MkvToMp4ConverterGUI

A lightweight Java Swing GUI for FFmpeg that converts MKV files to MP4, featuring audio track selection and optional subtitle hardsubbing

MKV to MP4 Converter (Java GUI)

A simple and user-friendly Java Swing wrapper for FFmpeg. This tool allows you to easily convert .mkv video files to .mp4 format without having to remember complex command-line arguments.

Features

• Track Detection: Automatically extracts and lists all available audio and subtitle tracks from the source .mkv file.
• Audio Selection: Lets you choose exactly which audio track to keep in the final output.
• Subtitle Hardsubbing: Choose a specific subtitle track to burn into the video, or select "None" to skip subtitles entirely.
• Smart Pathing: Automatically suggests saving the output .mp4 in the same directory as the source file.
• Live Feedback: Real-time console output inside the GUI to track FFmpeg's conversion progress.
• Quick Start (Windows): Includes a handy .cmd script to compile and launch the GUI cleanly without leaving the background terminal open.

Prerequisites

• Java Development Kit (JDK): Installed and configured.
• FFmpeg: Must be installed and added to your system's Environment Variables (PATH).

How to Run (Windows)

Just double-click the provided .cmd file. It will compile the Java code and launch the GUI automatically.