How accurate is the pitch detector?

Our tool is highly accurate, with a precision of within ±5 cents of a note. It uses the industry-standard YIN algorithm for reliable, real-time analysis suitable for both musicians and audio professionals. For more details, see our accuracy tests .

Is my audio data private and secure?

Absolutely. Your privacy is our top priority. All audio processing is done locally in your browser. No audio is ever recorded, stored, or sent to a server. You can read our full data security policy for more information.

The detector isn't working. What should I do?

First, ensure you have granted microphone access in your browser. If it's still not working, try using a quiet, echo-free environment and holding a clear, steady note. For a complete list of solutions, please visit our troubleshooting page .

What are 'cents' in music?

A 'cent' is a unit of measurement for musical intervals. There are 100 cents in one semitone (the distance between two adjacent notes on a piano). Our meter shows how many cents sharp (positive value) or flat (negative value) your note is, allowing for very precise tuning.

What is the difference between pitch and frequency?

Frequency is the scientific measurement of a sound wave's vibrations per second, measured in Hertz (Hz). Pitch is the musical term for how high or low a note sounds to our ears. While they are related, pitch is a subjective perception, whereas frequency is an objective measurement. Learn more in our glossary .

Can I use this to tune my guitar?

Yes! This tool works perfectly as an online guitar tuner. Simply play each string one at a time and use the feedback to adjust the tuning pegs until the note is perfect. It works for acoustic and electric guitars (if played through an amplifier).

Privacy-First Pitch Detection: How We Protect Your Audio

🔒 Our Promise: Your Audio Stays Private

At PitchDetector.com, privacy isn’t an afterthought — it’s a design principle.
Every note you sing or play is processed entirely within your own device, using secure browser technology.
Your audio never leaves your computer, phone, or tablet.

We don’t record, store, or transmit any sound. Ever.

🧠 1. How Our Browser-Based Pitch Detection Works Safely

Our tools run on the Web Audio API, a built-in browser technology developed by the W3C (Web Standards Consortium).
This allows real-time pitch analysis with zero server connection once the page is loaded.

Step-by-Step Process

You open the Online Pitch Detector.
Your browser requests microphone access locally (visible as a small permission popup).
Once granted, sound waves are analyzed in real time on your CPU — no data leaves your browser.
Detected pitch values (frequency + note) are displayed instantly on screen.
When you close or refresh the page, the microphone stream is terminated automatically.

No cloud recording, no remote analysis, no hidden uploads.

🎙️ 2. Microphone Permissions — Your Control Matters

When the browser asks for permission to use your microphone, that access is:

Temporary — revoked when you close the page or tab.
Local — used only for live signal input.
User-controlled — you can deny, allow, or remove permission anytime.

How to Revoke Access

Chrome: 🔒 icon → Site Settings → Microphone → “Clear Permissions.”
Safari: Preferences → Websites → Microphone → Remove Access.
Edge/Firefox: Settings → Privacy → Microphone.

If you experience mic issues, visit our Troubleshooting Hub for quick fixes.

⚙️ 3. No Cloud Uploads or Recordings

Unlike mobile apps or software that upload audio to external servers, PitchDetector.com performs all processing locally.

We do not:

Record or log microphone streams
Store frequency data or pitch results
Save audio files
Transmit input to any third-party API

The result: complete privacy, faster performance, and zero data exposure.

🧩 4. Security in Our Code & Infrastructure

We implement industry-standard security practices:

HTTPS encryption — All site traffic is protected via SSL certificates.
No cookies for audio processing — Only minimal analytics cookies, disclosed in our Privacy Policy.
No third-party trackers during microphone use.
Automatic session termination after you close the tab or switch pages.
Regular code audits to prevent unauthorized data capture.

💡 All our pitch tools — including the Audio File Pitch Detector and Voice Pitch Analyzer — follow the same privacy-first principle.

🧠 5. Transparency & Open Technology

We believe users should understand how pitch detection works.
That’s why our methodology is fully documented in the Methodology Guide.

You can learn:

Which algorithms (FFT, YIN, Autocorrelation) we use.
How we measure and display accuracy.
Why processing on your device ensures security and speed.

For academic or educational contexts, refer to the Knowledge Hub for in-depth explanations.

🧱 6. Our Security Stack & Server Practices

While pitch analysis itself is local, our website infrastructure also follows best security practices:

Layer	Security Measure
Web Server	Firewall + DDoS protection
SSL/TLS	2048-bit certificate encryption
Codebase	No inline third-party scripts; strict CSP policies
CDN	Global delivery for speed & integrity
Data Storage	Only aggregate analytics (no user audio)

We store no personal data, no session recordings, and no identifiable mic input.

📋 7. Cookie & Analytics Transparency

We use privacy-respecting analytics to understand general site usage only — not individual activity.

No behavioral tracking or profiling.
No cross-site identifiers.
Aggregated metrics only (page views, load times).
Full details in our Privacy Policy.

🧭 8. Your Rights & Controls

You can:

Deny mic permissions at any time.
Delete cookies through your browser.
Contact us via Contact Us to review or remove any optional data (such as newsletter sign-ups).

We comply with GDPR and CCPA principles for transparency and data minimization.

🧩 9. Related Resources & Hubs

Troubleshooting Hub — Fix microphone and latency issues.
Knowledge Hub — Learn how pitch detection works technically.
Accuracy Tests — See how we measure and validate performance.
Use Case Hub — Discover real-world applications.

🧑‍💻 10. Our Commitment to Trust & Transparency

Our mission is to make pitch detection accessible without compromising user privacy.
Every tool on PitchDetector.com is reviewed by audio DSP engineers and built with open standards.
We don’t just promise security — we engineer it into the core of our technology.