WebGPUStress is a browser-based benchmarking site built around a single purpose: putting a sustained graphics load on your GPU and reporting how frame rates hold up. Everything runs in the page through WebGL, so there is nothing to download or install, and the site also bundles smaller diagnostics such as refresh rate, FPS, dead pixel, anti-ghosting and WebGL/WebGPU support checks.
The core test lets you pick a duration from one to fifteen minutes, a resolution from 720p to 1440p, a quality level and a target frame rate. Results cover average FPS, 1% low FPS and frame time stability, which together show whether performance is smooth or stuttering. Quick presets like Quick Health, Thermal Soak and FPS Drop Check configure these settings for common scenarios.
It is aimed at PC gamers, hardware enthusiasts and anyone troubleshooting a new GPU, driver update or power profile. Because the site cannot read GPU temperature, it is not a substitute for monitoring software when you need thermal data, and it does not certify whole-system stability.
For comparable results, keep the browser, driver version and power mode fixed between runs, and use the same preset each time. Treat the numbers as a relative signal rather than an absolute score. In short, it is a fast, no-install way to sanity-check frame-time consistency under load.
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