A straightforward way to check your microphone, speakers and audio quality — directly in your browser.
Microphone diagnosticsLive input levels, signal and clipping checks.
Speaker & headphone testCheck output with controlled audio tones.
Private by designAudio is processed locally in your browser.
No installation required · Microphone permission requested only when testing
SoundCheck
PRIVATE · RUNS IN YOUR BROWSER
Free online audio checker
Online Mic Test & Speaker Test
Wondering “is my microphone working?” Test your mic online, check live audio levels, measure background noise and play speaker test tones—all in your browser.
The clip never leaves your device unless you download it yourself.
Latency Check
Experimental speaker-to-mic delay estimate
ROUND-TRIP DELAYspeaker → air → mic
— ms
Rough estimate only; results vary by device and room
Requires the microphone test and audible speakers.
Interpreting the result
< 30 ms: excellent — wired headphones or direct monitor.
30–100 ms: typical for built-in speakers and mics.
> 150 ms: Bluetooth or heavy processing — noticeable delay on calls.
Session Health
Auto-scored audio check
0 / 6
Run the tests above and your score builds up automatically.
How to test your microphone online
SoundCheck is a free online microphone test that helps you check whether your computer or phone is detecting a microphone. Start the test, allow microphone permission, and speak normally. The live meter shows whether audio is reaching your browser.
Open this page in a modern browser using its secure HTTPS address.
Select Get Started and allow microphone access when your browser asks.
Speak normally and watch the live input meter.
Make an optional short recording and play it back to hear your microphone.
Use the speaker test to play a short tone and check your output.
What can this audio test check?
Microphone check
See whether your selected microphone sends an audio signal to the browser, and compare its relative input level.
Audio loudness meter
View a digital input level measured in dBFS. This is not a calibrated measurement of room loudness in dB SPL.
Speaker test
Play short test tones at different frequencies to check whether your speakers or headphones produce sound.
Record and playback
Make an optional short recording and play it back to check how your microphone sounds. You choose whether to download it.
Microphone not working? Try these fixes
Check browser permission: allow microphone access for this website in your browser's site settings.
Check the input device: choose the correct microphone from the input device list.
Check system settings: make sure microphone access is enabled in your device settings.
Close other apps: video-call or recording apps may already be using the microphone.
Use a secure connection: microphone access generally requires HTTPS or localhost.
Check your output: if a speaker tone is not audible, check the selected output device, mute setting and volume.
Check sound and mic online
Use this free online sound check to check your sound and mic in one place. If you want to check your microphone and speaker, run the microphone test and then play a speaker tone. This microphone and speaker check works in your browser, so you can check microphone and speaker online without installing an app. You can also use it as an audio check for your microphone, a microphone sound check test, or a sound check for speakers and headphones.
To check audio and microphone input, allow browser microphone access and speak normally. To check speaker and mic together, confirm that the live microphone meter responds and that you can hear the speaker test tone. These checks help answer the common question: how do I test my microphone and speakers?
Quick microphone and speaker check
Check sound and mic: start the mic test and watch the live input meter.
Check my microphone and speaker: speak into the mic, then play a speaker test tone.
Check microphone and speaker online: use both tests directly in this browser.
Sound check for speakers: play a short tone at a comfortable volume.
Frequently asked questions
How can I test if my microphone is working?
Open SoundCheck, allow microphone permission, select your input device if needed, and speak. If the live meter responds, the browser is receiving audio from your microphone.
Can I test my microphone without downloading an app?
Yes. SoundCheck runs in a modern web browser, so you do not need to install a separate app. Microphone access requires a supported browser and a secure page connection such as HTTPS.
Is this online mic test free?
Yes. The microphone, speaker, level and playback checks on this page are free to use.
Does SoundCheck upload or save my microphone audio?
Live audio is processed in your browser and is not uploaded by this page. A short recording is made only after you press Record. It stays in the browser session unless you choose to download it.
Why does my microphone test show no sound?
Check that you allowed microphone access, selected the correct input device, connected the microphone properly and enabled microphone access in your device settings. Then refresh the page and try again.
What does dBFS mean?
dBFS means decibels relative to digital full scale. It describes the level of the audio signal inside the digital system; it is not the same as calibrated sound pressure level (dB SPL).
Can I test speakers and headphones here?
Yes. Use the speaker test to play a short tone. You can select an output device where your browser and operating system support output selection.
SoundCheck topicsOnline Mic TestMicrophone TestSpeaker TestAudio CheckHeadphone TestMic Not WorkingMicrophone and Speaker Test
Privacy note: SoundCheck asks for microphone permission only when you start the microphone test. You can stop the test at any time.