Front-end only audio suite: stereo callouts, manual sine tone and logarithmic sweeps, white/pink noise references, plus microphone level and peak meters.
Shows live output energy for tones, sweeps, channel callouts, and noise playback.
One click sweep from sub-bass to upper treble to check frequency response and resonances. Great for finding rattling objects on your desk or testing subwoofer bass response. Default duration 9 seconds.
An audio test verifies your speakers, headphones, and microphone are working correctly. It checks stereo left-right balance, plays frequency sweeps to detect distortion or missing ranges, and monitors microphone input levels. Perfect for troubleshooting audio issues, testing new headphones, or verifying your recording setup. This browser-based tester requires no installation—just open and test.
Our audio tester uses the Web Audio API to generate test tones, noise signals, and frequency sweeps directly in your browser. For speaker testing, we synthesize sine waves at specific frequencies and route them to left or right channels. For microphone testing, we access your mic through the MediaDevices API and display real-time level meters. All audio processing happens locally—no audio is recorded or sent to servers.
This browser-based test accurately generates audio signals and measures microphone input levels. However, there are limitations: Very low bass frequencies (<50Hz) require capable speakers. Very high frequencies (>16kHz) may be inaudible to some users. Microphone sensitivity readings are relative, not calibrated. For professional audio calibration, dedicated measurement tools are recommended.
Audio should play clearly from left and right speakers independently. If one channel is silent or quiet, check speaker connections, audio settings, or balance controls.
The frequency sweep reveals your speakers' range. If bass or treble drops off dramatically, your speakers may have limited frequency response.
The mic meter should respond to your voice. No movement indicates a muted or disconnected mic. Constant high levels may indicate feedback or noise issues.
Common questions about speakers, headphones, and microphones.
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Methodology: Our testing methodology uses standard Web APIs (Web Audio API, MediaDevices API) supported by all modern browsers. Tests generate accurate audio signals locally.
About: HardwareTest provides free, privacy-first hardware diagnostics. All audio is generated and processed locally with no recording or data collection.
Disclaimer: This tool provides browser-based audio testing. Results depend on your speaker/headphone quality and system audio settings. For professional calibration, specialized equipment is recommended.
Guides for speakers, headphones, and microphones.
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