Convert WMA to AAC Online Free
Convert WMA audio to AAC format for universal device compatibility. AAC is natively supported on iPhone, Android, and all major streaming platforms, making it the ideal cross-platform alternative to WMA.
ChangeThisFile converts your WMA to AAC using FFmpeg on secure servers. AAC is the dominant audio codec for Apple devices, Android, streaming services, and web browsers. Converting from WMA enables playback on iPhone, iPad, Android, Apple TV, and streaming platforms that don't support WMA. Files are auto-deleted after conversion, free with no signup.
Convert WMA to AAC
Drop your WMA file here to convert it instantly
Drag & drop your .wma file here, or click to browse
Convert to AAC instantly
WMA vs AAC: Format Comparison
Key differences between the two formats
| Feature | WMA | AAC |
|---|---|---|
| Developer | Microsoft | MPEG group (ISO/IEC) |
| Apple Native Support | No | Yes |
| Android Support | Limited | Native |
| Streaming Platforms | Limited | Apple Music, Spotify, YouTube |
| Browser Support | Poor | Variable (best on Safari) |
| Open Standard | No (proprietary) | Partially (MPEG standard) |
| DRM Ecosystem | PlayReady | FairPlay |
| Typical Quality | Good | Very good (efficient codec) |
When to Convert
Common scenarios where this conversion is useful
Apple device playback
iPhone, iPad, iPod, and Apple TV do not support WMA. Converting to AAC enables native playback on all Apple devices through the built-in Music app.
Streaming platform uploads
Platforms like Apple Music for Artists, SoundCloud, and Bandcamp accept AAC uploads. Convert WMA masters to AAC for distribution on streaming services.
Android universal playback
While some Android devices support WMA through third-party codecs, AAC is natively supported everywhere. Convert WMA to AAC for reliable Android playback across all devices and automotive systems.
Web audio compatibility
Convert WMA audio to AAC for use in web applications. AAC has wider browser support than WMA and works natively in Safari on macOS and iOS.
How to Convert WMA to AAC
-
1
Upload your WMA file
Click the upload area or drag and drop your WMA file. Files up to 50MB are supported and uploaded over an encrypted HTTPS connection.
-
2
Convert to AAC
Click Convert. FFmpeg decodes the WMA audio and re-encodes it using the AAC codec with high-quality settings for broad device compatibility.
-
3
Download your AAC file
Download the resulting AAC file when conversion completes. The file is automatically deleted from our servers after download.
Frequently Asked Questions
Yes. Both WMA and AAC are lossy codecs. Converting between them involves decoding and re-encoding, which introduces generation loss. Use high AAC bitrates (192-256 kbps) to minimize audible quality difference.
They produce comparable quality at equivalent bitrates. AAC has a slight efficiency advantage at very low bitrates according to most listening tests. The practical difference at typical bitrates (128-256 kbps) is negligible.
No. WMA files with Microsoft PlayReady DRM cannot be converted. Only DRM-free WMA files can be processed. Check that your WMA files are not DRM-protected before attempting conversion.
AAC is the audio codec; M4A is the container format that holds AAC audio. For Apple device compatibility, M4A is often preferred as it enables full iTunes metadata. This converter outputs AAC audio.
Yes. AAC is the native audio codec for all iPhone models. The converted AAC file will play in the Music app, can be synced via iTunes/Finder, and is compatible with AirPlay streaming.
Yes, mostly. FFmpeg transfers title, artist, album, and track number metadata from WMA to AAC format. Some Windows Media-specific attributes may not map to standard AAC metadata fields.
Yes. Both Spotify and Apple Music accept AAC audio files for artist uploads through their distribution portals. Ensure the bitrate meets their minimum requirements (typically 128+ kbps).
Yes. Files are uploaded over HTTPS, processed by FFmpeg, and automatically deleted after download. We do not retain or analyze your audio files.
Related Conversions
Ready to convert your file?
Convert WMA to AAC instantly — free, no signup required.
Start Converting