MP4 to MKV

Ssemble’s online MP4 to MKV converter is a useful tool that allows users to convert their MP4 video files to MKV format quickly and easily. The converter is free to use, and there is no need to download any software. With just a few clicks, users can convert their MP4 videos to MKV, which is a more widely supported format for playback on different devices. Ssemble’s converter ensures high-quality output while also maintaining the aspect ratio and resolution of the original video. Whether you’re a content creator or just someone looking to enjoy your favorite videos on different devices, Ssemble’s online MP4 to MKV converter is an excellent choice.



The online YouTube to MP4 converter by Ssemble allows you to download and convert YouTube videos to the widely popular MP4 format, which is based on the MPEG-4 Part 14 standard. This format is highly compressed without significant loss in quality, making it suitable for online streaming, sharing, and playback on a vast range of devices and platforms. By converting YouTube videos to MP4, users can enjoy broad compatibility, support for various codecs and subtitles, and seamless integration with many applications and services.


With Ssemble’s online YouTube to MKV converter, you can download and convert YouTube videos into the Matroska Video format, a versatile and flexible open-source container format. MKV supports various video and audio codecs, subtitles, and metadata, making it popular among video enthusiasts and professionals. By converting YouTube videos to MKV, users can take advantage of the format’s ability to store multiple audio tracks, chapter markers, and 3D video content. While MKV may not be as widely supported as MP4 or MOV, its rich feature set makes it a favorite for users who require advanced capabilities.


Why MP4 to MKV Converter?

MP4 (MPEG-4 Part 14) and MKV (Matroska Video) are two popular video file formats that offer different advantages. While MP4 is widely used for high-quality videos and is supported by many devices and media players, MKV is known for its support of multiple audio and subtitle tracks and its ability to handle high-quality video content. Therefore, converting MP4 to MKV can be useful in certain situations, such as when you need to add or remove audio or subtitle tracks from a video or when you need to preserve the original quality of the video. This is where a MP4 to MKV converter comes in handy. A MP4 to MKV converter is a software tool that allows users to convert MP4 files to MKV format, making it easier to work with the video content and preserve its quality. With the advantages of MKV for handling multiple audio and subtitle tracks and high-quality video, a MP4 to MKV converter is an essential tool for anyone who needs to convert videos between these formats.

How to Convert MP4 to MKV

MP4 to MKV Converter Tutorial Step 1

Upload a file & Add it to the Timeline

Upload the MP4 file you want to convert. Click the “Upload File” button or drag & drop it onto the Upload Menu. And then click it to add it to the Timeline.

MP4 to MKV Converter Tutorial Step 2

Choose the File Format & Export it

Click the Export button > Choose MKV as a format > Export and Download the file


Convert Files Online in Any Device

Ssemble is an online file converter, which means it works on Windows, Mac, Linux, or any mobile device. It is compatible with all major browsers. Just upload a file and pick the format you want.

Keep the Quality of Original File

When you utilize Ssemble for file conversion, you can be confident that the original quality of your content will be preserved without any compromise.

Convert Any Type of Files

Ssemble allows you to change the format of over 1500 different types of files. You can change videos, images, audio files, or e-books. It has many advanced choices to adjust your conversions.

Free and Secure Tool

It’s also free and safe. We understand that the security and privacy of your files are important, which is why we use 256-bit SSL encryption to transfer files and automatically delete them after a few hours.


In Ssemble, you can upload the MP4 file and export it into a MKV file.

Yes, Ssemble`s online MP4 to MKV converter is free to use.

Yes, Ssemble`s online MP4 to MKV converter is designed to be user-friendly and easy to use. The conversion process is straightforward, and users can convert their MP4 files to MKV in just a few clicks.

Yes, Ssemble's MP4 to MKV converter produces high-quality MKV files that retain the quality of the MP4 video.

There are many MP4 to MKV converters available online, but Ssemble`s online MP4 to MKV converter is the best option, as it is free, easy to use, and can quickly convert your MP4 files to high-quality MKV files.

Yes, it is safe to convert MP4 videos to MKV online using Ssemble`s MP4 to MKV converter. Unlike some online converters that may contain ads or pop-ups that could lead to malware or other security issues, Ssemble`s converter is free of such disturbances. It`s important to note that you should not violate any copyright laws by converting copyrighted material without permission. Ssemble`s online converter uses HTTPS encryption and does not require any personal information or downloads, making it a safe and convenient option for converting your MP4 videos to MKV. So, whether you want to watch a video on a device that only supports MKV or you simply prefer this format, Ssemble`s converter is a trustworthy solution.

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I absolutely love Ssemble! As a freelance video editor, it has helped me increase my productivity tremendously. The plugins are amazing and make editing videos so much easier and faster. Highly recommend it!


Ssemble is a lifesaver! As a small business owner, I don’t have a lot of time to spend on video editing. With Ssemble, I can quickly and easily edit my videos and make them look professional. I love that it allows me to share the project with my coworker. And it's really easy to get feedbacks from them because of the comment feature.


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