How do I convert WMA to MP3?

WMA (Windows Media Audio) is Microsoft's proprietary codec from 1999, the default output of Windows Media Player rips in the 2000s. Support outside Windows has always been weak and is shrinking — modern phones, Macs, and web apps often refuse WMA files. Converting to MP3 rescues these libraries into a format that will keep playing for decades.

Standard WMA (WMA 9) is lossy, typically 64–192 kbps. The conversion decodes it and re-encodes to MP3; choose 192 kbps or more to preserve what quality remains. WMA Lossless files also decode cleanly and can go straight to 320 kbps MP3 with excellent results. WMA Pro and Voice variants are handled by the decoder as well.

One hard limitation: WMA files bought from early-2000s music stores may carry Windows Media DRM. DRM-protected files are encrypted and cannot be converted by any tool — only files you ripped yourself or obtained DRM-free will work.

Reasons to convert WMA to MP3 usually come down to compatibility, file-size, or specific feature requirements. Common situations:

• An app or platform only accepts MP3 uploads.
• You need a feature unique to MP3 (e.g. lossless editing, chapter markers, smaller streaming size, etc.) that WMA doesn't provide.
• You're optimising file size — modern formats often produce smaller files than the older format you started with.
• You need a single archival format across a project so files behave consistently in the same viewer.

1. Open the WMA → MP3 tool on mp3.now.
2. Drag your WMA file onto the drop zone, or click Select files. You can drop a whole folder of files at once.
3. The output is fixed to MP3. If the format supports extra options (bitrate, sample rate, channels, volume normalization), tweak them in the options panel.
4. Click Convert. The job runs on our server and finishes in a few seconds for typical tracks.
5. Download the result. Files stay in storage for 24 hours and are then permanently deleted.

The entire flow is free for the first 10 jobs per day with no signup required. A free account doubles that quota; a premium plan removes the limit entirely.

• Use 192–256 kbps output — most WMA rips were 128–160 kbps and a higher MP3 bitrate avoids adding audible loss.
• DRM-protected WMA (from old music stores) cannot be converted; only DRM-free files work.
• If you still own the original CDs, re-ripping beats converting old lossy WMA rips.
• WMA Lossless sources convert to MP3 with no inherited artefacts — use 320 kbps.
• Convert your whole WMA library sooner rather than later; player support keeps disappearing.