How to test your microphone and webcam online
MicTest+ checks your microphone, webcam and speakers right in your browser. Press the button under the headline and allow access when your browser asks. No app to install, no account to create.
- Click "Test everything" (or start the mic or camera test on its own).
- When the browser asks for permission, choose "Allow".
- Speak normally. The level meter and waveform should move with your voice.
- Look at the camera preview. Check the image, resolution and frame rate.
- Play the left/right tones to confirm your speakers or headphones work.
What the results mean
The microphone meter shows the loudness of your input in decibels (dB) relative to the maximum the device can capture. Silence usually sits below −60 dB, normal speech at arm's length lands between −35 and −15 dB, and anything that touches 0 dB will clip and sound distorted.
For the camera, the resolution (for example 1280 × 720 or 1920 × 1080) tells you how much detail you get. The frame rate (FPS) tells you how smooth the motion is. 30 FPS is standard for video calls. Many webcams drop to 15 FPS in dim light, so add light if your FPS is low.
Test before Zoom, Teams, Google Meet or Discord
A quick check before an important meeting, interview, online class or stream saves you from the classic "can you hear me?" moment. Choose the same microphone and camera here that you plan to use in Zoom, Microsoft Teams, Google Meet, Skype, Discord or OBS. If they work on MicTest+, they work in the browser, so any remaining problem is in that app's own audio or video settings.
Microphone or camera not working? Quick fixes
- Allow access: click the lock or camera icon next to the address bar and set Camera and Microphone to "Allow", then reload.
- Close other apps: Zoom, Teams, OBS or another browser tab can lock the camera so nothing else can use it.
- Pick the right device: use the drop-down to switch between built-in, USB and Bluetooth devices.
- Check system privacy settings: on Windows open Settings → Privacy & security → Camera / Microphone; on macOS open System Settings → Privacy & Security.
- Look for hardware switches: many laptops have a camera shutter or a mute key, and headsets often have an inline mute switch.
- Update drivers or restart: a reboot clears most "device not found" errors.
Is it private?
Yes. Everything runs locally using standard browser technology (WebRTC getUserMedia and the Web Audio API). Your voice and video are never sent to a server, never stored and never seen by anyone. Recordings and snapshots exist only in your browser until you close the tab or choose to download them.