Speakers
Test speakers and headphones online
Speaker test online: check headphones, left and right channels and whether you can hear the frequencies. No install.
What this speaker test can do
- Continuous tone with frequency, volume and waveform
- 20 Hz–20 kHz sweep plus white/pink noise
- Left/right channel check, balance and click
- Out-of-phase mode for stereo phase verification
- Live waveform and spectrum visualizer
- Presets and output device selection (where the browser supports it)
How to test your speakers online
Open the tool
Go to the speaker test page — no installation required.
Pick a mode
Use a preset or press Play for tone, sweep, noise or click.
Check stereo
Switch L/R and balance to confirm both channels work and are not swapped.
Go deeper
Enable out-of-phase for a phase check and watch the waveform or spectrum visualizer.
Frequently asked questions
Why is there no sound?
Check system volume, the selected output device, and that the tab is not muted. HDMI monitors often steal the audio output. In Chrome you can pick a sink in the devices panel.
What is out-of-phase for?
The right channel is inverted. Near-silence in a mono sum means the stereo channels are in phase; loud mono sum can indicate a phase or summing issue.
What do the left and right tests check?
They play a tone in one channel only, so you can verify the speakers or headphones aren't swapped or unbalanced.