MP3 is a lossy compressed format that saves space by discarding inaudible detail; WAV is a lossless format that keeps every sample. Converting MP3 to WAV restores the full PCM waveform for editing, so you get a larger file but no further quality loss in the output.
| MP3 | WAV | |
|---|---|---|
| Quality | Good (lossy) | Perfect (lossless) |
| File size | Small (~1/10 of WAV) | Very large (uncompressed) |
| Compression | Lossy | None |
| Compatibility | Universal — plays everywhere | Universal but takes space |
| Best for | Everyday listening & sharing | Editing, DAWs & mastering |
Yes - completely free with no limits. Conversion runs in your browser with no server costs.
No. Decoding and encoding happen locally in your browser - files never leave your device.
No - the detail lost in the original MP3 compression cannot be recovered. WAV output preserves the MP3 quality exactly without adding new loss.