Measure anything.
Free browser tools to measure real device performance — mouse DPI, monitor refresh rate, internet speed, GPU, battery, input latency, storage throughput.
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GPU & WebGL Test
See your GPU vendor + WebGL benchmark in 5 seconds.
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Connection Info
See your network type, downlink, RTT — in one panel.
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Mouse DPI Analyzer
Find your real DPI by moving the mouse a known distance.
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Battery Health Check
See your laptop or phone's real battery level, charge state, and time-to-full.
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Monitor Refresh Rate Test
Verify your monitor really runs at 60, 144, 240 Hz or higher.
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