Free Hardware Diagnostic Tools

Test your laptop and peripherals entirely in your browser.

No install. No signup. Free.

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LAPTOP DIAGNOSTICS

Battery Health

Check capacity and cycles

Thermal Profiler

Detect throttle and heat

SSD Health

Analyze SMART and speed

RAM Test

Measure speed and usage

PERIPHERALS & I/O

Controller Lab

Deep PS5/PS4 analysis

Keyboard Test

Find stuck or dead keys

Mouse Test

Check buttons and scroll

Mic Test

Audio input visualizer

Speaker Test

L/R channel frequencies

DISPLAY

Display Test

Monitor Hz and tearing

Dead Pixel Test

Find and fix stuck pixels

Webcam Test

Test camera feed and res