Add your WMV file
Drop one or more .wmv files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
WMV to WAV
Pulling the soundtrack out of a .wmv video into .wav audio keeps what you can hear and drops the picture entirely. Free, private, and validated — the file never leaves your browser.
100% private for supported formats
Runs on your deviceConvert supported files
Drop WMV files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting Windows Media video to WAV audio
Pulling the soundtrack out of a .wmv video into .wav audio keeps what you can hear and drops the picture entirely. A .wmv file contains Windows Media Video, Microsoft's proprietary codec family, almost always wrapped in an ASF container. The extension was everywhere on Windows XP-era PCs, from downloaded clips to Movie Maker exports, but it has faded as MP4 became universal.
A .wav file is Microsoft's Waveform Audio format, which in practice almost always stores uncompressed PCM samples. Because every bit of the original signal is preserved and no decoding is required, .wav remains the default working format in recording studios and audio editors. For this route the practical draw is bit-perfect with zero generation loss and negligible CPU cost to read or write — balanced against enormous compared with FLAC, which halves the size losslessly, which is worth knowing before you commit a large batch.
Why convert WMV to WAV?
The usual reason to take .wav audio out of a .wmv file is that only the sound matters — a talk, interview, song, or podcast segment. Keeping the video stream would waste storage, and a dedicated audio file is easier to trim, tag, and play. On the source side, effectively abandoned by Microsoft itself; on the target side, the payoff is bit-perfect with zero generation loss, which is exactly what you want for capturing and mixing sessions in a DAW.
WMV vs WAV at a glance
| Aspect | Windows Media video (.wmv) | WAV audio (.wav) |
|---|---|---|
| Format type | Container — quality depends on the codecs and settings inside | Lossless — every pixel or sample is preserved exactly |
| How it stores data | aSF container carrying WMV1, WMV2, or WMV3 (VC-1) video, typically with WMA audio | a RIFF chunk container whose fmt chunk usually declares linear PCM, though compressed codecs are technically permitted |
| Strongest at | playing old Movie Maker projects and family archives | capturing and mixing sessions in a DAW |
| Weak spot | effectively abandoned by Microsoft itself | enormous compared with FLAC, which halves the size losslessly |
| Metadata | aSF content-description attributes hold title, author, copyright, and rating fields, plus extended attributes used by Windows Media Player libraries | rIFF INFO chunks hold basic tags, while the Broadcast Wave bext chunk and iXML add description, originator, and timecode for production workflows; some tools also embed ID3 chunks |
Pick WAV as the output
Select .wav in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if WAV is selectable, the route is real and validated.
Convert on your device
Press Convert. A WebAssembly FFmpeg build demuxes the audio track and re-encodes it locally; the video stream is simply discarded.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid WAV file. Outputs keep the original filename with the .wav extension.
WMV to WAV questions, answered
Will converting WMV to WAV lose quality?
Since wmv is container-oriented and wav is lossless-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .wav itself requires.
Is it private to convert WMV files here?
Yes — the .wmv file is processed inside your browser tab and never uploaded. A WebAssembly FFmpeg build demuxes the audio track and re-encodes it locally; the video stream is simply discarded. Close the tab and the file is gone from memory.
Where will the WAV file work?
Windows, macOS, Linux, iOS, Android, and all major browsers play .wav natively. Recordings that exceed 4 GB require the RF64 variant, which some consumer software fails to recognize.
Will the WAV file be bigger or smaller than my WMV?
Much smaller — the video stream is usually 80–95% of a .wmv file's weight, and it is discarded entirely. The remaining audio is re-encoded at the bitrate implied by your quality setting.
What happens to the metadata in my WMV file?
This converter strips container metadata deliberately (the FFmpeg command runs with metadata mapping disabled) so exported files do not leak recording details. In the source, aSF content-description attributes hold title, author, copyright, and rating fields, plus extended attributes used by Windows Media Player libraries; none of it is transmitted anywhere because the file never leaves your browser.