Camera Test
Free online camera test. See every connected camera at once, check each feed's resolution, and find camera hardware, driver, or permission issues.
Device Tests
Test your camera, microphone, and speakers in your browser. Device permissions are requested only when a tool needs them; media testing stays in your browser.
Microphone Browser and Input Level Test
Free online microphone test. See every microphone on your device with a live level meter and waveform, then open any mic in the recorder and spectrogram.
Microphone Recorder and Spectrogram
Free online microphone test. Watch a live waveform and spectrogram, record and play back audio, and scrub through the recording to check sound quality.
Speaker Test and Tone Generator
Free online sound test. Check left and right speakers, play tones from 20 to 2000 Hz, pick an output device, and measure speaker-to-microphone latency.
Dead Pixel Test
Free online dead pixel test. Fill your screen with solid red, green, and blue to find dead, stuck, or lit pixels on any monitor, laptop, phone, or tablet.
Mouse Test
Free online mouse test. Check left and right clicks, scroll wheel direction and speed, and cursor movement to find double-clicking, lag, or tracking problems.
Keyboard Test
Free online keyboard test. Press each key to see it light up on a virtual keyboard and find dead, sticky, or wrongly mapped keys and rollover limits.
Touch Screen Test
Free online touch screen test. Draw with one or more fingers to find dead spots, ghost touches, and multi-touch problems on phones, tablets, and laptops.
Ping Test
Free online ping test. Measure live latency between your browser and our server with a running chart of current, average, minimum, and maximum ping.
Local IP Address Finder
Free local IP address finder. See the private network addresses your device uses, with the type of each address and one-click copy.
Battery Status Test
Free online battery test. See your battery level and charging state live, with time remaining, a trend chart, and an estimate of full battery life.
GPU Stress Test
Free online GPU stress test. Load your graphics card with a WebGPU compute workload and watch live throughput to spot overheating, throttling, or crashes.
CPU Stress Test
Free online CPU stress test. Load every processor thread with intensive calculations and watch a live score chart to check stability, cooling, and throttling.
Display and Hardware Information
See your screen resolution, scaling, color depth, CPU threads, approximate memory, and graphics card as reported by your browser.