Offline guitar + piano chord identifier, diagrams, pitch detection, and progression scratchpad.
Tap frets to build a voicing. Open strings and muted strings are supported.
Use headphones/quiet room when possible. Pluck one string at a time; the nearest detected pitch is added to the matching guitar string.
Autocorrelation with confidence gating, low-frequency range protection, and smoothing for plucked-string detection. The browser handles microphone permission locally; no audio leaves this page.
Type a chord name such as Am7, F#maj7, C/G, Bb7, Gsus4, or Ddim.
Choose a key and build progressions by scale degree. Your current guitar tuning and capo remain available in the Guitar tab.
Tap scale degrees above to build a progression. Tap a chord below to remove it.
Arrange sections and keep the chords you're writing.
Search or choose a chord to render piano inversions and a guitar voicing.