Drop in a MP3 file and get a WAV back in seconds. Free, no account, and nothing is kept on our server.
Convert audio files between MP3, WAV, FLAC, AAC, OGG, Opus, and more. Extract audio from video. Powered by FFmpeg — free, no installation.
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Supported formats: MP3, WAV, FLAC, AAC, OGG, OPUS, WMA, M4A, AIFF, AC3, AIFF, AMR
Also: MP4, MKV, AVI, MOV (extracts the audio track) · Max 512 MB
Editors, DAWs and transcription tools frequently refuse compressed input, so a WAV copy is often the only way to get an MP3 into the software you need. Be clear about what this does and does not do: it removes the barrier, not the compression damage.
MP3, formally MPEG-1 Audio Layer III, was standardised in 1993 after years of work at Fraunhofer IIS. It discards sound the ear is unlikely to notice, which is how a three-minute track fits into a few megabytes instead of thirty. Nothing else comes close to its reach: every phone, browser, car stereo and cheap player made in the last two decades reads it. That universality, not sound quality, is why it is still the safe default today.
WAV stores raw PCM samples with no compression whatsoever. Nothing is thrown away when the file is written and nothing is reconstructed when it is played, so editors, mastering chains and speech-recognition tools expect it. The price is size: CD-quality stereo runs at 1411 kbit/s, roughly 10 MB for every minute of audio.
| MP3 | WAV | |
|---|---|---|
| Released | 1993 | 1991 |
| Developed by | Fraunhofer IIS / MPEG | Microsoft and IBM |
| Compression | lossy | uncompressed |
| Typical bitrate | 128-320 kbit/s | 1411 kbit/s (CD) |
| Three-minute track | 3-7 MB | about 30 MB |
| Quality ceiling | Good, not transparent | Exactly the source |
| Best suited to | Sharing, phones, car stereos | Editing, mastering, speech tools |
| Playback support | Universal | Universal on desktop |
No further quality is lost, but none is gained either. MP3 already discarded detail when it was created; the WAV file preserves what survived, at roughly five times the size. Anyone promising that this restores lost quality is selling something.
A normal song finishes in a few seconds. Conversion runs on our server rather than in your browser, so the slow part is usually the upload, not the work itself. Long recordings such as lectures or podcasts take proportionally longer.
Your file is uploaded to our server because the conversion runs there. A cleanup task runs every hour and deletes anything older than an hour, so nothing you upload survives more than about two hours. We do not open your files, we do not keep copies, and no account is needed to use the converter.