Convert MP3 to WAV
Decode an MP3 into an uncompressed 16-bit WAV for editors, samplers and phone systems.
Some software still insists on WAV: older audio editors and samplers, DJ and broadcast systems, CD-burning tools, phone-system greetings (IVR and on-hold messages), some game engines and lab equipment. They want plain PCM audio because it needs no decoder and can be cut at any sample. This converter decodes your MP3 and writes a standard 16-bit PCM WAV at the MP3's sample rate and channel count.
Be clear about what this does to quality: nothing, in either direction. The WAV contains exactly what the MP3 decoder produces, so the sound is the same, but the detail the MP3 encoder discarded does not come back. The file gets much bigger, around 10 MB per minute for 44.1 kHz stereo, because it is now uncompressed. If an application needs a particular format such as 8 kHz mono for telephony, note that this page keeps the original rate and channels; many phone systems convert on import.
The conversion runs in your browser with FFmpeg compiled to WebAssembly, which downloads once and is cached. ID3 tags, album art and other metadata are not written into the WAV. MP3 files up to 200 MB are accepted, and decoding is far faster than real time.
How to use it
- Drop the .mp3 file or click to browse.
- Click Convert; there are no settings, because WAV is uncompressed.
- Wait a few seconds (longer the first time, while the engine downloads).
- Download the WAV file and open it in your editor or system.
Frequently asked questions
Does converting MP3 to WAV improve the sound?
No. It produces an uncompressed copy of the decoded MP3. It is useful for compatibility, not for quality.
What WAV format is produced?
Linear PCM, 16-bit, little-endian, with the same sample rate and number of channels as the MP3 (usually 44.1 kHz stereo).
Why is the WAV ten times bigger?
MP3 compresses audio to about 128-320 kbps; PCM WAV stores 1,411 kbps for CD-quality stereo. The size increase is expected.
Are song titles and cover art kept?
No. WAV has limited tag support and metadata is removed during conversion.
Can I convert other formats to WAV?
Yes: the audio converter turns M4A, OGG, Opus, FLAC and more into WAV too.
Related tools
- Convert WAV to MP3Convert large WAV recordings into MP3s that are about ten times smaller.
- Convert audio files to MP3 and moreConvert M4A, OPUS, OGG, WAV, WebM, FLAC and more to MP3, WAV, M4A or OGG.
- Convert FLAC to MP3Convert lossless FLAC music to MP3 for phones, cars and players that do not read FLAC.
- Cut an audio fileCut a part of an MP3, M4A, WAV or other audio file on a waveform, with fade in and fade out.
- Compress an audio fileShrink audio files with a bitrate, mono and sample-rate choice, and see the expected size first.
- Make a ringtone from a songMake an iPhone (M4R) or Android (MP3) ringtone from any song, up to 30 seconds with fades.