Browser Web API Feature Inspector

Detect support for modern browser APIs including WebGL, Web Workers, Service Workers, WebAssembly, and Storage.

How It Works & Processing Standards

Detect support for modern browser APIs including WebGL, Web Workers, Service Workers, WebAssembly, and Storage.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 100,000 characters

Browser Web API Feature Inspector is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use Browser Web API Feature Inspector

  1. 1
    Run Feature DetectionRun browser feature detection checks.
  2. 2
    Inspect Support MatrixReview green checkmarks for supported Web APIs and capabilities.

Common Use Cases

  • Verifying client browser capabilities for PWA apps, testing WebGL game support, and web compatibility testing
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