Mixing vs Mastering: What's the Difference?
Updated June 2026 · by Loopin
"Mixing" and "mastering" get used interchangeably, but they're two different jobs. Getting the distinction right is the difference between a track that sounds amateur and one that sounds finished.
What mixing does
Mixing works on the individual tracks inside a song — vocals, drums, bass, synths. The mixer balances levels, pans instruments across the stereo field, carves space with EQ, controls each part with compression and adds effects like reverb and delay. The output of mixing is a single stereo file: the mixdown.
What mastering does
Mastering works on that finished stereo file as a whole. It balances the overall tone, controls the dynamics so quiet and loud sections sit together, sets the stereo width, raises the loudness to a streaming target, and caps the true peak so nothing clips on playback. Mastering makes the song translate everywhere — earbuds, car, club — and sound consistent next to commercial releases.
The order
Mix first, master last. You can't master your way out of a bad mix — if the vocal is buried or the low end is muddy, that's a mixing fix. Master only when the mix sounds right on its own and has a little headroom (peaks around −3 to −6 dB).
Do I need both?
Yes — even a great mix benefits from mastering, and a loud master can't fix a weak mix. The good news: while mixing takes skill and time, mastering can be done in seconds with the right tool. Loopin Mastering handles the mastering chain for you — EQ, multiband compression, stereo and a true-peak limiter — free and in your browser.
Try it now: open the free Loopin Mastering tool — drop in an MP3 or WAV, pick a feel, and download a streaming-ready master. Nothing leaves your device.