ABMatch is a sleek, privacy-focused audio tool that allows you to instantly and fairly compare the loudness of two audio tracks. Whether you’re a musician deciding between two mixes, a mastering engineer refining the final version of a song, or simply curious about how your audio stacks up—this tool gives you a fast, intuitive way to hear the difference. You can switch seamlessly between two audio files at the click of a button, helping you make objective decisions based on sound quality, not volume differences.

Designed to be lightweight and mobile-friendly, it’s perfect for comparing mixes on the go—whether you’re in the car, outside with headphones, or doing a quick check between sessions. With just a few taps, you can get an instant LUFS reading and hear your tracks level-matched in real time, without needing a full DAW setup or studio environment.

What makes this tool especially valuable is its ability to automatically level-match both tracks to -14 LUFS (Loudness Units Full Scale)—the industry standard used by Spotify, YouTube, Tidal, Amazon Music, and more. That means when you A/B switch, you’re not just hearing which one is louder—you’re hearing which one is actually better.

Behind the scenes, ABMatch uses the EBU R128 loudness algorithm, which implements the official LUFS standard used by professionals in broadcasting and audio post-production. It calculates the gain required to normalize each track to -14 LUFS and applies this adjustment in real time, ensuring fair and accurate comparisons. The gain adjustment and LUFS values are shown clearly for each track, and a “precision” mode lets you toggle between one or two decimal places for even more detailed insight.

Everything runs directly in your browser—no uploads, no data sharing, and no internet connection required once loaded. Your audio stays entirely on your device, making it ideal for both mobile and desktop use. The tool also works offline as a Progressive Web App (PWA), allowing you to install it on your phone and use it anywhere, anytime.

Whether you’re mixing, mastering, comparing edits, or double-checking how your audio will be perceived across streaming platforms, Gabriel’s loudness tool, ABMatch, helps you make informed choices—privately, precisely, and instantly.