Free Online Speaker & Headphone Test
Confirm your speakers, headphones, or AirPods are routing audio correctly before your next call. Calibrated reference tone, no install.
Speaker Test
Stereo channel verification with a calibrated tone.
Need the full battery? Run all six diagnostics — webcam, microphone, speakers, speed, network, and browser checks — in one pass.
A speaker test catches the silent-meeting failure mode: you join a call, can see and hear nothing, and waste a minute fiddling with sliders. Playing a known-level tone here proves audio is reaching your ears and reveals whether the volume needs adjusting before you join.
How the speaker test works
Click Play to send a short reference tone through your active audio output. If you hear it cleanly in both ears, every layer between the browser and your hardware is working — OS routing, application volume, device driver, and the speaker itself. If it's faint, raise the OS master volume; if it's only in one ear, check the channel balance in your OS sound settings.
Three sliders to check if you hear nothing
Audio passes through three independent volume controls: the operating system master, the browser's per-tab volume, and the application volume inside the call app. Any one set to zero silences the entire chain. On macOS hold Option and click the speaker icon to confirm output device. On Windows, right-click the speaker icon and open Volume Mixer.
Privacy
This speaker test plays audio out of your device. It does not access the microphone, record sound, or send anything to a server. The reference tone is generated in your browser using the Web Audio API.
Frequently asked questions
How do I test my speakers or headphones online?
Click Play above to hear a calibrated reference tone through your current audio output. If you hear sound clearly through both channels, your speakers or headphones are working at the OS, browser, and hardware level.
Why can't I hear the test tone?
Check three things in order: OS volume (and that you're not on mute), the correct output device is selected (laptop speakers vs headphones vs Bluetooth), and the browser tab is not muted (right-click the tab in Chrome and uncheck Mute Site).
Does this work for Bluetooth headphones and AirPods?
Yes. Any audio output your operating system can route to — built-in speakers, wired headphones, USB DACs, AirPods, Bluetooth speakers — plays the tone through this test as long as it's selected as the active output.
What's the test tone for?
The reference tone confirms output at a known level so you can hear distortion, missing channels, or a too-low volume slider. It's the same logic call apps use to verify your speakers before joining a meeting.
Related reading: full guide on the ReadyForCall blog →