WMA to MP3
Convert WMA to MP3 online, free — right in your browser. Nothing is uploaded.
Everything ran in your browser — nothing was uploaded.
How to use the WMA to MP3
- Drop in your WMA file (or any audio file).
- The output is already set to MP3 — pick a bitrate if you like.
- Click Convert and download your MP3 file.
About the WMA to MP3
WMA to MP3 converts WMA audio into MP3, right in your browser. WMA is Microsoft's older Windows Media format — less common today, but still turns up in old music libraries ripped on Windows. MP3 is the most universal audio format — it plays on virtually every phone, car stereo, browser and app, which is why it is still the safest choice for sharing.
Handy for old Windows Media files that modern phones and Macs simply will not touch. Both formats are compressed, so pick a higher bitrate (192–320 kbps) to stay as close to the original as possible — converting cannot add back quality that lossy compression already removed. Everything runs on your device with a WebAssembly build of ffmpeg, so your file is never uploaded — it is private, free and has no watermark. The audio engine is downloaded once (shared with the other audio and video tools) and then cached, so repeat conversions start quickly.
Frequently asked questions
Is my WMA file uploaded?
No. The conversion runs entirely in your browser with ffmpeg (WebAssembly). Your file never leaves your device.
Will I lose quality converting WMA to MP3?
Both formats are compressed, so pick a higher bitrate (192–320 kbps) to stay as close to the original as possible — converting cannot add back quality that lossy compression already removed.
What bitrate should I choose?
For MP3, 192 kbps is a good balance and 320 kbps is near-transparent. Lossless targets (WAV, FLAC, AIFF) ignore bitrate and keep full quality.
Can I convert more than one file?
Convert them one after another — each stays private on your own device, with nothing uploaded.