Convert mkv to m4a
Converted on your device. Files never leave this tab. Output tops out around 2 GB.
Nothing is uploaded
The converter runs inside this page. Cut your network after it loads and it still works.
No account, no daily limit
No sign-up, no daily limit, no watermark, no queue behind other people's files. Batch as many MKV files as you like.
Real M4A output
Encoded by ffmpeg, the same library the command-line tools use — not a renamed extension.
About MKV
Matroska Video
An open container first released in 2002 that can hold almost any video and audio codec, plus several audio tracks, subtitle tracks and chapters in one file. Use it to keep multiple languages and subtitles together; convert to MP4 for devices that do not read MKV.
About M4A
MPEG-4 Audio
An audio-only MPEG-4 file, the format iTunes and Apple Music use. It usually holds lossy AAC and sometimes lossless ALAC. Use it for iPhones, Macs and iTunes libraries, where it plays and tags natively.