Convert MP3 to WAV — Free & Private
Convert MP3 to WAV online for free. MP3 is the most widely-supported lossy audio format; WAV is an uncompressed, high-quality audio format. All processing happens locally in your browser — your files never leave your device.
How to convert MP3 to WAV
- 1
Select your MP3 file
Click or drag your MP3 file onto the converter above.
- 2
Convert to WAV
The output format is pre-set to WAV. Click the convert button to process your file.
- 3
Save instantly
Your converted WAV file is ready — save it to your device, no email required.
MP3 to WAV — FAQ
Is the MP3 to WAV converter really free?
Yes, completely free. No hidden fees, no watermarks, no file size limits. LocalConvert is open source and free forever.
Are my MP3 files safe?
Absolutely. Your files never leave your browser. All MP3 to WAV conversion happens using WebAssembly running locally on your device — no uploads, ever.
How long does MP3 to WAV conversion take?
Most conversions finish in seconds. Larger files may take a little longer depending on your device's speed and memory.
What's the difference between MP3 and WAV?
MP3 is the most widely-supported lossy audio format. WAV is an uncompressed, high-quality audio format.