Local diagnosticNo upload

Check what this browser can expose.

Run a quick local check for common browser-game building blocks. Results stay in this tab and do not prove that any specific game will load, run well, or accept your files.

01 / This browser

Capability signals.

Run the check to inspect this browser.

WebAssembly

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Needed by many compiled browser engines.

WebGL 2

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A common graphics baseline for 3D browser projects.

WebGPU

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A newer graphics API; only some projects use it.

Cross-origin isolation

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Required by some threaded builds that use SharedArrayBuffer.

Gamepad API

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Lets a page detect supported controllers after user interaction.

Logical processors

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A browser-reported hint, not a performance benchmark.

Device memory hint

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An approximate browser value when the browser exposes one.

Site storage estimate

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Approximate space available to this site origin.