Convert MP3 to WAV
Convert your MP3s to uncompressed PCM WAV, the format editors and recording gear accept.
Your files never leave your device
How to convert MP3 to WAV
- 1
Upload the MP3
It stays on your device.
- 2
Convert
Decoded to 16-bit PCM WAV.
- 3
Download
Compatible with any editor.
Why use this tool
Worry-free editing
Many editors and mixers only take WAV.
Universal
16-bit PCM: the lowest common denominator of audio.
Private
The file never leaves your device: ffmpeg runs in your browser.
Real engine
ffmpeg, the industry standard, compiled to WebAssembly and self-hosted.
Frequently asked questions
Do I gain quality by converting to WAV?
No: quality already lost by MP3 cannot be recovered. WAV avoids LOSING more quality in later edits.
Why is the WAV so big?
WAV is uncompressed: roughly 10 MB per minute in stereo at 44.1 kHz.
Why does the first conversion take a moment to start?
On first use the ffmpeg engine (about 32 MB) is downloaded from this same site; it stays cached afterwards. The conversion itself depends on video length and your hardware.
Is there a size limit?
The site-wide limit is 250 MB per file, and above 100 MB we warn it may be slow: everything is processed in your browser memory.