ABMatch is a free, browser-based tool that lets you compare multiple audio tracks side by side — with one crucial difference from just pressing play on each file: it automatically matches the loudness of every track to the same level. Why does that matter? Because louder always sounds better to human ears. If you're comparing two versions of a mix and one is even slightly louder, your brain will instinctively prefer it not because it sounds better, but simply because it's louder. ABMatch removes that bias entirely. Every track you load is measured and adjusted to the same perceived volume, so you're comparing quality, not quantity.

Your audio files never leave your device. Everything happens locally in your browser, using the same technology that powers professional desktop apps. No uploads, no servers, no accounts.