WebAI

Diagnostics

Browser capabilities

Everything here is measured directly from this page and short-lived workers. "Unknown" means a check couldn't give a clear answer — not that it won't work.

Threaded wasm readiness

unknown

Still pending — some of the required checks weren't conclusive.

  • Page isolation: no fresh, conclusive result yet. Check the WebAI COOP and COEP response headers.
  • Worker isolation: no fresh, conclusive result yet.
  • Shared memory worker use: no fresh, conclusive result yet. Check cross-origin isolation and SharedArrayBuffer availability.
  • WebAssembly threads: no fresh, conclusive result yet.

Storage numbers are browser estimates for everything this site stores — not just WebAI's files, and not free disk space.

Environment and isolation

Secure context

unknown

Whether this page is running in a trustworthy HTTPS or local context.

Waiting for measurement.

Page isolation

unknown

Runtime cross-origin isolation required by shared-memory wasm.

Waiting for measurement.

Worker isolation

unknown

Cross-origin isolation observed inside a dedicated worker.

Waiting for measurement.

WebAssembly and shared memory

SharedArrayBuffer surface

unknown

Whether the page can construct shared memory.

Waiting for measurement.

Shared memory worker use

unknown

A worker atomically changed a sentinel in page-created shared memory.

Waiting for measurement.

WebAssembly SIMD

unknown

The pinned wasm-feature-detect simd probe executed in a worker.

Waiting for measurement.

WebAssembly threads

unknown

The pinned wasm-feature-detect threads probe executed in a worker.

Waiting for measurement.

WebAssembly JSPI

unknown

The pinned wasm-feature-detect jspi probe executed in a worker.

Waiting for measurement.

WebAssembly Memory64

unknown

The Memory64 feature probe passed; this does not promise a model can allocate over 4 GiB.

Waiting for measurement.

Accelerated compute

WebGPU surface

unknown

Whether navigator.gpu is exposed on the page.

Waiting for measurement.

WebGPU worker device

unknown

Worker adapter, device, optional features, and selected compute limits.

Waiting for measurement.

WebNN surface

unknown

Whether the current navigator.ml entry point is exposed on the page.

Waiting for measurement.

WebNN default context

unknown

A worker requested the current default context with accelerated inference preferred.

Waiting for measurement.

Storage

Storage API surface

unknown

Origin storage methods exposed to this page.

Waiting for measurement.

OPFS worker access

unknown

A worker opened the origin-private file-system root without writing.

Waiting for measurement.

Origin storage estimate

unknown

Browser-estimated usage and quota for this origin, not WebAI-managed bytes or free disk.

Waiting for measurement.

Persistent storage

unknown

Whether this origin is currently protected from best-effort eviction.

Waiting for measurement.

Browser-managed AI

Prompt API · Gemini Nano

unknown

The window-only LanguageModel API's current English text availability for this browser-managed model.

Waiting for measurement.