Super Time Ultra
Free Online Chromatic Tuner
Accurate free online tuner with live microphone input. Chromatic pitch detection, cents meter, reference tones for guitar, bass, ukulele, violin. No ads, no signup, works in any browser.
Use your microphone for live pitch detection, or use reference tones when you want to tune by ear. The tuner works as a chromatic tuner for any instrument and includes practical presets for guitar, bass, ukulele, violin, and everyday practice.
What this online tuner includes
Microphone pitch detection
Play a note into your device microphone and watch the nearest pitch plus cents deviation.
Instrument presets
Tune standard guitar, bass, ukulele, violin, and full chromatic notes without installing an app.
Reference tones
Hear target notes when you prefer tuning by ear or want to check intonation against a steady pitch.
Practice-suite workflow
Move from tuning into metronome, drone, rhythm, and printable practice tools in the same browser app.
How to use the online tuner
- Open the tuner and allow microphone access when your browser asks.
- Play one note or string clearly, then watch the detected note and cents meter.
- Tune slowly until the pitch is centered instead of chasing every tiny vibration.
- Use reference tones or adjust A4 if your ensemble uses a different tuning standard.
Online tuner tips
- Use a quiet room: background noise and sympathetic string vibration make any microphone tuner less stable.
- Tune up to pitch: if a string is sharp, loosen below the note and tighten back up for better tuning stability.
- Check after playing: tune again after bends, heavy strumming, capo changes, or temperature changes.
Keep the tuner free: Super Time Ultra is ad-free. The one-time Supporter Pass funds the tuner, metronome, polyrhythm generator, exports, and printable rhythm tools. Get Supporter Pass.