MKV to MP4

MKV to MP4 features

• 01

  Universal compatibility

  MP4 with H.264 plays everywhere — iPhone, Android, smart TVs, default Windows/macOS players, Premiere, Final Cut, Instagram, TikTok, YouTube. MKV needs special players; MP4 'just works' anywhere.

• 02

  Quality slider for fine control

  Use the 1–100 slider to balance file size against visual fidelity. A setting of 75–85 produces results indistinguishable from the source on most displays.

• 03

  100% private, runs in your browser

  Powered by FFmpeg compiled to WebAssembly, conversion happens locally on your device. Your video never reaches a server and nothing is logged.

MKV to MP4 FAQ

How do I convert MKV to MP4?

Drop your MKV file onto the upload area (or click Choose file), adjust the quality slider if needed, then click Convert. Download the MP4 file when conversion is complete.

Why convert MKV to MP4?

MKV is great for archiving but isn't supported by smartphones, the default Windows/macOS players, or most social media apps. MP4 (H.264) is the universal standard — converting guarantees it plays anywhere.

Can I import the MP4 into iMovie / Premiere / DaVinci Resolve?

Yes. The output is a standard MP4 with H.264 video and AAC audio, which all major video editors accept natively without transcoding.

Will I lose quality converting MKV to MP4?

Some, since the file is re-encoded. At a quality setting of 80 or above, the difference is barely perceptible. Push the slider higher (95–100) for maximum fidelity.

Is my video uploaded to a server?

No. The converter runs entirely inside your browser using FFmpeg WebAssembly. Your video files never leave your device and nothing is stored or logged.