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TestOnDevice

About

A free way to check your hardware — no install, no account — built to be technically honest.

Why it exists

Most “device test” sites overstate what a browser can measure. TestOnDevice only claims what your browser can actually deliver, and clearly labels estimates, subjective checks and unsupported features.

Principles

  • Everything runs on your device. Nothing you record is uploaded.
  • Permissions are requested only after you click — never when the page loads.
  • No made-up hardware diagnoses, and no dark patterns.