Core engine features

Decoded from detector.wasm, a portable feature-detector whose only import is engine.validate. Each row is one Wasm proposal — a "yes" means WebAssembly.validate accepts a minimal module that uses it.

Environment probes

Capabilities that live in the host, not in the engine itself — SharedArrayBuffer, streaming compilation, the BigInt↔i64 boundary, JS String Builtins, and JSPI. shared-memory-transferable also needs cross-origin isolation (COOP/COEP), which GitHub Pages does not send, so it may report "no" here even when your browser supports it.

Browser

User-Agent

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Platform

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Hardware concurrency

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Raw report