Best free mkv to mp4 converter that works on windows 11?

Shutter Encoder is a free, professional-grade, cross-platform multimedia conversion tool built on the powerful command line engine. It is designed for users who need maximum control, quality, and versatility when processing video, audio, and image files.

Unlike many basic mkv to mp4 converters in windows 11, it offers a vast array of specialized functions tailored for advanced workflows, including high-quality codec encoding, professional broadcasting formats, and essential editing functions like color correction, loudness normalization, and hard-coded subtitling.

How to convert mkv to mp4 free on windows 11/10

1. Add File & Choose Function: Drag and drop your MKV file into the Shutter Encoder window. From the "Choose Function" list on the left, select "Rewrap".

2. Set Output Format: In the panel that appears on the right, set the output extension to ".mp4".

3. Optional Adjustments: Use the other tabs (like "Audio" or "Subtitles") to select specific tracks or make adjustments, though for a simple rewrap this often isn't necessary.

4. Start Function: Click the "Start Function" button at the bottom. The software will quickly change the container, and your new MP4 file will be saved to the chosen output path.

Cons:

Steep Learning Curve: The extensive interface and professional jargon can be overwhelming for beginners seeking a simple, one-click solution.

Not Ideal for Simple Compression: While it can compress, its workflow is more complex than dedicated compressors for casual users. The "Rewrap" function only changes the container; to compress, you must use a different function like "H.264" encoding, which requires more technical knowledge to configure.