MKV to WAV Converter
Extract and convert the audio track from MKV (Matroska) video files to uncompressed WAV format. Powered by FFmpeg WebAssembly. Ideal for editing audio from MKV movies or shows in any DAW.
Drop your audio file here
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Complete Guide: MKV to WAV Converter
Everything you need to know about using this tool effectively
The MKV to WAV Converter extracts the audio track from Matroska MKV video files and outputs it as uncompressed WAV. MKV is a common container for movies, TV shows, and video recordings. Extracting to WAV gives you the full audio for editing or archival in any audio software. All conversion runs in your browser using FFmpeg via WebAssembly.
MKV (Matroska Video) is a flexible multimedia container that holds video, audio, and subtitle tracks. The audio track inside an MKV can be encoded in many codecs, commonly AAC, AC3, MP3, or DTS. Browsers cannot decode MKV containers natively, so this tool uses FFmpeg to extract and decode the audio track and output it as standard PCM WAV.
Extract music from MKV movies
Extract and save the audio soundtrack from an MKV movie file as WAV for editing, remixing, or archiving.
Get audio from downloaded video lectures
Convert MKV video lectures to WAV audio to listen on portable devices or import into note-taking and transcription tools.
Edit MKV audio in a DAW
WAV is the standard working format for digital audio workstations. Extract the MKV audio track to WAV for editing in Audacity, Logic Pro, or Reaper.
Transcribe MKV video content
Extract the audio from MKV recordings to WAV for use with speech-to-text software or transcription services that accept audio files.
Archive TV episode audio
Extract and save dialogue or music from MKV TV recordings as WAV for archival or re-use in other projects.
Upload MKV file
Click to browse or drag and drop your MKV file into the upload area.
Wait for FFmpeg to load
On first use, the FFmpeg WebAssembly binary loads from a CDN. This takes a few seconds. Subsequent conversions are immediate.
Convert
Click Convert to WAV. FFmpeg extracts the first audio track from the MKV and outputs it as 16-bit PCM WAV.
Download WAV
Download your WAV file for use in any audio editor or media player.
Only the first audio track is extracted. MKV files with multiple language audio tracks will yield the default track.
Large MKV files take longer to process in the browser. For very large files, a desktop FFmpeg installation is faster.
WAV files are much larger than the source audio in an MKV. Allow extra disk space.
For distribution, convert the extracted WAV to MP3 or AAC after editing.
The video track is discarded entirely. Only audio is extracted.
Why is the output only stereo even if the MKV has surround sound?
Multichannel audio (5.1 surround) is downmixed to stereo during conversion. Individual surround channels are not preserved as separate tracks.
Does the conversion preserve the original audio quality?
The WAV output is lossless relative to the decoded audio. If the MKV audio track is AAC or MP3 (lossy), that quality level is preserved without further loss. If the track is lossless (FLAC or PCM), the WAV is bit-perfect.
Are my files uploaded to a server?
No. FFmpeg runs in your browser via WebAssembly. Your files are processed locally and never sent to any server.
Why does the first conversion take longer?
The first conversion loads the FFmpeg WebAssembly binary. This takes a few seconds. Subsequent conversions are immediate.
Can I extract a specific audio track from an MKV with multiple tracks?
This tool extracts the first (default) audio track. To select a specific track from an MKV with multiple audio tracks, use a desktop tool such as MKVToolNix.