Convert
Audio converter
Decode MP3, WAV, OGG, AAC, M4A or FLAC and export uncompressed WAV. Trim to the section you want and adjust the level before exporting.
Drop a file to start.
The converter needs JavaScript, because the conversion itself runs on your own device rather than on a server. Enable JavaScript to load it.
Why WAV is the only output
Browsers ship decoders for most common audio formats, which is why so many can be opened here. They do not ship encoders. The Web Audio API gives a page raw PCM samples, and WAV is a thin container around exactly that, so it can be written directly in a few lines of code. MP3, OGG and FLAC each need a real encoder, which means either a multi-megabyte download or a server. Neither belongs in a tool that promises your audio stays on your device, so those outputs are not offered rather than offered and broken.
Good uses for WAV
Editing masters
WAV is lossless, so it is the right intermediate format when the file is going into an editor or a DAW.
Sampling and games
Most audio engines and sampler instruments read WAV directly without an extra decode step.
Transcription
Speech tooling generally prefers uncompressed PCM input for the best accuracy.
How it works
- 1
Add your file
Drag it in, click to browse, or paste from the clipboard.
- 2
Choose the output
Pick a format, then open Settings to fine-tune quality, size or trim points.
- 3
Download
The finished file is prepared on your device and offered as a download.
Frequently asked questions
Can I convert to MP3?
No. No browser provides an MP3 encoder to web pages, so an MP3 export would require either a large encoder download or uploading your audio to a server. Neither fits how this site works.
Why is the WAV file so much bigger than the original?
WAV is uncompressed. A three-minute stereo track at 44.1 kHz is roughly 30 MB regardless of how small the compressed original was. That is expected, not a fault.
Can I convert just part of a track?
Yes. The start and end controls in Settings trim the export to any section, and the volume control scales the level.
Which input formats work?
MP3, WAV, OGG, AAC, M4A and FLAC, subject to what your browser decodes. Chrome and Firefox cover all of them; Safari's FLAC and OGG support varies by version.