Convert AUDIO to MP3, Free
Files convert instantly in your browser. 100% private, any file size, no account needed.
Drop your AUDIO file here
or click to browse. Any file size.
Conversion runs entirely in your browser. Your file never leaves your device.
How to convert AUDIO to MP3
Not every audio format plays everywhere. FLAC, OGG, M4A, AIFF, WAV, AMR, and dozens of other containers each have specific players and devices that support them, while MP3 works on practically everything built in the last 25 years: phones, cars, smart speakers, game consoles, and browsers. Converting any audio file to MP3 solves the compatibility problem permanently.
This converter handles whatever audio file you upload directly in your browser using WebAssembly, without sending anything to a server. That means no upload time, no file size cap from a server, and no privacy risk from your audio being stored on someone else's infrastructure. You pick the bitrate, and the browser does the work.
Upload your audio file
Drop any audio file onto the page: WAV, FLAC, OGG, M4A, AAC, AIFF, AMR, WMA, and others are all accepted. The converter reads the format automatically.
Set the MP3 bitrate
128 kbps is a good general choice for music. 64 kbps is sufficient for podcasts and voice recordings. 320 kbps delivers the highest quality for critical listening but creates larger files.
Convert locally
WebAssembly decodes the source audio and re-encodes it as MP3 inside your browser tab. No internet connection is needed after the page loads.
Download the MP3
Click download when the conversion finishes. Test the file in your target player or device before deleting the original, especially if you are converting a lossless source you cannot easily regenerate.
Frequently asked questions
Will converting from FLAC or WAV to MP3 reduce audio quality?
Yes, because MP3 is a lossy format. The encoder discards audio information that psychoacoustic models predict you will not notice, but it is not a perfect copy of the original. At 320 kbps the difference is inaudible in most listening tests, but the source data is not preserved exactly.
My audio file is a .m4a from an iPhone. Will it convert correctly?
Yes. M4A files contain AAC audio inside an MPEG-4 container. The converter decodes the AAC stream and re-encodes it as MP3. The conversion introduces a small amount of quality loss because you are going from one lossy format to another.
Is the audio file uploaded to a server?
No. The entire conversion runs in your browser via WebAssembly. Nothing is uploaded anywhere.
Why does my converted MP3 sound slightly different from the original?
MP3 encoding applies perceptual compression that removes low-energy audio detail below the masking threshold of louder sounds. This is most noticeable on quiet passages after loud transients, complex high-frequency content, and very quiet sounds. Using a higher bitrate reduces the difference.
Can I convert a DRM-protected M4P or WMA file?
No. DRM-protected files are encrypted and the converter cannot decode them. Only unprotected audio files can be converted.