System & Browser Tests
Device info, GPU, benchmarks, storage and browser capabilities.
See the device and browser details your browser exposes — platform, screen, cores, memory hint and more. No hidden fingerprint.
A capability report for your browser — storage, workers, WebGL/WebGPU, media and permissions APIs — as best-effort detection.
Render tens of thousands of animated points with WebGL and sample frame times at several quality levels. Browser-specific, not a health check.
A searchable matrix of Web API support — supported, unsupported or permission-required — with no automatic prompts.
Run integer, floating-point and hashing workloads in the background for a browser-specific CPU score. Abortable, no external database.
Request a WebGPU adapter on click and read its features and limits, with a clean fallback when unsupported.
Measure memory allocation and throughput in the background with a strict cap. Browser memory performance, not RAM health.
Measure 2D graphics rendering performance with moving shapes and text at several quality levels, reporting frame-time percentiles.
List your cameras, microphones and speakers with enumerateDevices, revealing names only after permission. Updates on plug/unplug.
Detect WebGL 1/2 support, read limits and extensions, and render a real scene with context-loss handling.
Check that your browser’s local storage works, read your storage estimate, and time small operations.
Check offline caching, standalone mode and installability as a Progressive Web App.
Check WebAssembly support by compiling and running a tiny module locally, with compile timing.
Confirm JavaScript is enabled and check support for common modern language features, with troubleshooting if scripts are blocked.
Show the battery level, charging state and time estimates your browser exposes — never a battery health score.
Request notification permission on click and show a local test notification. We never nag after a denial.
See which common audio and video formats your browser reports it can play.
Write, read and delete a first-party cookie to confirm cookies work. No tracking, no third-party cookies.
Check your browser’s WebRTC (real-time calling) support and read its capabilities locally — no server connection, no IP-leak claims.
Test copy and paste with proper permission handling — only after you interact, never automatically on load.