Audio Tools
MP3 to WAV Converter
Convert MP3 audio files to WAV format directly in your browser. 100% client-side — your file never leaves your device.
Runs entirely in your browser — your audio never leaves this device
Private & client-side
Your audio files are processed locally in your browser whenever supported. Files are not uploaded to our servers.
Drop your audio file here
or click to choose from your device
Choose Audio FileMP3 to WAV: when you need uncompressed audio
MP3 is ideal for listening and sharing because it is small, but many audio editors, video editors, DJ software, hardware samplers and telephone systems work best with — or only accept — uncompressed WAV files. Converting MP3 to WAV decodes the compressed audio into plain PCM samples with a standard WAV header.
The conversion happens in your browser, and the result is a genuine WAV file, not a renamed MP3.
Common uses
Audio and video editing
Import WAV into editors that handle it more smoothly than MP3.
Samplers and hardware
Load sounds into devices that only read WAV.
Phone systems
Prepare on-hold music or greetings for systems that require WAV.
Burning audio CDs
Some disc-burning software expects WAV input.
Does WAV improve the sound?
No. The audio quality stays exactly as it was in the MP3 — conversion cannot bring back detail that MP3 compression removed. What you gain is a format that will not lose any more quality when edited and saved.
Expect much larger files
Uncompressed audio takes roughly 10 MB per minute for CD-quality stereo, around ten times more than a typical MP3.
Questions
Frequently asked questions
Is the MP3 to WAV converter free?
Yes. It is completely free, with no sign-up and no limits.
Are my audio files uploaded to a server?
No. Your MP3 is decoded and re-encoded into WAV entirely in your browser. The file never leaves your device.
Is this a real WAV file or just a renamed MP3?
It is a real WAV file. The MP3 is decoded into raw PCM audio and written with a valid WAV header, so the output is a genuine, playable WAV.
What input formats are supported?
This tool accepts MP3 files. For other formats, try the Audio Cutter or the WAV to MP3 converter.