MP4 to MKV Converter
Free online tool to convert MP4 to MKV files quickly and securely. No installation required – start converting your files in just a few clicks!
Drag and drop your files here or click to upload.
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Maximum file size is 1GB
How It Works
How to Convert MP4 to MKV
Click inside the file drop area to upload your MP4 file or drag & drop it.
Locate your MP4 file on your device—typically used for various purposes. Ensure the file is under 50MB to avoid upload issues. If the upload fails, check your internet connection or try compressing the file first.
Select MKV as the output format and click the 'Convert' button.
Choose MKV based on your needs—different formats suit different purposes, like JPEG for smaller file sizes. The conversion process typically takes a few seconds, depending on file size and server load.
Download the converted MKV file instantly after conversion.
Once the conversion is complete, click the download link to save your MKV file. You can then open it in software like a compatible viewer. If the file doesn’t download, ensure your browser allows pop-ups from RunConvert.
You can also send a link to the converted file via email. (Optional)
Enter an email address to receive a secure link to your converted file, which is useful for sharing with clients or accessing later. Links expire after 24 hours for security, and RunConvert ensures your data is protected during transmission.
Convert Your MP4 files to other formats
RunConvert.com can convert your MP4 files to these other formats:
Convert Your MP4 files to other formats
Convert Files to MP4 Format
RunConvert.com supports these converters to MP4 format:
Convert Files to MP4 Format
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Frequently Asked Questions
Here are some common questions and answers about mp4 and mkv file conversions asked by our users on RunConvert.com.
Frequently Asked Questions
Q: Do you support RAW image formats from cameras?
A: We currently don’t support RAW formats like CR2 or NEF directly. However, you can convert those to JPEG or TIFF through image editing software before uploading them to RunConvert.
Q: Can I preview my image before and after conversion?
A: Currently, we don’t offer live previews for images, but you can always check the final result by downloading the converted file right after the process.
Q: How do I convert a scanned image to text?
A: To convert scanned images to text, you’ll need to use Optical Character Recognition (OCR). RunConvert can convert scanned images to formats like PDF or Word, which can then be edited as text. Check out our OCR features for detailed instructions.
Q: Can I convert a photo to a web-ready format?
A: Yes, web-ready formats like JPG and PNG are perfect for online use. They help reduce file size while maintaining good quality, making your images load faster on websites.
Q: How do I convert a transparent PNG to a JPG?
A: Since JPGs don’t support transparency, the transparent parts of a PNG will turn white or black in the converted image. If you need transparency, consider staying with PNG or switching to formats like WebP.
Q: Can I convert a photo to black and white?
A: You can definitely convert a photo to black and white, although this feature isn’t built into the conversion process itself. Consider using image editing software to adjust the colors before uploading for conversion. Many apps also have filters that can turn your image black and white!
Q: How do I convert a logo into a high-quality format?
A: To convert a logo into a high-quality format, use formats like SVG, EPS, or PDF. These formats preserve the sharpness and scalability of logos, ensuring they look crisp at any size.
Q: What is image conversion?
A: Image conversion is the process of changing an image from one format to another, like converting a PNG to a JPG. This can help you reduce file size, improve quality, or ensure compatibility with different devices and platforms.
Q: What are the limitations of converting images to vector formats?
A: Converting raster images (like JPEG or PNG) to vector formats (like SVG or EPS) works best with simple, high-contrast images. Complex images with lots of details may not convert well into vectors, as vector files work better with clean, geometric shapes.
Q: Can I convert an image and keep the original file name?
A: Yes, you can! When converting your image, RunConvert will retain the original file name by default, so you don’t have to worry about renaming the file after the conversion process.
What is MKV (Matroska Video)?
MKV (Matroska Video) is an open-source container format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is designed to be flexible and is often used for high-definition video content.
MKV is a popular choice for storing HD movies, TV shows, and videos due to its ability to support almost any type of video and audio codec, as well as multiple audio tracks and subtitles within one file.
How to open MKV?
MKV files can be opened with several media players, including VLC Media Player, PotPlayer, and Media Player Classic (MPC-HC).
For macOS users, VLC and IINA are great options to play MKV files. You can also use the official Elmedia Player for MKV playback.
MKV is Developed by: Matroska Association
MKV was Released on: 2003
Useful Links for MKV:
How to convert MKV?
You can easily convert MKV files to other formats like MP4, AVI, or MOV using our online video converter. Simply upload the MKV file, select your desired output format, and start the conversion process.
Our tool ensures quick and high-quality conversion, making MKV files compatible with a variety of devices and platforms.
What Our Users Say
Don't take our word for it – here's what users think about Runconvert.
Saved me hours of work
I had to convert multiple PDFs to Word for editing. This tool made it so easy and preserved all the formatting perfectly. The batch processing feature is a game changer.
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Professional quality
As a graphic designer, I need reliable conversion tools. This site delivers professional quality every time. The image conversions maintain resolution and color accuracy.
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Fast and reliable
I've tried many conversion tools but this one is by far the fastest and most reliable. No watermarks, no quality loss, and the interface is so intuitive.
David K
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