About frets.in

frets.in is a professional-grade toolkit for guitarists and stringed instrument players, built to run entirely in the web browser. Our mission is to provide high-quality musical tools—like tuners, amp simulators, and theory explorers—that are fast, free, and require zero installation.

Built with modern technologies like Astro, React, and the Web Audio API, frets.in processes all audio locally on your device. This ensures the lowest possible latency and total privacy for your musical data. Whether you're a beginner learning your first chords or a professional practicing on the road, frets.in is your digital companion.