Convert MP3 to WAV

Transform your the universal audio format into WAV format. Free, private, and browser-based.

How it works

  1. Upload MP3 Files — Drag and drop your MP3 files into the converter, or click to browse. Common sources: music downloads, podcast apps.
  2. Convert to WAV — The converter processes your files to WAV format entirely in your browser. No files are uploaded to any server — your privacy is guaranteed.
  3. Download Results — Download your converted WAV files instantly. For multiple files, download individually or as a ZIP archive.

Why convert MP3 to WAV

  • Import audio into professional DAWs (Pro Tools, Logic, Ableton) that prefer WAV
  • Prepare audio for CD burning which requires uncompressed WAV format
  • Use audio in video editing software that works better with WAV
  • Create a lossless working copy for audio editing and effects processing

FAQ

Is MP3 to WAV conversion free?
Yes, Fileza.io converts MP3 to WAV completely free with no limits on file size or number of conversions. No hidden fees, no watermarks, and no account required.

Will I lose quality converting MP3 to WAV?
No quality is lost. WAV uses lossless (uncompressed) compression, preserving all original data from your MP3 file.

Is it safe to convert MP3 to WAV online?
Absolutely. Unlike most online converters, Fileza.io processes your files entirely in your browser using WebAssembly. Your MP3 files are never uploaded to any server — the conversion runs on your own device, keeping your files 100% private.

Can I convert multiple MP3 files to WAV at once?
Yes, Fileza.io supports batch conversion. Drag and drop multiple MP3 files at once and they will all be converted to WAV simultaneously. Download them individually or as a ZIP archive.

Does MP3 to WAV conversion work on mobile?
Yes, the converter works on any device with a modern web browser — iPhones, iPads, Android phones, and tablets. No app installation required.

Will the converted WAV files be smaller or larger than MP3?
WAV files will be larger than the original MP3. This is because WAV uses lossless (uncompressed) compression which prioritizes quality over file size.

How long does MP3 to WAV conversion take?
Most conversions complete in seconds. The exact time depends on file size and your device performance. Since processing happens locally in your browser, faster devices convert more quickly. Longer audio files may take a few extra seconds.