quality. MKV videos tend to be larger, which can make them harder to send or store. Additionally, MP4 files are often easier to edit, making them ideal if you plan to work on your video or need it to be easily edited later.

Our online converter offers a simple and free solution for files up to 500 MB. With it, you can quickly and easily convert MKV files not only to MP4 but also to other file types like AVI video files, audio files, or GIF images — all in just a few seconds! Let's take a look at a step-by-step guide.

1. Upload your MKV file

   Open Clideo's MKV to MP4 Converter and click "Get started".

   

   To upload the clip, drag and drop it from a folder or click the "Choose file" button to add it from your device.

   

2. Convert the video to MP4

   After uploading the input file, you need to choose the new destination file extension and configure the necessary settings.

   At the top right, in the conversion window, you will see the MP4 already selected by default.

   

   You can сlick the drop-down list and hover over the video icon to view the other options available.

   

   Before proceeding, click the gear icon to see the additional conversion settings that you can apply. For the MKV to MP4 pair, these settings include adjusting the frame rate (number of frames per second), audio frequency, and selecting audio channels such as stereo or mono.

   

   When you pick all the options that you need, click "Convert".

3. Save the file in MP4 video format

   Click "Download" to save the MP4 clip. After downloading, play the converted file on your device to ensure all is fine. Keep the conversion window open if you intend to change settings or convert a different file.

   

   Should you need any further help or instructions, refer to our Help Center for more details.

Frequently asked questions

What is the easiest way to convert MKV to MP4?

The easiest way is to use an online MKV to MP4 converter tool like Clideo's, which allows you to convert your MKV file to MP4 right in your browser.

Will converting MKV to MP4 reduce the video quality?

Converting MKV to MP4 using proper settings can reduce file size without losing quality, especially if no re-encoding is done or if settings like frame rate and audio frequency are preserved.

Can I adjust video and audio settings in the MKV to MP4 converter?

Yes, many converters let you change settings such as video frame rate, audio frequency, and audio channels to customize the output MP4 file.

Is MP4 supported on all devices?

MP4 is widely supported by most devices, including smartphones, tablets, gaming consoles, smart TVs, and PCs, making it more compatible than MKV.

Can crop or trim the converted file?

Yes, after you close Clideo's converter window, you can continue editing your freshly converted file (crop, trim, change aspect ratio and volume, add text, etc.) in Clideo's all-in-one video editor.

Conclusion

Each format has its purpose. MKV files provide lossless compression, which means they can maintain better quality, making them ideal for high-quality video storage. Meanwhile, MP4 is compatible with most media players, including VLC, QuickTime, and mobile devices, making it a highly versatile format. Remember, no format is set in stone; if you ever need to switch between them, this process can be simple and quick with Clideo's MKV to MP4 converter.