HearWell - Free Hearing Health Tools
Free hearing tests & tinnitus relief. No ads, no tracking.

About HearWell - Free Hearing Health Tools
Introduction to HearWell - Free Hearing Health Tools
HearWell - Free Hearing Health Tools is a browser-based, open-source toolkit for hearing assessment and tinnitus management. It is designed for individuals exploring their hearing health, people living with tinnitus, educators, and researchers who need accessible, privacy-first audio tools.
The suite includes an online audiometer, tinnitus frequency finder, tonal tinnitus masker with multiple modulation options, a customizable noise generator with equalization, and notched noise generation. HearWell requires no account, runs entirely in the browser, and stores no personal data. Results are for informational and educational use only and are not a substitute for professional medical evaluation.
Key Takeaways
- 100% free and open-source; no accounts, no ads, no tracking
- Runs in the browser; audio processing occurs on-device and data does not leave your device
- Online audiometer covering approximately 250 Hz to 10 kHz with interactive audiogram visualization
- Tinnitus frequency finder with interactive slider and selectable waveforms
- Tonal tinnitus masker with 14 modes, including amplitude, frequency, and coordinated reset (CR) modulation
- Noise generator with ambient sounds and 8-band EQ for customized sound shaping
- Notched noise synthesis for tinnitus-related sound experiments
- Interface available in nine languages
How HearWell - Free Hearing Health Tools Works
HearWell uses web audio technologies to generate and control tones and noise directly in the browser. Users select a tool, connect headphones, and adjust parameters such as frequency, level, modulation type, and equalization to explore hearing thresholds or create sound environments. No download or account is required.
The audiometer guides users through frequency-by-frequency threshold checks and plots results on an interactive audiogram chart. The frequency finder provides an interactive slider and waveform selection to help users match a perceived tinnitus pitch. The tonal masker offers multiple modulation modes (AM/FM/CR) for neuromodulation-style sound experiments. The noise generator supports ambient backgrounds and an 8-band EQ, and the notched noise tool produces spectrally notched noise around a selected frequency.
Accuracy depends on equipment, environment, and user interaction. These tools are not medical devices and are not intended for diagnosis or treatment. For any hearing concerns, users should consult a qualified healthcare professional.
| Tool | Primary purpose |
|---|---|
| Online Audiometer | Informational hearing threshold checks with interactive audiogram |
| Frequency Finder | Estimation of perceived tinnitus pitch using tones and waveforms |
| Tonal Tinnitus Masker | Sound modulation options (AM/FM/CR) for tinnitus-related experiments |
| Noise Generator | Custom white/ambient noise with 8-band EQ for sound shaping |
| Notched Noise | Generation of spectrally notched white noise centered around a chosen frequency |
Core Benefits and Applications
- Personal hearing self-checks to monitor changes over time in non-clinical settings (informational only)
- Tinnitus pitch estimation to inform individualized sound choices in subsequent masking or modulation experiments
- Exploration of masking and neuromodulation-style audio (AM/FM/CR) for tinnitus management practices
- Creation of tailored noise profiles for focused work, sleep routines, or relaxation using EQ and ambient sounds
- Educational use in courses or workshops demonstrating audiograms, frequency perception, and sound modulation concepts
- Privacy-first setup for users who need local-only processing without accounts or data collection
- Multilingual accessibility supporting global users without additional setup