Convert MKV to AAC
Free, fast MKV-to-AAC conversion.
Video and audio are processed with ffmpeg in your browser — large files are slow and use a lot of memory. Keep files under a few hundred MB for best results.
About the MKV and AAC formats
MKV. Matroska (MKV) is a flexible open container holding video, audio and subtitles.
AAC. AAC is a modern lossy codec offering better quality than MP3 at similar sizes.
Frequently asked questions
How do I convert MKV to AAC?
Drop your MKV files into the box above and click Convert. The AAC file is generated instantly and ready to download.
Will the quality stay the same?
AAC keeps full quality, so your converted file looks identical to the original.
Is MKV to AAC conversion free?
Completely free, with no sign-up, watermarks or file-size paywalls.