Convert MKV to MP3

Convert MKV video to MP3 online in a few seconds, with automatic file deletion. Free, fast and without an account.

Your file is deleted automatically after conversion.

How to convert MKV to MP3

MP3 plays on every phone, car stereo, speaker and media player, which makes it the safest format for sharing audio. The MKV is converted with FFmpeg, the industry-standard media engine, on our server and deleted immediately afterwards. It is the easiest way to keep the music, a talk or a voice track from a video.

Step 1: Choose your MKV file
Drag and drop a .mkv file onto the converter or click to browse. It works on desktop, tablet and phone.
Step 2: Convert to MP3
The file is converted by FFmpeg on a secure server.
Step 3: Download the MP3
Save the MP3 file to your device. You can start again with another file right away.

Good to know

Only the soundtrack is extracted; the video stream is discarded, so the result is much smaller than the original.
The default 192 kbps is transparent for most listeners; choose 320 kbps for music archiving or 128 kbps for speech and podcasts.

Why use this MKV to MP3 converter?

MP3 plays on every phone, car stereo, speaker and media player, which makes it the safest format for sharing audio.
Keeps the original sample rate and stereo channels.
No watermark, no length limit within the file size cap.
Files are deleted automatically after conversion.

Is it free?

Yes. Converting MKV to MP3 is free, with no watermark, signup or email required. Local conversions have no artificial file-size or daily cap; the practical limit is your device. This server-based conversion accepts files up to 100 MB.

Is my file uploaded?

This conversion needs a server engine, so the file is uploaded over an encrypted HTTPS connection, converted in an isolated temporary folder and deleted automatically as soon as the result is sent back. Nothing is kept, logged or shared.

About the formats

What is MKV?

MKV is the video file of Matroska, an open, royalty-free multimedia container first released in 2002. It can store virtually any video and audio codec, as well as multiple audio tracks, several subtitle streams, chapters and attachments in a single file. Players such as VLC and many smart TVs handle it well, but support in browsers, Apple software and editing tools is limited.

Use MKV to archive films and series with several languages and subtitle tracks, or to store high-quality rips without re-encoding. When you need a video to play on phones, in browsers or in editing software, remuxing or converting it to MP4 is usually the easiest option.

MKV (Matroska video)

What is MP3?

MP3 (MPEG-1 Audio Layer III) is a lossy audio format developed largely at the Fraunhofer Institute and standardised by MPEG in the early 1990s. It removes sounds that human hearing is unlikely to notice, shrinking files dramatically. Quality depends on the bitrate: higher bitrates sound closer to the original. Its patents have expired and virtually every player, car stereo and browser supports it.

Use MP3 when compatibility is the priority: podcasts, music for older devices, audio for websites or files you send to anyone. For archiving or editing, keep a lossless original such as WAV or FLAC, because each lossy re-encode adds artefacts.

MP3 (MPEG-1 Audio Layer III)

Frequently Asked Questions

Is MKV to MP3 conversion free?

Yes. It is free, with no watermark, signup or email required. Local conversions have no artificial file-size or daily cap; the practical limit is your device. This server-based conversion accepts files up to 100 MB.

Will the MP3 sound the same as the MKV?

At the default bitrate the difference is inaudible for most people. Choose a higher bitrate if you plan to edit or archive the audio.

Are tags such as title and artist kept?

Common tags are copied when the source contains them.

Is it safe to convert mkv to mp3 here?

Yes. The upload is encrypted, the file lives only in a temporary folder during conversion and it is deleted automatically afterwards. We do not read, keep or share your files.

Do I need to install anything?

No. Everything runs in a modern browser (Chrome, Edge, Firefox or Safari) on Windows, macOS, Linux, Android and iOS. There is no app, plugin or account.

AudioProcessed locally