WMA to MP3 converter
Turn old Windows Media Audio files into MP3s that play everywhere.
or drop them here, or paste them
Nothing is uploaded.
This converter loads its engine (31 MB) from jsDelivr the first time. jsDelivr sees your internet address, never your file.
About WMA to MP3
WMA is Windows Media Audio, the format Windows Media Player used when ripping CDs, and of many voice recorders and music downloads from the 2000s. iPhones, Macs, many cars and most music apps can't play it. MP3 plays on all of them.
Your browser can't read WMA by itself, so this converter runs FFmpeg, the open-source audio and video tool, inside the page. On your first conversion it fetches FFmpeg's core, about 31 MB, from the public code library jsDelivr and keeps it, so it also works offline later. Your music never leaves your device.
Choose the quality: 128 kbps for speech, 192 kbps for most music, 320 kbps for the best MP3 quality. WMA is already compressed, so converting can't make it sound better than the original, but at 192 kbps or more you won't hear a difference.
Audio converts much faster than video: an album takes a few minutes. Drop several files at once and download the MP3s together as a ZIP. Copy-protected WMA files from old music stores can't be converted.
Questions and answers
Yes. Drop all the files at once; you can download the MP3s together as a ZIP.
That is FFmpeg, the program that reads WMA. It downloads once and your browser keeps it, so later conversions start at once.
Files with copy protection (DRM), common from old music stores, can't be decoded. You get a clear message instead of a broken MP3.