Convert MKV to MP4 — Free
Upload your MKV file and get a MP4 in seconds. No account, no watermark.
How to convert MKV to MP4
Convert your MKV video files to MP4 format quickly and easily with BoltConverter. Our free online tool makes it simple to change your video container, ensuring wider compatibility across devices and platforms.
MP4 is a widely supported format, ideal for sharing and playback. BoltConverter processes your files on our servers and deletes them immediately after conversion, keeping your data private and secure.
Upload Your MKV File
Click the "Choose File" button to select the MKV video you want to convert from your device.
Start Conversion
After uploading, click the "Convert" button to begin the MKV to MP4 conversion process.
Wait for Processing
BoltConverter will process your file on our secure servers; this may take a few moments.
Download MP4
Once the conversion is complete, click the "Download" button to save your new MP4 file.
Frequently asked questions
Is BoltConverter free to use?
Yes, BoltConverter is a completely free online tool for converting MKV to MP4 and other file types.
How long does BoltConverter store my files?
Your files are processed on our servers and deleted immediately after the conversion is finished. We do not store any user files.
Is there a file size limit for conversions?
Yes, the current file size limit for each MKV video you convert is 100 MB.
What about the output quality of the converted MP4?
BoltConverter aims to maintain the original video and audio quality as much as possible during the conversion to MP4.
Can I convert multiple MKV files at once?
Currently, BoltConverter supports converting one MKV file at a time. Please convert files individually.