CHROMATIC TUNER · OFFLINE
Offline Chromatic Tuner for String Instruments
See the nearest pitch without choosing a tuning first, or lock a known target when you need a more directed reading.
Free · fully offline · no ads · opens the tuner product page
- Nearest-note detection
- 430–446 Hz calibration
- Audio stays on device
Choose automatic detection or a fixed target
Chromatic mode identifies the nearest note across the supported range, which is useful for alternate tunings and instruments without a dedicated preset. When nearby overtones make the reading jump, switch to a target string or note and watch the cents value move toward zero.
- Note name and octave
- Live frequency and cents offset
- Input-strength and stability guidance
Get a cleaner reading from the instrument
Pluck one string at a time near its usual playing position, mute the remaining strings and let the first transient pass. A steady note produces a more useful reading than a hard attack. GuitarTool processes microphone input live and does not save a recording or send audio to a server.
- Mute sympathetic strings
- Use a consistent, moderate attack
- No account, ads or audio upload
One app for the full practice flow
Tune first. Keep time. Find the next chord.
Download GuitarTool free↗FAQ
Common questions
01What is a chromatic tuner?＋
It detects the nearest note rather than limiting detection to the strings of one preset tuning.
02What does zero cents mean?＋
Zero cents means the detected pitch matches the selected equal-tempered target at the current A4 calibration.
03Does GuitarTool upload microphone audio?＋
No. Audio is analyzed in real time on the device and is neither stored nor transmitted.