Convert WMA to M4A Free
Convert WMA to M4A without paying a cent. No trial period. No account required. Just open the page and convert.
Drop your WMA file here or click to browse
WMA (.wma) · Max 20 MB
Most free converters add watermarks or throttle quality. AudioUtils does neither. You get the same output quality whether free or paid.
Free users get 5 conversions per month with a 10-second preview output. The conversion engine is identical to Pro — same speed, same quality, same privacy. Upgrade for full-length output.
Your files stay on your machine. Nothing is uploaded. Both WMA and M4A are lossy formats. Each re-encode can degrade quality slightly. Convert once and keep the result.
Frequently Asked Questions
Why not just convert WMA to MP3?
MP3 is more universally supported but produces larger files than M4A at the same quality. If you're moving to an Apple device or library (iPhone, iTunes, Apple Music), M4A is the native format and integrates better. If hardware compatibility (older car stereos, cheap MP3 players) matters more, MP3 is the safer pick.
What M4A bitrate should I use?
192 kbps (VBR or CBR) is the sweet spot for music — small files, transparent quality versus most WMAs. 256 kbps if your WMA is high-bitrate (192 kbps+) and quality matters. 128 kbps is fine for voice, audiobooks, and casual listening.
Will my WMA tags transfer?
Basic tags (title, artist, album, year, genre) transfer. WMA's extended tags (writer, content provider, station, etc.) may not map cleanly. For curated libraries, verify with Mp3tag or MusicBrainz Picard after batch conversion.
Does WMA Lossless convert any differently?
If your file is WMA Lossless (rare, but possible from old Windows Media Player rips), the conversion to M4A goes through PCM, then to AAC. You lose the lossless quality in the AAC encode, but you gain compatibility. Convert WMA Lossless to ALAC (Apple Lossless) or FLAC instead if quality matters most.
Will the M4A play on Windows too?
Yes. Windows Media Player on Windows 10/11 plays M4A natively, as do VLC, Foobar2000, MusicBee, and most Windows audio apps. M4A is a superset of compatibility versus WMA — you don't lose Windows playback by switching.
What about DRM-protected WMA?
Old WMA files purchased from MSN Music or similar services may have DRM. Browser-based converters cannot remove DRM — that requires playback through an authorised app on a registered device. If conversion fails on a specific WMA, DRM is the most likely cause.
About WMA
Windows Media Audio. Microsoft's format. Common on older Windows systems and devices.
About M4A
Apple's preferred audio format. Better quality than MP3 at same bitrate. Default for iTunes and Apple devices.