Tool StudioYour browser, engine, OS, and full user-agent string
Load the page
Every value shows automatically, no action needed.
Check the details
Browser, engine, OS, language, and more.
Copy the user-agent string
One click copies the full raw string.
See exactly what your browser reports about itself and sends with every request it makes: browser name and version, rendering engine (Blink, Gecko, or WebKit), operating system, language settings, timezone, screen and viewport size, color depth, cookie status, touch support, live online/offline connection status, GPU renderer (via WebGL), and the full raw user-agent string. Useful for debugging browser-specific bugs, confirming what a site or API sees about your device, filing an accurate support ticket, or diagnosing a WebGL/canvas rendering issue tied to a specific graphics driver. Everything is read directly from your browser's own JavaScript APIs — nothing is sent to a server or logged.
It's commonly needed when debugging browser-specific bugs, reporting issues to developers, or checking what a website sees about your browser.
No — everything is read directly from your browser's own JavaScript APIs and never leaves your device.
A short string every browser sends as an HTTP header with each request, identifying the browser, its version, the rendering engine, and the operating system it's running on — it's how a website can tell a phone from a desktop, or Chrome from Safari, before rendering anything.
It's shown automatically at the top of this page, alongside the version number and rendering engine — no need to look it up manually.
Chrome, Edge, and Opera all use Blink; Firefox uses Gecko; Safari uses WebKit. The engine is what actually parses HTML/CSS and runs JavaScript, so two browsers on the same engine tend to render pages almost identically.
Because browser-specific rendering and JavaScript differences are a common cause of bugs that only show up for some visitors — the exact browser, version, and OS from your user-agent string is often enough to reproduce and fix the issue.
It identifies the OS family — Windows, macOS, Android, iOS, or Linux — rather than a precise build number. Modern browsers deliberately generalize the platform details in the user-agent string itself to reduce fingerprinting, so that's the most any user-agent-based tool can read.
Yes, very commonly — anyone running the same browser version on the same operating system will show an identical string. On its own, a user-agent string identifies a browser/OS combination, not an individual person.
Yes — the Connection field updates live and reflects your browser's own network status, updating immediately if you go offline or reconnect, with no page reload needed.
Yes — it reads your timezone directly from your browser's own Intl API, the same one used to format dates and times, shown alongside your language and locale settings.
Just open this page — every field populates automatically from your browser's own JavaScript APIs the moment it loads, with nothing to click or configure first.
This tool doesn't scan for vulnerabilities or malware — it reports what your browser reveals about itself (version, engine, OS). Keeping any browser updated to its latest version is generally the biggest factor in staying safe, and the version shown here is a quick way to confirm you're not running something outdated.
Benchmark results vary by workload and shift with nearly every release, so there's no single permanent answer — Chrome, Edge, and Firefox are all actively optimized and trade the lead across different benchmarks.
This page does exactly that — your browser name, version, and engine are detected automatically from the user-agent string and shown at the top, without needing to open any settings menu.
Yes — it reads the GPU renderer string your browser's WebGL implementation reports. Many browsers (Chrome especially) now show a generic ANGLE description rather than exact hardware details, as a deliberate fingerprinting mitigation, not a detection failure.
Modern browsers route WebGL through a compatibility layer (ANGLE) and increasingly report a generalized string instead of your exact graphics card model, specifically to make browser fingerprinting harder — this is expected behavior across most sites, not specific to this tool.
Measure your browser's live frames-per-second and get an estimate of your monitor's refresh rate. Free, works entirely in your browser.
See your screen resolution, browser viewport size, device pixel ratio, and estimated DPI, live. Free, works entirely in your browser.
Instantly see your public IP address. Detects IPv4 or IPv6, one-click copy. Free, no sign-up, no tracking beyond what your connection already reveals.
Test if every key on your keyboard works. Press any key and watch it light up on the on-screen layout — spot stuck, dead, or unresponsive keys instantly. Free, works entirely in your browser.