Convert MKA to MP3.
MKA is the audio-only side of Matroska — flexible, but barely supported by everyday players. Convert it to MP3 that plays on every phone, car stereo and app.
Matroska, minus the video
Most people meet Matroska as .mkv video files. .mka is the same container carrying audio only — often used for multi-track soundtracks, audiobooks or extracted audio. It's a capable format, but that flexibility comes at the cost of compatibility: hand an MKA to a phone or a car stereo and it usually shrugs. MP3 just works.
From archive to everyday
Convert when you want to actually listen on the move. And if the audio is speech worth reading, hand the MP3 to TranscriptAI for a transcript.
How it works
- 01
Add your MKA
Drop one or many .mka files, or click to browse. Private by default.
- 02
Convert with a local engine
MKA becomes MP3 with ffmpeg — no paid API in the loop.
- 03
Download or transcribe
Grab your MP3, or send it to TranscriptAI for a transcript.
Plays on every device and app
High-bitrate, faithful audio
Handles multi-track Matroska audio
Private uploads, auto-deleted after 1 hour
Batch convert many at once
Transcript-ready output
Your file is ready. Want to do more with it?
Open this file in TranscriptAI to generate a transcript, summary, structured notes, flashcards, quiz questions or action items — automatically.
Common questions
What is an MKA file?+
MKA is the Matroska audio container — the audio-only cousin of the MKV video format. It's powerful and open, capable of holding multiple tracks, but most consumer players and phones don't recognise it. MP3 is the opposite: less flexible, universally supported.
Is it free?+
Yes — convert MKA to MP3 free, with no signup. Paid plans add larger files and bigger batches.
Is my file private?+
Uploads go to a private bucket, are converted, and auto-delete after 1 hour. Files never touch a third-party converter.
What about quality?+
We re-encode at a high MP3 bitrate, so for music and speech the result is faithful to the source.
Related workflows