Device Info
Read-only view of your browser and screen: language, timezone, CPU threads, DPR and more.
- Browser language
- Preferred languages
- Time zone
- CPU threads
- Approx. memory (deviceMemory)
- Touch points (maxTouchPoints)
- Screen resolution
- Available screen area
- Color depth
- Device pixel ratio
- Online status
- Cookies enabled
User-Agent string
All values are read from your own browser once, on page load. Nothing is stored or sent.
How to use it
- Open the page — the values are collected once at load from your own browser's APIs.
- Read the grid: language, time zone, CPU threads, memory, touch points and screen details.
- Check the status row for the online flag and whether cookies are enabled.
- Copy the User-Agent string from the box at the bottom if you need it for a bug report.
- Reload the page after changing displays or zoom to see updated values.
Common use cases
- Filing a bug report — grabbing resolution, DPR and UA so developers can reproduce the issue.
- Checking responsive layouts — seeing the resolution and pixel ratio a test device actually reports.
- Privacy awareness — seeing exactly what any website can read about your device without asking.
- Verifying browser settings — confirming language preferences, cookie state and time zone.
Why it stays private
Every value comes from your own browser's read-only APIs and is displayed locally. The page stores nothing and sends nothing — it is, in effect, a mirror of what any site could see.
FAQ
Q: Why does the memory field show a dash?
A: The deviceMemory API is not available in every browser (Firefox and Safari do not expose it), and even where it exists the value is a coarse approximation such as 4 or 8 GB. Missing means the API is absent, not that the value is zero.
Q: Is the CPU thread count exact?
A: hardwareConcurrency reports what the browser chooses to expose — usually the logical core count, sometimes a capped value. It is indicative, not a benchmark.
Q: Does the resolution reflect the actual monitor?
A: It reports the screen size in CSS pixels with browser zoom applied, and devicePixelRatio separately. Multiple monitors report the one the window is on.
Your data stays on this device
Device Info runs 100% locally. Everything you paste or drop is processed by your own browser and never transmitted. Nothing is stored on our servers — close the tab and it is gone.
Nothing you type is sent to a server, logged, or used for analytics. The page works even with your network disconnected after first load.