MediaTut

MediaTut/MKV to MP4

MKV to MP4

If an MKV does not open on a TV, iPhone or editor, put the same content into an MP4 container. Often there is no re-encoding or quality loss.

No server upload by default No registration Engine FFmpeg, the same core used by professional tools

Drop an MKV file

MKV video → MP4 that plays everywhere

How it works

Whenever possible, processing happens directly in your browser. Your file stays on the device and the result is generated locally.

STEP 1

Choose a file

The browser reads it from your device. Nothing is uploaded in browser mode.

STEP 2

Process locally

Media operations use FFmpeg compiled to WebAssembly. Image operations use browser APIs.

STEP 3

Download the result

The finished file is created in the tab and saved through the normal download flow.

FAQ

Are my files uploaded?

In browser mode, no. Processing happens on your device. If a tool explicitly requires server processing, the page tells you before upload.

Do I need an account?

No account is required for the browser tools.

Does it work on mobile?

Yes. Large files are usually more comfortable to process on a computer because browser processing uses device memory and CPU.

What happens after I close the tab?

Temporary browser data for the current operation is released. Save the result before closing the page.

Other tools

Choose another common task.

MP4 to MP3Extract audio from video. Compress videoReduce video file size without a watermark. WEBP to JPGConvert web images to a widely supported format. PDF toolsMerge, compress, split and edit PDFs.