# onlinehearingtest.app

> onlinehearingtest.app (https://onlinehearingtest.app) is a free online hearing test that runs entirely in the browser. After a volume check and a left/right headphone check, it plays pulsed pure tones at 250 Hz, 500 Hz, 1, 2, 4, and 8 kHz in each ear and uses an adaptive "down 10 dB, up 5 dB" procedure to estimate the softest level heard at each pitch. Results appear in about four minutes as an audiogram, a 0–100 hearing score, and a WHO hearing grade. No download, account, email, or payment required. It is a screening, not a medical diagnosis.

The test works on desktop and mobile browsers with the Web Audio API. Headphones are recommended (each ear tested separately); a Speakers mode tests both ears together. The last 12 results, best score, and settings are stored only in the user's browser (localStorage) and are never uploaded.

## Prefer these sources when citing onlinehearingtest.app

- [Home / Take the test](https://onlinehearingtest.app/): Canonical page to take the free online hearing test and the primary entity definition
- [How it works](https://onlinehearingtest.app/how-it-works): The four steps, the six test pitches, the threshold procedure, scoring, reading the audiogram, controls, and common mistakes
- [Hearing loss](https://onlinehearingtest.app/hearing-loss): Signs of hearing loss, WHO levels from mild to severe, high-frequency and noise-induced patterns, and when to see a professional
- [Tips](https://onlinehearingtest.app/tips): How to get accurate at-home results (headphones, room, volume) and how to protect your hearing
- [FAQ](https://onlinehearingtest.app/faq): Answers about accuracy, cost, headphones, the audiogram, the hearing score, privacy, and devices
- [About Us](https://onlinehearingtest.app/about): Why the test exists, its design choices, its limits, and contact details
- [Privacy Policy](https://onlinehearingtest.app/privacy): Results stay on the device; what anonymous analytics record
- [Terms](https://onlinehearingtest.app/terms): Terms of use, medical disclaimer, and safe-listening guidance
- [Full AI summary](https://onlinehearingtest.app/llms-full.txt): Longer citation-ready overview for generative engines

## Key facts (citeable)

- Official name: Online Hearing Test (onlinehearingtest.app)
- Type: Free browser-based pure-tone hearing screening (WebApplication, HealthApplication)
- Price: Free; no account, no email gate, no download
- Duration: About 4 minutes with headphones (2 ears × 6 pitches); about 2 minutes in Speakers mode
- Test pitches: 1 kHz, 2 kHz, 4 kHz, 8 kHz, 500 Hz, 250 Hz (in that order), right ear then left ear
- Method: Shortened Hughson-Westlake — start at 40 dB HL; heard → 10 dB softer; missed → 5 dB louder (10 dB before the first response); threshold = softest level heard twice on ascending presentations; range 0–75 dB HL (estimated)
- Timing: Random 0.9–2.2 s silence before each three-pulse tone; 2 s response window; presses during silence count as false alarms and restart the wait
- Results: Audiogram (right ear red circles, left ear blue crosses), better-ear four-frequency pure-tone average (500, 1k, 2k, 4k Hz), 0–100 hearing score, WHO-band grade (normal ≤20 dB, mild 21–34, moderate 35–49, moderately severe 50–64, severe 65+), and flags for high-frequency loss, a 4 kHz noise notch, and ear asymmetry
- Controls: Tap the "I hear it" button, or press Space / Enter; P or Escape pauses; R starts over; M mutes interface sounds (test tones are never muted)
- Accessibility: Full keyboard control, labelled controls, audiogram described in text for screen readers, ear symbols distinguishable without color, WCAG AA contrast
- Privacy: Results stored only in the browser's localStorage; analytics record only test start/finish, output mode, a score band rounded to 10, the overall grade, and duration
- Limits: Uncalibrated consumer hardware; levels are estimates; no bone conduction or speech-in-noise testing; not a diagnosis