Online Piano Tuner
Free Piano tuner with microphone.
dB
dB12243648
♯
---.- HZ--.- C
-50-200+20+50
Piano tunings
| Tuning | Notes (low → high) | Frequencies |
|---|---|---|
| Chromatic (all 88 keys) | Chromatic | 27.5 – 4186 Hz |
How to tune your Piano
- Click Start Tuning above and allow microphone access.
- Play one string (or note) at a time, close to the microphone.
- The tuner shows the nearest target note and how many cents you are off.
- Tighten to raise the pitch, loosen to lower it, until the display turns green.
Need a different tuning? Use the tuning selector above the display — every preset is free. You can also lock any note by clicking it, which is handy when a string is far from its target.