How good is your ear? Listen to two tones and identify which is higher. Difficulty increases each round until the frequencies are nearly identical.
Tap the button below to play a 440 Hz tone (concert A). Make sure you can hear it clearly.
Tap to hear the test tone
Press Enter to try again
The Perfect Pitch Test measures your ability to distinguish between two tones played in sequence. Each round plays two sine wave tones — your job is to identify which one has a higher frequency. The test starts easy, with tones hundreds of hertz apart, and progressively narrows the gap until the frequencies are nearly identical.
While true perfect (absolute) pitch — the ability to name any note without a reference — is extremely rare, everyone has some degree of relative pitch. This test quantifies yours by finding the smallest frequency difference you can reliably detect.
The test generates pure sine wave tones using the Web Audio API. You hear Tone A for 0.8 seconds, followed by a brief pause, then Tone B. You then choose which tone was higher. If you're correct, the next round decreases the gap between tones. One wrong answer ends the test. Your final score is the smallest difference you successfully identified.
Perfect pitch (absolute pitch) is the rare ability to identify or produce any musical note without a reference tone. Only about 1 in 10,000 people have true perfect pitch. This test measures your relative pitch — the ability to distinguish between two close frequencies. If you can detect differences of less than 5 Hz, you have exceptional pitch perception, though this differs from absolute pitch.
This free perfect pitch test uses the Web Audio API to play precise sine wave tones through your browser. No downloads or plugins are needed. For best results, use headphones in a quiet environment. The test adapts to your ability in real time, making it suitable for both beginners and trained musicians.
True tone deafness (amusia) affects roughly 4% of people. If you can identify pitch differences of 50 Hz or larger, your pitch perception is within normal range. Most untrained listeners can detect differences of about 20–50 Hz, while trained musicians typically perceive 5–10 Hz differences. Struggling below 20 Hz is completely normal.