Convert WMV to M4A Online Free
Extract the audio from your WMV Windows Media Video and save it as M4A — Apple's native AAC audio format. Great for bringing Windows video audio into Apple Music, iPhone, and the Apple ecosystem.
ChangeThisFile extracts audio from your WMV Windows Media Video and encodes it as M4A using FFmpeg on our secure servers. M4A is Apple's native audio container for iTunes and Apple Music, compatible with all Apple devices. Files are auto-deleted, free with no signup required.
Convert WMV to M4A
Drop your WMV file here to convert it instantly
Drag & drop your .wmv file here, or click to browse
Convert to M4A instantly
WMV vs M4A: Format Comparison
Key differences between the two formats
| Feature | WMV | M4A |
|---|---|---|
| Type | Microsoft proprietary video | Apple MPEG-4 audio container |
| Developer | Microsoft | Apple / MPEG-4 standard |
| Audio codec | WMA (Windows Media Audio) | AAC (Advanced Audio Coding) |
| Apple compatibility | Not natively supported on iOS/macOS | Native on all Apple platforms |
| File size | Moderate (video included) | Small — AAC audio only |
| Metadata | Windows Media tags | iTunes tags: artist, album, cover art, lyrics |
| Use case | Windows video playback | Apple Music, iPhone, GarageBand, iTunes |
When to Convert
Common scenarios where this conversion is useful
Import WMV audio into Apple Music
WMV is not supported by Apple Music or iTunes. Converting the audio to M4A allows you to import Windows Media Video content directly into your Apple Music library with full iTunes metadata support.
Transfer Windows video audio to iPhone
WMV files do not play on iOS. Extract the audio as M4A to listen to content from Windows-format videos on your iPhone through the Music app or Files app without any additional apps.
Convert WMV training video audio for Apple devices
Corporate training and educational content in WMV format is common in Windows environments. Extract audio as M4A to make it accessible on Mac, iPhone, and iPad used by employees in Apple-centric environments.
Use WMV audio in GarageBand on Mac
GarageBand natively imports M4A. Convert WMV video recordings (presentations, interviews, performances) to M4A to import them directly into GarageBand for podcast editing or music production.
Create iPhone ringtones from WMV audio content
Extract audio from a WMV file as M4A, rename to .m4r, and import into iTunes to create custom iPhone ringtones from Windows-format video content. Ensure the clip is under 40 seconds.
How to Convert WMV to M4A
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1
Upload your WMV file
Drag and drop your .wmv file onto the converter or click to browse and select it. Files up to 500MB are supported.
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2
Server-side M4A conversion
Your WMV is uploaded over HTTPS and FFmpeg extracts and decodes the WMA audio, encoding it as AAC in an M4A container. The video stream is discarded. Processing completes in seconds.
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3
Download your M4A file
Click Download to save the .m4a file. The original WMV and M4A are automatically deleted from our servers after download.
Frequently Asked Questions
No. iTunes and Apple Music do not support WMV or WMA. Converting the audio to M4A creates an Apple-native file that iTunes and Apple Music recognize and import without any additional software.
Yes. WMA and AAC are both lossy codecs. Converting from WMA to AAC (M4A) involves re-encoding with a small additional quality reduction. At high target bitrates (192 kbps+), this difference is typically minimal.
FFmpeg encodes AAC at a high variable bitrate by default, typically 192 kbps VBR. This provides excellent quality for music, speech, and general content.
Yes. M4A is supported natively on Android alongside iOS. Most Android music apps including VLC, Poweramp, and the default player support M4A.
Yes. GarageBand on iPad and iPhone supports M4A. Import the file via the Files app or GarageBand's Media Browser for direct use in your project.
Yes. M4A uses iTunes metadata supporting artist, album, title, year, genre, cover art, lyrics, and more. WMV metadata is Windows-centric and not as rich. M4A is the better format for organized music libraries.
Yes. ChangeThisFile is completely free. No signup, no limits, and no fees.
DRM-protected WMV files cannot be converted by our service. FFmpeg requires access to the unprotected audio stream. Only non-DRM WMV files can be extracted to M4A.
Typically just seconds to under a minute. Only the audio is processed — the video is discarded, making conversion much faster than full video transcoding.
Yes. All uploads are HTTPS-encrypted and files are deleted from our servers immediately after conversion. We never retain or access your content.
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