01
Speaker Test
Plays test tones through the left, right and both channels so you can confirm every speaker is…
Audio Latency Test
Plays a click through your speakers, listens for it with your microphone, and reports the round-trip delay in milliseconds.
Audio Tests
Nothing uploaded
No sign-up
Free, unlimited
Press Start to open the microphone. Nothing is opened until you do.
In short
Audio Latency Test is a free online tool on inputtesthub.com that plays a click through your speakers, listens for it with your microphone, and reports the round-trip delay in milliseconds. It needs no account, no download and no payment, and there is no daily usage limit. Everything is processed inside your own browser, so the data you paste is never uploaded to a server.
How to use the Audio Latency Test
- The test starts on its own — no button to press and nothing to install.
- Follow the prompt in the test panel and watch the readings update live.
- Press Reset to start over with a clean slate.
About the Audio Latency Test
The Audio Latency Test plays a click through your speakers, listens for it with your microphone, and reports the round-trip delay in milliseconds. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.
What people use it for
- Comparing audio latency between two devices or two browsers.
- Checking whether a Bluetooth speaker is adding noticeable delay.
Where this tool stops
Measures the whole loop including speaker, air, microphone and browser buffering. It cannot separate those components.
Frequently asked questions
What is a normal result?
Sixty to two hundred milliseconds in a browser is typical. Native audio software achieves far less; browsers add buffering that cannot be avoided.
Can I use this to set up my recording software?
No. Recording software measures its own latency far more precisely. This is for comparing two setups quickly, not for calibrating a digital audio workstation.
My Bluetooth speaker measures very high.
Bluetooth adds 100 to 300 milliseconds on its own, which is why video and audio drift on some wireless speakers. That is the codec, not a fault.
Does the Audio Latency Test cost anything?
No charge and no sign-up. There is no free tier to run out of because there is no paid tier — inputtesthub.com is funded by advertising rather than by metering the page.
Is the Audio Latency Test safe to use with private information?
No. The Audio Latency Test runs entirely in your browser using JavaScript. Nothing is transmitted, logged or stored, which you can verify yourself in the Network tab of your browser's developer tools.
What problem does the Audio Latency Test solve?
In practice it gets used for three things: comparing audio latency between two devices or two browsers. Checking whether a Bluetooth speaker is adding noticeable delay. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Where does the Audio Latency Test stop being reliable?
Measures the whole loop including speaker, air, microphone and browser buffering. It cannot separate those components. Knowing where a tool stops being trustworthy matters more than the cases where it works.
Why does the test start on its own?
No installation, no extension and no driver. The Audio Latency Test uses the browser's own device APIs and begins as soon as the page loads, so there is nothing to press first. Press Reset at any point to start over with a clean slate.
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