Convert Matroska Video (.mkv) to Waveform Audio (.wav) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .mkv file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .wav file when it's ready.
WAV (Waveform Audio) stores uncompressed PCM audio, making it the universal standard for professional audio editing across every platform. Extracting audio from MKV to WAV gives you raw, unprocessed audio data that any DAW, audio editor, or production tool can import without codec concerns.
Professional audio workflows in film, television, music production, and game development universally accept WAV as their interchange format. When pulling audio from MKV video recordings for post-production work — whether it is dialogue editing, Foley synchronization, or music mixing — WAV is the safe format that never requires codec installation or causes compatibility surprises in any tool from Audacity to Pro Tools to Reaper.
WAV is also the required format for many distribution standards. CD mastering requires 16-bit 44.1 kHz WAV, broadcast audio standards (EBU R128) specify WAV as the delivery format, and most sample libraries (Kontakt, EXS24) expect WAV files. If your source audio is locked inside an MKV container, extracting to WAV makes it immediately usable in these professional contexts.
FFmpeg decodes the MKV audio stream (any codec) and outputs raw PCM samples in little-endian format within a WAV container. The default output is signed 16-bit integer PCM at the source sample rate, but 24-bit, 32-bit integer, and 32-bit float are also available. Multi-channel audio (5.1, 7.1) is preserved in the WAV output with standard channel ordering. WAV supports sample rates up to 4 GHz and file sizes up to 4 GB (or unlimited with WAV64/RF64 extensions).
WAV is uncompressed and lossless. The extracted audio is bit-identical to what the MKV source codec produces when decoded. If the MKV has lossless audio (FLAC, ALAC, TrueHD), the WAV is a perfect copy. If the MKV has lossy audio, the WAV contains the exact decoded samples with no additional loss. File sizes are approximately 10 MB per minute at 44.1 kHz stereo 16-bit.
| Device | MKV | WAV |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
MKV to WAV extraction produces the most universally compatible, unprocessed audio file possible — the blank canvas of audio formats.
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Fungerar overallt
| Native |
8MB free, 50MB Nitro
Valfri webblasare, valfri enhet
| Funktion | MKV | WAV |
|---|---|---|
| Fullstandigt namn | Matroska Video | Waveform Audio File Format |
| Filandelse | .mkv | .wav |
| Bast for | Multiple audio tracks | Lossless quality |