MKV to MP4

Convert supported MKV video into MP4 with checks that required audio and video tracks survive.

Private browser workspaceInput: MKV → Output: MP4 / H.264 + AAC

⌁

Your file never leaves this browser

Processing happens locally using browser APIs and on-device code. Closing this tab clears the working data.

How it works

Done in three simple steps

Choose mkv from your device.

Choose the available options and process the input locally.

Review the result, then download it to your device.

Good to know

Will unsupported audio be silently removed?+

No. A conversion that unexpectedly loses a selected audio or video track fails without offering a partial download.

Are my files uploaded?+

No. Processing happens on this device. The tool may download its own code, but source files and output are not sent to a processing server.