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Real browser measurements. No invented hardware data.

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39 free online device tests

Free phone and PC testing tools

Find CPS, reaction, mouse Hz, keyboard ghosting, audio sync, motion blur, mic, speaker, touch, display, CPU/GPU, RAM, and internet tests.

6 tests

AudioSpeaker Test OnlinePlay a controlled tone through the left, right, or both audio channels.InteractiveOpen AudioVolume Test OnlineCheck whether browser and device volume changes affect a controlled tone.InteractiveOpen AudioHeadphone Left & Right TestVerify stereo left, right, and center playback with controlled tones.InteractiveOpen AudioAudio Frequency TestGenerate selectable tones to check audible playback across frequencies.InteractiveOpen AudioMicrophone Test OnlineView live input level and waveform after granting microphone permission.Interactive · permission requiredOpen AudioAudio Video Latency & Sync TestAlign a visual flash and audio beep to estimate the correction that feels synchronized to you.1 to 3 minutesOpen