12 tools ready to use
Free online device and browser tests
Test your microphone, webcam, speakers, headphones, keyboard, mouse, input latency, touchscreen, and monitor; measure internet speed and bufferbloat; or inspect browser compatibility and device details. No app or account is required.
- Hardware tests run in this browser
- No app, account, or signup
- Camera and microphone media stays local
Most used tests
Quick diagnostics for calls, recordings, hardware troubleshooting, Wi-Fi problems, display inspections, and browser compatibility checks.
Microphone Test
Test your microphone, watch average and peak input levels, switch devices, check sample rate, and record a private playback clip.
Open toolCamera Test
Test your webcam with a private preview, switch cameras, check resolution and frame rate, toggle mirroring, and save a snapshot.
Open toolInternet Speed Test
Measure download and upload speed, latency, jitter, packet loss, and bufferbloat, with scores for streaming, gaming, and calls.
Open toolKeyboard Test
Test every keyboard key on a visual layout, find dead or repeating keys, and inspect keydown, keyup, code, and modifier events.
Open toolKeyboard Latency Test
See each key press and graph key-event-to-frame latency with median, average, fastest, slowest, P95, and consistency results.
Open toolMouse Test
Test five mouse buttons, wheel directions, cursor movement, report rate, and double-click timing, including possible switch bounce.
Open toolMouse Latency Test
See each mouse click and graph button-event-to-frame latency with median, average, fastest, slowest, P95, and consistency results.
Open toolScreen Test
Use 13 full-screen patterns to find dead pixels, bleed, clouding, banding, tint, and scaling issues, then measure refresh rate.
Open toolAll device and browser tests
Audio & video
Microphone Test
Test your microphone, watch average and peak input levels, switch devices, check sample rate, and record a private playback clip.
Open toolCamera Test
Test your webcam with a private preview, switch cameras, check resolution and frame rate, toggle mirroring, and save a snapshot.
Open toolSpeaker Test
Test speaker and headphone left, center, and right channels, choose a sound, and work through a guided frequency sweep.
Open toolInput devices
Keyboard Test
Test every keyboard key on a visual layout, find dead or repeating keys, and inspect keydown, keyup, code, and modifier events.
Open toolKeyboard Latency Test
See each key press and graph key-event-to-frame latency with median, average, fastest, slowest, P95, and consistency results.
Open toolMouse Test
Test five mouse buttons, wheel directions, cursor movement, report rate, and double-click timing, including possible switch bounce.
Open toolMouse Latency Test
See each mouse click and graph button-event-to-frame latency with median, average, fastest, slowest, P95, and consistency results.
Open toolTouchscreen Test
Draw across a touchscreen to find dead zones or ghost touches and check multi-touch contacts, pressure, contact size, and pointer type.
Open toolDisplay & network
Screen Test
Use 13 full-screen patterns to find dead pixels, bleed, clouding, banding, tint, and scaling issues, then measure refresh rate.
Open toolInternet Speed Test
Measure download and upload speed, latency, jitter, packet loss, and bufferbloat, with scores for streaming, gaming, and calls.
Open toolBrowser information
Browser & Device Info
See browser, engine, OS, screen, viewport, hardware hints, input support, locale, preferences, connection, and user-agent details.
Open toolBrowser Feature Check
Check modern CSS, camera, microphone, media, input, storage, worker, sharing, fullscreen, and permission support in this browser.
Open tool