Free MP3 to WAV Converter
A MP3 to WAV converter that actually works. No bundled malware. No shady installs. Open your browser and convert.
Drop your MP3 file here or click to browse
MP3 (.mp3) · Max 20 MB
Desktop converters require downloads. Online converters upload your files to unknown servers. AudioUtils does neither. It runs WebAssembly in your browser tab.
The conversion is fast. A typical 5-minute audio file converts in under 3 seconds. No progress bars that stall at 99%.
MP3 is lossy. Converting to WAV won't restore lost data, but gives you an uncompressed container for editing workflows. Works on Chrome, Firefox, Safari, and Edge. Any device, any OS.
Frequently Asked Questions
Does converting MP3 to WAV improve quality?
No. MP3 is lossy — once compressed, the discarded data can't be recovered. Converting to WAV gives you an uncompressed container, but the audio quality stays the same as the source MP3. It's useful for compatibility with audio editors that require WAV.
How long does MP3 to WAV conversion take?
Seconds. The conversion runs entirely in your browser using WebAssembly. No upload, no server processing, no waiting.
Will the WAV file be larger than the MP3?
Yes, significantly. A 5MB MP3 file typically becomes a 50MB WAV file. WAV is uncompressed, so file sizes are roughly 10x larger.
Is this converter free?
Yes. Free users get 5 conversions per day with a 20MB file size limit. Need more? Upgrade to Pro for unlimited conversions.
About MP3
The most widely used audio format. Great compatibility, small file size. Ideal for music, podcasts, and general use.
About WAV
Uncompressed audio format. Perfect quality with no data loss. Standard for music production and professional audio work.