How do I convert MKV to MP3?

Drop your MKV file onto the converter above, make sure MP3 is selected, and click Convert. When it's done, download the MP3 file — it usually takes a few seconds.

Is it safe to convert MKV to MP3 here?

Yes. MKV to MP3 conversion happens entirely inside your browser using WebAssembly, so your file is never uploaded to any server.

Is the MKV to MP3 converter free?

Yes — free with no watermark. Signed-out visitors can convert 25 files a day, and a free account raises that to 250.

Will converting MKV to MP3 reduce quality?

MP3 is a lossy format, but our defaults are tuned to be visually indistinguishable for most files. You can raise the quality under Options.

Can I convert multiple MKV files at once?

Yes. Add up to 5 files at a time without an account, 10 with a free account and up to 500 on paid plans, then download them individually or as a single ZIP.

MKV→MP4 MP4→MP3 WAV→MP3 MKV→WebP MOV→MP3 MKV→MOV M4A→MP3 MKV→GIF WebM→MP3 MKV→WAV FLAC→MP3 MKV→WebM MKV→M4A MKV→AVI MKV→FLAC MKV→AAC MKV→OGG MKV→WMV MKV→Opus MKV→M4V MKV→FLV MKV→MPEG MKV→3GP MKV→WMA MKV→TS MKV→MPG MKV→AIFF MKV→AMR MKV→VOB MKV→M4B AAC→MP3 AVI→MP3 OGG→MP3 WMV→MP3 Opus→MP3 WMA→MP3 M4V→MP3 3GP→MP3 FLV→MP3 MPEG→MP3 AIFF→MP3 AMR→MP3 TS→MP3 MPG→MP3 M4B→MP3 MTS→MP3 VOB→MP3 M2TS→MP3 PNG→JPG JPG→PNG PNG→WebP JPG→WebP WebP→PNG WebP→JPG HEIC→PNG HEIC→JPG PNG→JPEG JPG→JPEG JPEG→PNG JPEG→JPG PNG→PDF JPG→PDF PDF→PNG PDF→JPG HEIC→WebP MP4→WebP PDF→DOCX DOCX→PDF JPEG→WebP WebP→JPEG PNG→GIF JPG→GIF GIF→PNG GIF→JPG MP4→MOV MOV→MP4 WebP→PDF HEIC→JPEG WebP→GIF GIF→WebP HEIC→PDF MP3→WAV JPEG→PDF PDF→JPEG SVG→PNG SVG→JPG HEIC→GIF MP4→GIF GIF→MP4 JPEG→GIF GIF→JPEG PNG→AVIF JPG→AVIF AVIF→PNG AVIF→JPG MP3→M4A GIF→PDF SVG→PDF PNG→SVG JPG→SVG PDF→SVG SVG→WebP MOV→WebP MP4→WAV MP4→WebM WebM→MP4 WebP→AVIF AVIF→WebP WebP→SVG SVG→JPEG MP4→MKV HEIC→AVIF MP4→M4A JPEG→AVIF AVIF→JPEG JPEG→SVG MOV→GIF GIF→MOV AVIF→PDF MP3→FLAC MP4→AVI AVI→MP4 MKV→MP3 GIF→AVIF AVIF→GIF SVG→GIF GIF→SVG WebM→WebP MOV→WAV XLSX→PDF CSV→PDF EPUB→PDF PDF→EPUB MOV→WebM WebM→MOV PNG→ICO JPG→ICO ICO→PNG ICO→JPG MP3→AAC WAV→M4A M4A→WAV MP4→FLAC MOV→MKV MOV→M4A DOCX→EPUB EPUB→DOCX CSV→DOCX PDF→TXT DOC→PDF TXT→PDF WebP→ICO ICO→WebP PPTX→PDF AVI→WebP WebM→GIF GIF→WebM SVG→AVIF MOV→AVI AVI→MOV

MKVMP3

Convert MKV to MP3

Free and private: MKV files are converted in your browser on computers; on phones, in our fast cloud and deleted automatically.

In your browser (fast cloud on phones)
No watermark
Batch & ZIP download

Need a smaller MKV? Compress MKV

How to convert MKV to MP3

1
Add your MKV files
Drag and drop MKV files onto the converter, paste them, or click to browse. You can add several at once.
2
Choose MP3
MP3 is already selected. Open Options if you want to change quality, size or metadata.
3
Convert
Click Convert. Your files are converted right in your browser in seconds.
4
Download your MP3
Download each MP3 file, or everything at once as a ZIP.

MKV vs MP3

From

MKV · Matroska Video

MKV is a flexible open container that can hold unlimited video, audio and subtitle tracks in nearly any codec.

Type: Video
Extension: .mkv
MIME: video/x-matroska
Best for: movies and series with multiple audio and subtitle tracks

Open standard

All MKV conversions →

MP3 · MPEG Audio Layer III

MP3 is the most compatible audio format in the world. Its lossy compression keeps music small enough to share while sounding close to CD quality.

Type: Audio
Extension: .mp3
MIME: audio/mpeg
Best for: music libraries, podcasts and audio for any device

Lossy compression

All MP3 conversions →

MKV to MP3: frequently asked questions

Free, private and in your browser