inputprobe DPI Test
Measure your mouse's real DPI/CPI in-browser using a physical reference.
Free - Free to use in your browser; no signup required and no data is uploaded (client-side processing).
About inputprobe DPI Test
Browser-based utility that measures your mouse's real DPI (CPI) by comparing movement counts to a known physical reference (bank card, A4, US Letter). Runs entirely client-side (nothing is uploaded) and reports measured DPI, spread, and alignment error. Uses three-pass steadiness checks, an optional alignment test across different reference lengths to solve placement bias, and includes guidance for disabling pointer acceleration. No sign-up or installs — just open in your browser and drag along the reference.
Key Features
- Measures real mouse DPI/CPI against a physical reference (bank card, A4, US Letter)
- Displays spread and alignment error; performs three-pass steadiness checks
- Optional alignment test using different reference lengths to remove placement bias
- Runs entirely in the browser — client-side processing, nothing uploaded
- Includes instructions for disabling pointer acceleration and interpreting results
Who is this for?
Gamers, esports players, PC hardware enthusiasts, and anyone who needs to verify or calibrate mouse DPI/sensitivity.
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FreeFree to use in your browser; no signup required and no data is uploaded (client-side processing).
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