Convert MKV to MP3 online and pull the soundtrack from movies, concerts and OBS recordings. Upload files up to 20GB and download the converted result in a few clicks.
Drag & Drop your MKV file here
MKV files, up to 20GB
Files stay private.
Automatically deleted after 24 hours.
Link
20GB upload limit.
4.8/5
Trusted for 1,827,796+ conversions
HOW IT WORKS
Three steps, no account, nothing to install.
01
Add your MKV files
Drag and drop or upload the MKV files whose sound you want as MP3.
02
Extract the soundtrack
dragdropdo takes the default audio track and encodes it as an MP3 that keeps the video's timeline. An MP3 track inside the MKV is copied as it is.
03
Download the MP3
Save each MP3 file as it finishes, or download several together as a ZIP.
MKV
MKV (Matroska) is an open container that holds video, several audio tracks, subtitles, chapters and font attachments in one file. It is common for movie and TV rips, Blu-ray remuxes and screen or game recordings.
MP3
MP3 is a compressed audio format that plays on almost every phone, browser, car stereo, media player and editing app. A standard MP3 holds mono or stereo sound, so surround tracks are mixed down to stereo.
FILE FORMATS
SOURCE
Matroska started in 2002 as an open, royalty-free container. An MKV can carry almost any video and audio codec, several language tracks, text and picture subtitles, chapters and even attached fonts. That flexibility makes it the favorite for film backups and recorders, though iPhones, Safari and some TVs won't play it.
TARGET
MPEG-1 Audio Layer III has been the universal music format since the 1990s. It compresses audio by removing sounds the ear is unlikely to hear, so a song takes a few megabytes instead of tens. ID3 tags carry the title, artist and album art, and every phone, browser, car stereo and editor plays it.
| Feature | MKV | MP3 |
|---|---|---|
| Developed by | Matroska (open standard) | MPEG (Fraunhofer) |
| File extension | .mkv | .mp3 |
| Holds | Video, sound, subtitles | Sound only |
| Compression | Lossy (codec inside) | Lossy |
| Best for | Movies and multi-track archives | Music and podcasts everywhere |
| Opens in | VLC, most TVs; not iPhone | Yes |
USE CASES
Practical workflows where MKV to MP3 conversion is useful.
Listen to a concert recording on the go
Save the sound of a concert or live-show MKV as MP3 and play it in the car or on a phone without the video.
Replay a lecture or conference talk
Turn a recorded lecture or talk saved as MKV into an MP3 you can listen to on a commute or during a workout.
Prepare dialogue for transcription
Speech-to-text and captioning tools usually take MP3 but not MKV. Extract the audio first and upload only the sound.
Cut highlights from a game capture
Extract the sound of a gameplay or stream recording saved as MKV for a highlight reel. If mic and game audio sit on separate tracks, you get the default or first one.
Hear a 5.1 movie track on headphones
Movies with 5.1 or 7.1 AC-3, DTS or TrueHD audio become a stereo MP3 that plays on headphones, phones and laptop speakers.
Practice a language with film dialogue
Save the default audio track of a film or episode as MP3 and listen to the dialogue again on a phone or MP3 player.
Keep speeches from a family video
Family videos stored as MKV can be saved as MP3 so relatives can listen to the speeches and songs on any device.
Send audio to a collaborator
Give a sound editor, translator or reviewer a small MP3 instead of a multi-gigabyte MKV when they only need to hear it.
Archive a broadcast recording as audio
TV or IPTV recordings saved as MKV can be kept as MP3 when only the sound matters, such as a talk show or an interview.
Line the audio up with the picture again
The MP3 keeps the video's timeline, with silence where the sound starts late or drops out, so it lines up when placed back under the picture in an editor.
SUPPORTED FILES
MKV files with any common audio codec are supported.
Decoded and encoded as MP3.
From WebM-style MKVs and recordings.
Game and stream recordings saved as MKV.
Keep the music as an MP3.
The default track is used.
TROUBLESHOOTING
Most issues come from which audio track the video contains.
01
Only the default track, otherwise the first, is extracted. Other languages and commentary aren't included.
02
Gaps in the video's sound are filled with silence so the MP3 stays in sync with the original timeline.
03
The video was recorded or exported without sound.
04
If commentary is set as the default track, it's the one extracted. Change the default in MKVToolNix first.
05
MP3 holds two channels, so 5.1 and 7.1 are mixed down.
06
Check the MKV plays in VLC. A damaged file gives only the audio that can be decoded.
VLC, Audacity with its FFmpeg add-on and FFmpeg itself can pull sound out of a video once installed. dragdropdo is built for turning MKV into MP3 quickly, from any device.
| What matters | dragdropdo | Desktop Video Tools |
|---|---|---|
| Nothing to install | ✓Yes. Runs in any modern browser. | ~Yes, a download. FFmpeg also needs the command line. |
| Works on phones and tablets | ✓Yes. Desktop, Android, iPhone and iPad. | ~Mostly desktop. VLC mobile can't export audio. |
| Batch conversion | ✓Yes. Add many files and download one ZIP. | ~FFmpeg can with scripts. VLC and Audacity do one file at a time. |
| Share finished files | ✓Yes. Send a unique link from the result page. | ~You upload and share the files yourself. |
| Pricing | ✓Free with daily limits. $2.99 or $6.99 passes for unlimited use, no monthly plan. | ~Free. |
| Picking which audio track | ✓Uses the default track, otherwise the first. | ~Yes. VLC and FFmpeg can export any track. |
Other tools use different pricing, limits and workflows. This comparison describes dragdropdo's own features without assuming every other tool works the same way.
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WHY DRAGDROPDO
Convert MKV to MP3 in your browser, with nothing to install and nothing kept after 24 hours.
Private by default
Files are encrypted in transit and deleted from our servers automatically after 24 hours.
No install required
Convert in any modern browser on Windows, Mac, Linux, Android, iPhone or iPad. No app and no sign-up wall.
Big files and batches
Upload files up to 20GB each, add several at once, and download the results one by one or as a ZIP.
Share & download
Save finished files to your device or pass them on with a share link from the result page.
MORE MKV TOOLS
MKV, or Matroska Video File, is a flexible multimedia container that supports various video, audio, and subtitle codecs. Ideal for high-definition online streaming, MKV files are widely used for storing movies, TV shows, and other video content. With its ability to hold multiple tracks and metadata, MKV is a preferred choice for media enthusiasts seeking quality and versatility.
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FAQ
Answers to common questions about dragdropdo's MKV to MP3 converter.
