Is this accurate — does it show my real CPU and GPU?

It shows what the browser is willing to report. CPU threads (logical cores) and the GPU renderer string are usually exact; device memory is rounded to a coarse value for privacy, and some browsers hide fields entirely.

Why does device memory or connection show a dash?

Those APIs (deviceMemory, NetworkInformation) are only implemented in Chromium-based browsers (Chrome, Edge, Opera). Firefox and Safari deliberately omit them, so you'll see a dash there.

Is any of this sent to a server?

No. Every value is read in your browser with standard JavaScript and rendered on the page. Nothing is uploaded, logged, or stored.

Why is my GPU shown as a generic name?

The GPU name comes from WebGL's debug renderer extension. Some browsers or privacy settings mask it to a generic string like 'Google SwiftShader' (a software fallback) when hardware acceleration is off.

Why does screen resolution differ from what I set in Windows?

The screen size is in CSS pixels; multiply by the pixel ratio to get physical pixels. A 4K display at 150% scaling reports 2560×1440 with a 1.5× ratio, for example.

System Info — What Your Browser Knows

See what your browser reports about your machine — CPU threads, memory, GPU, screen, network and locale. Read locally in the browser, nothing uploaded.

Everything below is read locally in your browser the moment this page opens — no permission prompt, nothing uploaded. It’s also exactly what any website you visit can quietly learn about your machine. Hit Copy all to grab the full report for a support ticket or forum post.

How to use

Open the page. Everything loads automatically — no permission prompt and no install. The readouts populate the moment the page opens.
Read your specs. Scan the Hardware, Display, Browser and Network groups. A dash means your browser chose not to expose that field.
Copy the report. Hit Copy all to put the whole report on your clipboard — handy for a support ticket or a forum post.

Why test this

When you're filing a support ticket, posting on a hardware forum, or checking whether a site will run well, the first question is always 'what are you running?' — and digging through OS settings for cores, GPU, and screen details is slow. This page answers it in one glance, straight from the browser that will actually run the web app or game you care about. That last part matters: a benchmark of your OS specs doesn't tell you whether hardware acceleration is even on in this browser, but the GPU string here does — if it reads as a software renderer, your browser isn't using the graphics card and pages will feel sluggish. It's also a quick privacy check: everything on this page is what any website you visit can silently read about you, with no permission prompt.

What the results mean

CPU threads is the number of logical cores the browser can use — more means smoother multitasking and faster web apps. Device memory is a coarse, privacy-rounded RAM figure (Chromium only) and caps at 8 GB even on bigger machines, so treat it as a floor. The GPU line is the real tell for performance: a real adapter name (NVIDIA, AMD, Intel, Apple) means hardware acceleration is on; a software name like 'SwiftShader' means it's off and graphics will be slow. Screen resolution is in CSS pixels — multiply by the pixel ratio for true physical pixels. Connection type and downlink (Chromium only) estimate your network class, useful for diagnosing slow loads. A dash anywhere just means your browser declined to expose that field; it isn't an error.

FAQ

Is this accurate — does it show my real CPU and GPU?: It shows what the browser is willing to report. CPU threads (logical cores) and the GPU renderer string are usually exact; device memory is rounded to a coarse value for privacy, and some browsers hide fields entirely.
Why does device memory or connection show a dash?: Those APIs (deviceMemory, NetworkInformation) are only implemented in Chromium-based browsers (Chrome, Edge, Opera). Firefox and Safari deliberately omit them, so you'll see a dash there.
Is any of this sent to a server?: No. Every value is read in your browser with standard JavaScript and rendered on the page. Nothing is uploaded, logged, or stored.
Why is my GPU shown as a generic name?: The GPU name comes from WebGL's debug renderer extension. Some browsers or privacy settings mask it to a generic string like 'Google SwiftShader' (a software fallback) when hardware acceleration is off.
Why does screen resolution differ from what I set in Windows?: The screen size is in CSS pixels; multiply by the pixel ratio to get physical pixels. A 4K display at 150% scaling reports 2560×1440 with a 1.5× ratio, for example.