Chromatic Tuner
Standard Tuning Reference
Click any note to hear the reference tone:
How to Use This Tuner
- Allow microphone access when prompted by your browser
- Play a single note on your instrument clearly
- Watch the display — it shows the detected note and how far off you are
- Adjust your tuning — turn the peg until the indicator is centered (green)
- Flat (♭) means the note is too low — tighten the string
- Sharp (♯) means the note is too high — loosen the string
About This Instrument Tuner
This chromatic tuner uses your device's microphone to detect the pitch of any musical note. It works with guitar, ukulele, bass, violin, or any other instrument. The tuner analyzes the audio frequency in real-time using autocorrelation, a proven algorithm for pitch detection.
For best results, tune in a quiet environment and play notes one at a time. The "cents" display shows how many cents sharp or flat you are (100 cents = 1 semitone). Within ±5 cents is considered "in tune" for most purposes.
Privacy & Limitations
- All calculations run entirely in your browser -- nothing is sent to any server.
- Results are estimates and may vary based on actual conditions.
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Instrument Tuner FAQ
What is Instrument Tuner?
Instrument Tuner is a free fun & misc tool that helps you Tune guitar, ukulele, bass, and more using your microphone.
How do I use Instrument Tuner?
Enter your input values, review the calculated output, and adjust inputs until you reach the result you need. The result updates in your browser.
Is Instrument Tuner private?
Yes. Calculations run locally in your browser. Inputs are not uploaded to a server by default, and refreshing the page clears session data.
Does Instrument Tuner require an account or installation?
No. You can use this tool directly in your browser without sign-up or software installation.
How accurate are results from Instrument Tuner?
This tool applies standard formulas or deterministic processing logic for estimates. For medical, legal, tax, or investment decisions, verify with a qualified professional.
Can I save or share outputs from Instrument Tuner?
You can bookmark this page and copy outputs manually. Results are not persisted in your account and are typically not embedded in the URL.