MKV to MP4 Converter
The most secure way to convert MKV to MP4 online. Running entirely in your browser using WebAssembly technology.
Drag & Drop Audio/Video
Why convert MKV to MP4?
MKV files are powerful containers that can hold multiple audio tracks and subtitles, making them popular for high-quality movies. Unluckily, native video players on macOS, iOS, Smart TVs, and gaming consoles often struggle to play them.
MP4 is the undisputed king of video compatibility. Changing your MKV to MP4 ensures your video will play flawlessly on an iPhone, an iPad, a Samsung TV, or a standard web browser.
Common Use Cases
- Playing a downloaded movie on an old Smart TV
- Importing a gameplay recording into Adobe Premiere or Final Cut Pro
- Sharing a massive video file to an Apple device
Frequently Asked Questions
Is converting MKV to MP4 free?
Yes, it is 100% free. We run ads to support the site, but the tool itself has no paywalls.
Is my data secure?
Absolutely. Unlike other online converters that require you to upload your confidential files to their servers, we use FFmpeg.wasm to process everything inside your browser. Your data never touches our servers.
Can I do batch conversions?
Yes! You can select multiple MKV files at once and convert them all to MP4 in a queue.
How long does it take?
It depends on your device's speed. Since it runs locally, a powerful computer will convert faster than a mobile phone. For most short clips, it's instant.