Device Info / Spec Report
Everything this browser reports about your device — and what it cannot see.
What a browser cannot see
- —The processor model, its clock speed, or its temperature
- —How much memory is installed, beyond a capped and rounded hint
- —Storage capacity, free space, or drive health
- —The graphics card model — beyond what the GPU driver chooses to report to WebGL
- —Battery capacity or condition
- —The operating system version, precisely
- —Anything about other devices on your network
Any page claiming to read those from a browser is either guessing from the user-agent string or asking you to install something.
Result
Reading…
Everything above is what this browser is willing to disclose to any page you visit — which is also the point worth taking away: this is your fingerprint, and no permission was needed for any of it. The values are deliberately coarse. Memory is rounded to a power of two and capped, the thread count is not a core count, and the graphics string is whatever the driver chooses to say. Nothing here is a hardware specification, and the list below is why.
What this cannot tell you
- Reads what the browser exposes to any page. It cannot read your processor model, installed memory, storage, temperatures or battery condition — no web page can.
- The values browsers do report are deliberately coarse: memory is rounded to a power of two and capped at 8 GB, and the thread count is not a core count. Both are reduced specifically to make fingerprinting harder.
- The graphics string comes from the GPU driver through WebGL, and some browsers return a generic name on purpose.
- Nothing here is transmitted. It is read in the page and shown to you — which is also the point: this is what every site you visit can read without asking.
Take this with you
How this calculation works
The page reads the values a browser exposes to any site: screen geometry and pixel ratio, the thread count, a rounded memory hint, the graphics string the driver gives WebGL, languages, time zone and touch support. Then it lists what cannot be read at all, which is most of what people come here for — processor model, installed memory, storage, temperatures, battery condition. That second list is the reason this page is worth reading: the tools that claim to check your specs from a browser are reading the same handful of values and guessing the rest from the user-agent string.
What the results mean
- CPU threads
- Logical processors the browser admits to. Not a core count, and some browsers cap or round it.
- Memory hint
- Rounded to a power of two and capped at 8 GB regardless of what is installed. A machine with 64 GB reports 8.
- Graphics
- What the GPU driver tells WebGL. The closest a browser gets to naming hardware, and it is a string the driver chooses.
- This is your fingerprint
- Every value here is readable by any site without permission. Together they are often enough to distinguish one visitor from another.
Common problems and fixes
- The memory figure is wrong
- It is capped at 8 GB and rounded to a power of two by design, to limit fingerprinting. It is a hint for deciding how much to load, not a specification.
- It shows fewer cores than I have
- The value is logical processors as the browser reports them, and several browsers cap it. It is also not the same as physical cores on a machine with simultaneous multithreading.
- I need my real specs
- They come from the operating system: system information on Windows, About This Mac on macOS, or the equivalent on Linux. No web page has access to them.
Frequently asked questions
Can a website see my computer specs?
Only a small, deliberately coarse set: screen size, a capped memory hint, a thread count, the graphics driver string, languages and time zone. It cannot see your processor model, how much memory is installed, your storage, your temperatures or your battery condition. Sites claiming otherwise are guessing from the user-agent string, which says what browser and platform you use and nothing about the hardware.
Why is my RAM reported as 8 GB when I have more?
Because the value is capped there on purpose. It exists so a site can decide whether to load a heavy feature, not to inventory your machine, and an exact figure would be another distinguishing value for fingerprinting. It is rounded to a power of two for the same reason.
Is any of this sent anywhere?
Not by this page — it is read and displayed locally. The uncomfortable part is that every other site can read the same values without asking, which is worth seeing laid out.
Put this on your own site
Free to embed, no attribution required beyond the source link the frame carries itself. It runs entirely in your visitor's browser, sets no cookies and loads no third-party script.
<iframe src="https://runthetests.com/embed/what-are-my-specs/" width="100%" height="560" style="border:1px solid #e5e5e5;border-radius:8px" title="Device Info / Spec Report" loading="lazy"></iframe>
Preview it at https://runthetests.com/embed/what-are-my-specs/. Embedded pages are marked noindex, so yours stays the canonical copy — not this one.