Online Hearing Test — Free Screening
Free online hearing test screening each ear from 125 Hz to 8 kHz with warble tones and an audiogram chart. Educational screening only. Runs in your browser.
Protect your hearing. Start at a low volume. Never raise the volume to make a tone audible. Levels are shown in dBFS, relative to full scale — not SPL.
How it works
Warble sine tones at 125, 250, 500, 1k, 2k, 4k, and 8k Hz are hard-panned per ear with a StereoPannerNode and shaped with a click-free envelope plus a 5 Hz warble LFO. Each frequency starts at -30 dBFS and follows a 10 dB down / 5 dB up staircase over four presentations; the quietest heard level locks as the screening threshold. Thresholds render as an SVG audiogram and persist in localStorage. Nothing is uploaded or recorded, and no sound plays until you ask for it.
An online hearing test screens how quietly you notice tones across the speech range. Play warble tones at 125, 250, 500, 1000, 2000, 4000, and 8000 Hz in one ear at a time, answer heard or not heard, and watch the staircase find the quietest level you notice at each frequency. Your last result is saved in this browser only, and the SVG audiogram shows left-ear circles and right-ear crosses side by side. This is screening and education, not a medical test or diagnosis.
Audiogram screening per ear
Pick Left, press Play tone, then answer I heard it or I did not hear it. Each frequency repeats four presentations: heard steps 10 dB quieter, missed steps 5 dB louder, starting from -30 dBFS. The quietest heard level locks as the threshold and the test advances. Finish all seven steps, switch ears, and repeat.
Warble tones and dBFS levels
Every presentation is a sine with a gentle 5 Hz warble around the exact labelled frequency, shaped with a click-free envelope and hard-panned to the tested ear. Levels are shown in dBFS, relative to full scale — never in SPL — because browsers cannot know your headphone sensitivity or volume knob. Keep the volume fixed for the whole ear so thresholds stay comparable.
What your audiogram means
Higher points mean quieter thresholds in this screening. A flat pair of traces means similar sensitivity across frequencies in this session; a dip at one frequency means you needed a louder presentation there today. Room noise, fit, volume changes, and earwax all move screening thresholds, so treat the chart as a reason to retest or see a professional — never as a diagnosis.
Aliases covered on this page: online hearing test, hearing test, audiogram screening, and warble-tone hearing check. Screening only — not a medical test.
Frequently asked questions
Is this online hearing test a medical test?
No. It is an educational screening tool only and is not a medical device. It cannot diagnose hearing loss. The tones are uncalibrated and reported in dBFS, relative to full scale. For a diagnosis, see an audiologist or clinician.
How does the staircase work?
Each frequency starts at -30 dBFS. When you mark a tone as heard, the next presentation plays 10 dB quieter; when you miss it, the next plays 5 dB louder. After four presentations the quietest heard level locks as the screening threshold for that frequency.
Why warble tones instead of pure tones?
A warble tone gently wobbles around the labelled frequency at 5 Hz, which reduces standing-wave effects from room modes and headphone placement. The labelled frequency stays exact, and the wobble makes the screening more stable on real-world equipment.
How do I read the audiogram result?
Frequencies run left to right from 125 Hz to 8 kHz, and levels run top to bottom from -60 dBFS (quiet, better screening threshold) to -5 dBFS (loud). Circles marked L are your left ear and crosses marked R are your right ear. Points higher on the chart mean you heard quieter presentations at that frequency.
Why test one ear at a time?
Hearing can differ between ears, and a mixed test hides that. The tone is hard-panned fully left or right so each ear is screened independently. Complete the left ear, switch ears, and compare the two traces.
Is this safe for my hearing?
Start at a low volume and never raise the volume to make a tone audible. Every tone starts only from a button you press, a persistent Stop and Mute are always available, and levels are reported in dBFS, relative to full scale, never in SPL. Use headphones in a quiet room for the most stable result.
Does this online hearing test give me an audiogram?
Yes. The screening plays warble tones from 125 Hz to 8 kHz per ear using a threshold staircase, then plots your responses as an SVG audiogram chart you can review. It is educational screening only, never a medical diagnosis, and levels are relative dBFS rather than calibrated audiometric dB HL.