Mic & Webcam Test: Check Your Microphone, Camera and Speakers Online
Test your microphone, webcam, and speakers in one place before any meeting or call. Live HD camera preview with real FPS, lighting and focus checks, a dBFS audio meter with spectrum and spectrogram, audio and video record-and-playback, left/right speaker test, and a call readiness score. 100% browser-based and private, nothing is uploaded.
Check your microphone, webcam, and speakers in one place before a meeting, interview, or stream, no download and nothing uploaded. One click starts a live HD camera preview with measured FPS and lighting analysis, a studio-style dBFS level meter with spectrum, waveform and spectrogram views, audio and video record-and-playback, a stereo speaker test with a frequency sweep, and a call-readiness score, all running locally in your browser.
The worst time to discover a dead microphone or a muted camera is the first minute of a call. This tool lets you confirm everything works beforehand: a live webcam preview with resolution and frame-rate readouts, an animated volume meter and frequency spectrum that prove your mic is actually picking up sound, and a record-and-playback test that plays back exactly what other people will hear.
Features
Live Webcam Preview: Instant camera feed with resolution, frame-rate and aspect-ratio readouts, mirror toggle, snapshot capture, and fullscreen.
Real-Time Audio Meter: Animated volume bar plus a live frequency spectrum and waveform so you can see your mic actually working.
Record & Play Back: Record a short clip and listen to exactly what others hear on the call, the truest mic test there is.
Speaker & Channel Test: Play a calibrated tone through left, right, or both channels to confirm your headphones and speakers work.
Device Switcher: Pick between every connected microphone, camera, and speaker and re-test instantly without a page reload.
Privacy-First Diagnostics: All processing happens locally in your browser using WebRTC, no recordings, frames, or audio ever leave your device.
One-Click Full Test: A single permission prompt starts camera and microphone together, with live status tiles for webcam, mic and speakers.
Real FPS & Camera Capabilities: Measured frame rate from delivered frames, maximum supported resolution and FPS, plus 480p to 4K and 60 FPS presets.
Lighting & Focus Analysis: Live brightness rating (too dark to overexposed) and a sharpness score, with a framing guide, zoom and front/back camera switch.
Studio dBFS Meter: LED level meter with peak hold, noise floor, clipping counter and dominant frequency, plus spectrum, waveform and spectrogram views.
Processing Toggles & Monitor: Turn echo cancellation, noise suppression and auto gain on or off, and hear yourself live through headphones.
Video + Audio Recorder: Record 5 to 60 second audio or webcam clips, play them back and download them.
Frequency Sweep & Pink Noise: 20 Hz to 20 kHz sweep, four test tones and pink noise, played through the output device you choose.
Call Readiness Report: A scored checklist of every test with a copy-to-clipboard report for IT support.
How to use Mic & Webcam Test
1
Allow camera and microphone access
When the browser prompts you, click Allow. You can grant just the mic, just the camera, or both, the tool works with whatever you permit and never uploads any of it.
2
Check the live preview and audio meter
Confirm your camera feed appears and watch the real-time volume bar and frequency spectrum react as you speak. If a device is missing, use the switcher to pick the right microphone, camera, or speaker.
3
Record, play back, and test your speakers
Record a few seconds and listen to exactly how you'll sound to others, then play the calibrated tone through the left, right, and both channels to confirm your headphones or speakers are working.
4
Fine-tune quality
Switch the camera between 480p, 720p, 1080p and 4K, request 60 FPS, and check the lighting and focus readouts. Toggle echo cancellation, noise suppression and auto gain to hear how each affects your mic.
5
Read your readiness report
The checklist scores resolution, frame rate, lighting, voice pickup, clipping, background noise and both speaker channels. Fix anything flagged, then copy the report to share with IT support if needed.
Common use cases
Verify your mic, camera, and headphones work right before a Zoom, Teams, or Google Meet call
Test a new headset, webcam, or microphone after plugging it in
Check your setup ahead of a job interview, exam proctor session, or live stream
Diagnose why others can't hear or see you on calls without installing anything
Check whether your webcam really delivers 1080p or 60 FPS as advertised
Find the right mic distance and gain by watching for clipping and noise floor
Confirm left and right headphone channels are not swapped or dead
Record a short webcam clip to check framing, lighting and lip-sync before streaming
Send a copyable device report to IT support or a teacher before an online exam
Detailed guide
Private by design, no install required
Everything runs locally in your browser using the WebRTC media APIs, your camera frames, microphone audio, and any recording you make never leave your device. There's no download, plugin, or signup, and it works across Chrome, Edge, Firefox, and Safari on both desktop and mobile. Use the device switcher to move between connected hardware and re-test instantly.
Webcam Test: Resolution, Real FPS, Lighting and Focus
Many webcams advertise 1080p or 60 FPS but deliver less once the room gets dark or the USB port is busy. This webcam test reads the resolution your camera actually streams, measures the real frame rate from delivered video frames (not just the number the driver claims), and shows the maximum resolution and frame rate the camera supports. Presets let you request 480p, 720p, 1080p or 4K and 60 FPS to see what your camera can really do. A lighting meter rates the brightness of the picture as too dark, dim, good or overexposed, and a focus score flags a soft or blurry image. You also get a mirror toggle, a rule-of-thirds framing guide with a head position oval, zoom on supported cameras, a front/back camera switch on phones, fullscreen, and PNG snapshots.
Reading
Good for calls
What to do if it's low
Resolution
1280×720 (720p) or higher
Pick a higher preset, use a USB 3 port, close other camera apps
Measured FPS
24–30 fps (60 for streaming)
Add light: most webcams halve their frame rate in dim rooms
Lighting
Good (brightness about 85–205 of 255)
Face a window or lamp; avoid a bright window behind you
Focus / detail
OK or Sharp
Clean the lens, move 50–80 cm from the camera
Microphone Test: dBFS Level Meter, Noise Floor and Clipping
The microphone test uses a studio-style LED meter calibrated in dBFS (decibels relative to full scale), with a peak-hold marker, so you can see precisely how loud your mic is. Normal speech should sit between about -30 and -10 dBFS: in the green-to-yellow zone. Peaks hitting the red near 0 dBFS cause clipping, the harsh distortion people hear when you are too close or the gain is too high, and the tool counts every clip event. It also measures your noise floor, the level of background hum, fans and traffic when you are silent, and estimates the dominant frequency of your voice. Switch between a log-scale spectrum analyzer, an oscilloscope waveform and a scrolling spectrogram to see exactly what your mic hears.
Reading
Healthy range
Meaning
Speech level
-30 to -10 dBFS
Loud enough to be clear without distortion
Peak (hold)
Below -3 dBFS
Anything near 0 dB will clip
Noise floor
Below -50 dBFS
Quiet room; above -45 dBFS others hear hiss or hum
Clipping
None
Clip events mean lower the input gain or move back
Echo Cancellation, Noise Suppression and Auto Gain
Browsers and meeting apps process your microphone before anyone hears it. Echo cancellation removes sound from your speakers that leaks back into the mic, noise suppression filters steady background noise such as fans, and automatic gain control evens out your volume. Each can be switched on or off here, and the mic reopens instantly so you can compare the meter, the spectrum and a recording with and without processing. Musicians and podcasters usually turn all three off for natural sound; meeting users usually leave them on. The optional Hear Yourself monitor plays your mic back live through headphones so you can judge tone and background noise in real time.
Record and Play Back Audio or Video
The recorder captures up to 5, 15, 30 or 60 seconds of microphone audio, or webcam video with audio, and plays it straight back so you can hear and see exactly what others get: muffled audio, echo, lip-sync drift, a dark picture or a bad angle. Recordings stay in the browser tab and can be downloaded as a WebM or MP4 file for comparison, for example before and after moving your microphone or changing a setting. Nothing is ever uploaded.
Speaker and Headphone Test: Left/Right, Frequency Sweep and Pink Noise
Choose any output device (in Chrome and Edge the test plays through the speaker you pick), set the volume, and play a tone through the left, center or right channel at 100 Hz, 440 Hz, 1 kHz or 8 kHz to confirm both sides work and are not swapped. The 20 Hz to 20 kHz frequency sweep reveals the bass and treble limits of your speakers or headphones, and your own hearing range. Pink noise is a balanced signal that makes rattles, buzzing drivers and imbalanced channels easy to hear. Mark each channel as heard to complete the speaker part of your readiness score.
Call Readiness Score and Troubleshooting
The readiness report turns every measurement into a simple checklist: secure browser support, camera working, HD resolution, smooth frame rate, lighting, voice detected, no clipping, a quiet background and both speaker channels. The score updates live as you fix issues and the full report can be copied for IT support, a teacher or a proctoring service. If a device fails, the tool explains why: a blocked permission (with steps for Chrome, Edge, Safari, Windows and macOS privacy settings), a camera already used by Zoom, Teams, Discord or OBS, a disconnected device, or a resolution the camera can't deliver.
Yes. Everything runs locally in your browser using the WebRTC media APIs. Your camera frames, microphone audio, and any recording you make never leave your device, nothing is uploaded to any server.
Why does it ask for camera and microphone permission?
Browsers require your explicit permission before any site can access your camera or microphone. Click Allow when the browser prompts you. You can grant just the microphone, just the camera, or both, the tool works with whatever you allow.
My mic or camera isn't showing up. What should I do?
Make sure the device is plugged in and not in use by another app (Zoom, Teams, OBS often lock the camera). Check that you clicked Allow on the permission prompt, then use the device switcher to select the correct hardware. Reloading the page and re-granting permission also helps.
How does the record-and-playback test work?
It captures a few seconds of audio from your selected microphone, then plays it straight back to you. This is the most reliable way to hear exactly how you'll sound to other people on a call, the live volume meter confirms the mic is picking up sound, and playback confirms the audio is clean.
What does the speaker channel test do?
It plays a clean test tone through the left channel, the right channel, or both. If you only hear the tone on one side or not at all, you'll know there's a problem with your headphones, speakers, or audio balance settings before you join a meeting.
Do I need to download or install anything?
No. This is a 100% browser-based tool with no downloads, plugins, or signup. It works in modern versions of Chrome, Edge, Firefox, and Safari on desktop and mobile.
How do I test my webcam and microphone before a meeting?
Click start and allow camera and mic access; you see a live video preview and a real-time audio level meter, so you can confirm both work before a Zoom, Teams or Meet call.
Is my camera and mic feed private during the test?
Yes. The video and audio stay in your browser for the preview and are never uploaded or recorded, so testing is completely private.
Why can't the tool access my camera or microphone?
You likely need to grant the browser permission, or another app is using the device. Allow access when prompted and close other apps (like a video call) that may be holding the camera.
How do I check my webcam's real resolution and FPS?
Start the camera and read the Resolution and Measured FPS tiles. The frame rate is counted from the video frames your camera actually delivers, not the value the driver claims. Use the resolution presets and the 60 FPS switch to see the best your camera supports; Max Supported shows its hardware limit.
Why does my webcam look dark or run at a low frame rate?
Most webcams lengthen their exposure in dim light, which darkens the image and often drops the frame rate from 30 to 15 FPS. If the lighting meter shows Dim or Too dark, face a window or lamp and avoid bright light behind you. Closing other apps that use the camera and using a USB 3 port also help.
What is a good microphone level in dB?
Normal speech should read around -30 to -10 dBFS on the meter, in the green-to-yellow zone. Peaks near 0 dBFS clip and distort, so keep the peak-hold marker below about -3 dB. When you are silent, the noise floor should be below -50 dBFS; higher means others will hear background hiss or hum.
Why does my microphone sound quiet, muffled or distorted?
A quiet mic usually needs more input gain in your system sound settings or a shorter distance (about 10 to 20 cm). Distortion shows up as clipping events: lower the gain or move back. A muffled sound can come from the wrong device being selected (for example a webcam mic instead of a headset) or from heavy noise suppression, which you can switch off to compare.
How do I test left and right headphone channels?
In the Speaker & Headphone Test, press Left, then Right. You should hear the tone only in that ear. If it plays in the wrong ear the channels are swapped; if it plays in both ears, check mono audio in your accessibility settings. Mark each side as heard to complete the check.
Can I record a test video with my webcam?
Yes. Choose Video + audio, pick a length from 5 to 60 seconds and press record. The clip plays back immediately so you can check framing, lighting and lip-sync, and you can download it as a video file. It never leaves your device.
Does the mic and webcam test work on phones?
Yes. It works in Chrome and Safari on Android and iPhone. Use the Switch button to flip between the front and back camera. Choosing a specific speaker output is only available in browsers that support it, such as Chrome and Edge on desktop; others play through the system default output.
