Hi, I'm Zhichao, the maker of GuitarTool. I wanted the few minutes before practice to feel simpler: tune the instrument, set the beat, find the exact chord shape, and start playing. The app works offline. Tuner audio is analyzed on-device and is never saved or uploaded. Teachers and students can share the exact chord shape as a normal image; the recipient does not need the app. You can also try the free browser tools without installing anything: Tuner: https://weizhichao1027-collab.gi... Metronome: https://weizhichao1027-collab.gi... The browser tuner asks for microphone permission and processes audio locally. These browser tools let you try the basics; they do not include every native app feature. I'd love practical feedback: which part of tuning, timing or finding a chord shape still interrupts your practice?

GuitarTool

Offline guitar tuner, metronome and shareable chord cards

Offline guitar tuner, metronome and shareable chord cards