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Free · In-browser · No upload

Hearing Test & Tone Generator.

Generate browser test tones, sweep the nominal audible range and compare left with right. The result is an informal, uncalibrated check — not a hearing diagnosis.

Before-and-after illustration of Hearing Test & Tone Generator: Headphones and listener becomes Observed hearing range through Play test tones.
Before → process → afterSee the signal story, then hear it in the workspace.

MEASUREMENT MAP

Frequency Hearing Sweep

Turn a signal into evidence you can inspect. A useful analyzer connects the raw trace, the measurement window and a clearly labeled result without pretending that one number explains the whole recording.

Before-and-after illustration of Hearing Test & Tone Generator: Headphones and listener becomes Observed hearing range through Play test tones.
Headphones and listenerPlay test tonesObserved hearing range
An analysis path: a bounded signal window produces comparable metrics and a visual trace while preserving the context needed to interpret them.
Open the full signal breakdownBest source, processing logic, limits and three-pass listening check
  1. Headphones and listener

    Start with the right material

    Speaker checks and personal listening curiosity at a safe, low volume.

  2. Play test tones

    Understand the transformation

    Web Audio oscillators generate tones across roughly 20 Hz to 20 kHz.

  3. Observed hearing range

    Verify the usable result

    An uncalibrated self-reported frequency range for this device and listening setup.

Setup observation

Where this workflow stops

This is not an audiogram or medical hearing test. Hardware, volume, background noise and age all affect results; stop if uncomfortable and consult a hearing professional for concerns.

THREE-PASS CHECK

Make the final decision by ear

  • Use the same window and settings when comparing two files.
  • Treat estimates as evidence, not as a substitute for listening.
  • Export or note the measurement context alongside the result.

How to test your hearing online

  1. Lower device volume before starting. Use a low, comfortable setting and never increase it to chase an inaudible tone. The page’s digital gain is not a calibrated acoustic safety limit.
  2. Choose Frequency, Volume, waveform and output channel while stopped. Use Play tone explicitly; it auto-stops after 30 seconds. Choosing settings alone does not play a confirmation tone.
  3. Use Start sweep (10 s) for the logarithmic 20 Hz–20 kHz sine sweep. Stop sweep, Stop all audio or Escape can interrupt it. Starting another source replaces the current one.
  4. Use Start range check for two-second sine tones from 8–20 kHz. Replay replaces the prior burst; Not heard ends the ladder and the rest remain Not tested. Stop check cancels without inferring a result.

This browser tone generator pairs an uncalibrated signal source with an informal listening-range check. It can help explore whether speakers reproduce a tone, find possible rattles or compare left and right earbuds, but headphones, volume, device frequency response and background noise strongly affect what you hear. The result is not a measurement of biological age, hearing loss or medical status. Use a comfortable level and see an audiologist for a calibrated assessment.

Read the worked tone and setup guide → for control names, answer examples, equipment limits and non-diagnostic interpretation.

Hearing Test & Tone Generator: quick answer and technical limits

Quick answer: A browser tone and frequency-sweep experiment for informally checking what you can hear through the current device and headphones.

Best for
Playback-setup checks at a low, comfortable setting; digital gain does not establish acoustic safety.
How it works
Web Audio oscillators generate tones across roughly 20 Hz to 20 kHz.
What you get
Submitted answers and the highest confirmed test tone in this uncalibrated setup; remaining tones may be untested.

Know before you use it: This is not an audiogram or medical hearing test. Hardware, volume, background noise and age all affect results; stop if uncomfortable and consult a hearing professional for concerns.

Privacy: Tones are generated locally without a microphone or audio upload. Answers stay in page memory; copying a setup result is an explicit clipboard action. Normal page assets can still load as described in the privacy notice. Privacy details →

FAQ

Is this online hearing test a medical diagnosis?
No. The result only records the highest tone you confirm in this uncalibrated playback setup. It cannot measure biological age, detect or rule out hearing loss, or replace a calibrated clinical test.
What does the highest frequency I can hear mean?
It is the highest generated tone you confirmed in this browser, device, output hardware, room and volume setting. Hardware response and background noise can dominate the result, so it is not a clinical hearing threshold.
Should I use headphones, and how loud?
Headphones are strongly recommended — laptop speakers often cannot reproduce very low or very high frequencies at all, which skews results. Set a comfortable, moderate volume before you start and never crank the volume to chase a tone you cannot hear.
What else can I do with the tone generator?
Plenty: test whether a subwoofer really reaches 30 Hz, find rattling frequencies in a room or car, check left and right channels separately, tune instruments against a reference tone, or run a full 20 Hz–20 kHz sweep to hear where your audio gear gives up. Sine, square, sawtooth and triangle waveforms are included.