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Convert MP3 to WAV

Convert MP3 files to uncompressed WAV for audio editing, DJ software, phone systems and hardware that does not read MP3.

Your files never leave your device. Everything runs in your browser.

How it works

  1. Add audio filesDrop the files; the format is already set.
  2. Adjust qualityChange the quality or choose mono if you need.
  3. DownloadDownload one by one or as a ZIP.

When you need WAV

Some software and devices only accept WAV: older samplers and keyboards, phone system prompts, certain DJ and broadcast tools, and speech recognition services that want uncompressed audio. Converting MP3 to WAV decodes the audio once, so further editing adds no generation loss.

The WAV file keeps the sample rate of the MP3 and is written as 16 bit PCM. Choose Mono for voice prompts to halve the file size.

Note on quality

WAV cannot restore detail that MP3 compression removed; it only stops further loss. Expect files about ten times larger than the MP3.

About MP3

MP3 is the classic compressed audio format, supported by practically every device and app.

About WAV

WAV is uncompressed audio: large files, no further quality loss and opened by every editor.

Frequently asked questions

Will MP3 to WAV improve the sound?

No. It keeps the current quality and avoids further loss when editing.

How good is the MP3 quality?

MP3 files are made with the open source LAME encoder (lame.sourceforge.io). At 192 kbit/s most listeners cannot tell them from the original; choose 256 kbit/s for music archives.

Does converting improve quality?

No. Converting a compressed file to WAV keeps its current quality but cannot restore what was lost.

Are my files uploaded?

No. Everything happens in your browser.

Which input formats work?

MP3, WAV, M4A, AAC, OGG, Opus, FLAC and WebM audio.