WMA to MP3
Free legacy Windows Media converter
Drop an old WMA file (voicemail export, ripped CD, legacy Windows Media archive) and get a universal MP3 that any modern device or player will open.
Drop your .wma file
or click to browse
Max 25 MB · .wma only
How WMA to MP3 conversion works
Conversion preview
Why use Mictoo for WMA to MP3?
When WMA to MP3 is useful
Tips for clean WMA to MP3
- DRM-protected WMA (old Windows Media Player rentals) cannot be decoded.
- Very low-bitrate WMA (voicemail) will sound the same as source.
- Old WMV video is not supported here; use MP4 to MP3 instead.
- For recordings over 25 MB, trim or split the source before uploading.
What happens during conversion
We extract the audio from your WMA and encode it as MP3.
WMA vs MP3
| File type | Typical size | Best use |
|---|---|---|
| WMA | Small | Legacy Windows workflows (deprecated) |
| MP3 | Small | Universal compatibility, modern devices |
Find out which WMA you have
WMA is four different codecs under one extension, and they do not all behave the same. ffprobe file.wma tells you which one in a second.
- WMA Standard
- Lossy. CD rips and downloads from the 2000s. The common case
- WMA Pro
- Lossy, higher bitrate, multichannel. Poorly supported outside Windows
- WMA Lossless
- Rare, from careful CD ripping. Converting it to MP3 is a first-generation quality drop
- WMA Voice
- Very low bitrate speech. Old voicemail, dictation and call-recording systems
DRM is the one case with no path
Windows Media DRM, sold as PlaysForSure and Janus, shipped with subscription stores like Napster To Go, Yahoo Music Unlimited and Zune Pass. ffmpeg cannot decode it, and neither can we.
- How it shows up
- The file plays only on the machine that licensed it, or asks for a license that no longer exists
- How to confirm
- Right-click in Windows Explorer, Properties, and look for a license or DRM tab
- Why no tool fixes it
- The audio is encrypted. There is nothing to decode without the key
- Ripped from your own CDs?
- No DRM. Those convert normally
Why bother converting at all
WMA lost. Nothing outside the Windows ecosystem reliably plays it any more.
- Apple
- Never supported WMA. No iPhone, no iPad, no macOS out of the box
- Android
- Dropped dependable WMA support years ago
- Car head units
- Most index MP3 from USB and skip WMA entirely
- If you still have the CDs
- Re-rip to MP3 or FLAC from the disc. Lossy to lossy is always second best
Frequently asked questions
Is the WMA to MP3 converter free?
Yes. Files up to 25 MB can be converted without an account, and the output has no watermark.
Why do modern players refuse to open WMA?
Apple never supported WMA. Some Android players dropped it. WMA is a legacy Microsoft format that Windows itself has been moving away from.
Can you convert DRM-protected WMA?
No. Old Windows Media Player rentals used DRM that ffmpeg cannot decode. We never bypass copyright protection.
Are files stored?
No. Uploaded WMA is dropped after conversion; the MP3 is purged within the hour.
What about WMA lossless?
The converter reads WMA lossless too, but the output is still 128 kbps MP3 (lossy). For lossless output, convert to WAV instead.