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MP3 to WAV — Convert Free Online

Convert MP3 files to lossless WAV format for editing and professional use. Instantly. No sign-up required.

Drop your MP3 file here

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Accepted formats: MP3

Max file size: 100 MB (single file)

Your files never leave your device

Trim the audio?

Cut to the exact segment you need

How to mp3 to wav

  1. 1.Upload your MP3 file using the drop zone above
  2. 2.Click "Convert to WAV" to start the conversion
  3. 3.Download your WAV file

About This Tool

WAV is the standard uncompressed audio format used in music production, video editing, and professional audio work. Our free mp3 to wav converter decodes your MP3 file and saves it as a PCM WAV file, ready for any audio editor or DAW.

While converting from MP3 to WAV will not restore audio data that was lost during MP3 encoding, it does give you an uncompressed file that is compatible with virtually all professional audio software and avoids any further quality degradation from repeated lossy compression.

All processing runs in your browser via FFmpeg.wasm. Your files are never uploaded anywhere. No watermarks, no limits, no account needed.

Frequently Asked Questions

No. MP3 to WAV conversion decodes the compressed audio to an uncompressed format, but it cannot restore data that was discarded during MP3 encoding. The WAV file will sound identical to the MP3 — just in an uncompressed container.

WAV files are required by many audio editors and DAWs. Converting to WAV also prevents further quality loss if you need to edit and re-export the audio.

WAV is uncompressed. A 5 MB MP3 file may become 30-50 MB as WAV. This is normal — you are trading space for universal compatibility and edit-friendliness.

No. All conversion happens locally in your browser using WebAssembly. Your files never leave your device.

The output WAV file matches the sample rate of the input MP3 — typically 44.1 kHz for music. No resampling is applied.

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