MP3 vs WAV
MP3 and WAV sit at opposite ends of the audio spectrum. MP3 is lossy and compressed, producing tiny files perfect for listening and sharing. WAV is uncompressed and lossless, preserving full studio quality at the cost of large files.
Use MP3 for listening, sharing, streaming, and storing large music libraries — small files, good-enough quality. Use WAV for recording, editing, and mastering, where uncompressed audio preserves every detail for professional work.
MP3 vs WAV: side-by-side comparison
| Attribute | MP3 | WAV |
|---|---|---|
| Compression | Lossy | Uncompressed (lossless) |
| File size | Small (~1MB/min) | Large (~10MB/min) |
| Quality | Good for listening | Full original fidelity |
| Editing | Degrades on re-save | Ideal for editing |
| Compatibility | Universal | Universal |
| Best for | Playback, sharing | Recording, mastering |
What is MP3 and what is WAV?
MP3
MP3 uses lossy psychoacoustic compression to discard sound the ear is least likely to notice, shrinking files roughly 10x. At higher bitrates it sounds excellent for casual listening, but each re-encode loses more detail, so it is poor for editing.
WAV
WAV stores raw, uncompressed PCM audio — exactly what was recorded, bit for bit. It is the gold standard for recording, editing, and mastering because there is no quality loss, but the files are large and impractical for everyday playback or streaming.
When to use which
Choose MP3
Choose MP3 for music libraries, podcasts, sharing, and streaming where small size and broad compatibility matter most.
Choose WAV
Choose WAV when recording or editing audio in a DAW, mastering tracks, or archiving original recordings at full quality.
Convert between these formats
Use our free, browser-based converters: