How to Test
- Lower your system volume before starting.
- Select LEFT, then RIGHT, and listen carefully.
- Select BOTH to compare both sides.
FREE ONLINE TOOL
Test Your Left and Right Speakers
Play a test sound through your left speaker, right speaker or both to check that your audio is working correctly. Works with built-in speakers, external speakers, and headphones.
Left SpeakerShould play when LEFT or BOTH is selected
Left Channel
Ready to test — choose a channel
Right Channel
Right SpeakerShould play when RIGHT or BOTH is selected
⚠ Protect your hearing — start at a low volume.
Confirm what you heard
Your answer is the result — this browser test does not measure your physical speakers.
Can You Hear Both Sides?
LEFT plays only the left speaker; RIGHT only the right; BOTH plays both. Reversed channels can indicate swapped cables or audio settings.
Safe Listening
Start low, avoid prolonged loud testing, and stop if uncomfortable. This is not a medical hearing test.
Speaker tester help
Why can’t I hear sound?
Check the system and browser-tab volume, select the correct playback device, and make sure speakers or headphones are connected.
Why does LEFT play through my right speaker?
Your channels may be reversed by cabling, speaker placement, or an operating-system audio setting.
Does this tool record audio?
No. It generates sound locally and never accesses your microphone or uploads audio.