Free speaker test · no install
Is your speaker actually working? Let's find out.
Play a tone through the left channel, the right channel, and a full frequency sweep — right in your browser. Works on phone, laptop, PC, or headphone speakers.
- L/R channel isolation test
- 20 Hz–20 kHz full-range sweep
- 0 downloads required
Tap a test to begin. Headphones give the clearest left/right result.
How to run a proper speaker test
Four checks tell you almost everything: whether each channel works, whether the full frequency range plays cleanly, and where exactly a problem sits if there is one.
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1
Turn up your volume
Headphones give the clearest left/right result, but built-in speakers work fine too.
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2
Test each channel
Tap Left, then Right. You should hear the tone clearly on that side only, nowhere else.
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3
Run the full sweep
20 Hz to 20 kHz over 20 seconds. Listen for buzzing, rattling, or spots where it cuts out.
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4
Match what you heard to the fix
A silent channel, a rattle at one pitch, and general quietness all point to different problems.
Why test channels separately
A phone, laptop, or pair of headphones can have one working driver and one failed one — media that's mixed mostly center will still sound "fine" until you isolate each side. A half-inserted headphone jack, a Bluetooth device stuck in mono, or an accidentally shifted OS balance setting all produce the same symptom: audio that seems to work but is quietly missing a channel.
What a frequency sweep tells you
Different problems show up at different points in the sweep. A rattle that appears only in a narrow band usually means a loose part or foreign object resonating at that specific frequency. A range that goes quiet or drops out points to a partially blocked or damaged driver — worth running the speaker cleaner if water or dust is a plausible cause, or checking the fix my speaker guide otherwise.
Speaker test questions
How do I test if my speakers work?
Turn volume up to a comfortable level and tap Left Channel, then Right Channel, then Both. You should hear a clear, steady tone on the correct side each time. Then run Full Sweep to check the entire range for buzzing, rattling, or dead spots.
How do I test left and right audio channels?
Use the Left Channel and Right Channel buttons above — each plays a tone panned entirely to that side. With headphones this is unambiguous; with speakers, listen for which physical driver is producing sound.
Can I test my laptop or PC speakers with this?
Yes. This works with any audio output your browser can reach — phone, laptop, desktop, headphones, or Bluetooth audio. It doesn't matter what device you're testing.
I don't hear anything on one side, what does that mean?
First check the basics: a half-inserted headphone jack, a Bluetooth device connected in mono, or an OS balance setting shifted to one side. If those check out and one channel is genuinely silent, that driver has failed and needs a repair.
Is this different from the speaker cleaner tool?
Yes. This page diagnoses whether your speakers work correctly. If the test reveals a muffled or quiet speaker rather than a dead one, the water and dust removal cycle is the next step, not this test.
Does this work with headphones and earbuds too?
Yes — headphones and earbuds actually give the clearest result for the left/right test, since each ear is fully isolated from the other.
Speaker sounds muffled, not silent?
That's a cleaning problem, not a broken driver — the main tool can help.
Go to the speaker cleaner →