Browser Info Viewer

What this tool does

The Browser Info Viewer shows what your browser reveals about your device. It reads your user-agent string and parses it into structured fields — browser name and version, operating system, device type and rendering engine — then adds the other facts a browser exposes: your language settings, platform, CPU core count, approximate device memory, touch support, whether cookies are enabled, the Do Not Track flag, your online status and your timezone.

Below that, a Browser features section feature-detects a useful set of Web Platform APIs — Canvas, WebGL, Web Audio, WebRTC, Service Workers, IndexedDB, localStorage, WebAssembly, Web Workers, Notifications, the Clipboard API, Geolocation and Web Share — and marks each one supported or not supported with both a colour and a clear ✓ or ✗ glyph.

This is, deliberately, the same information any website you visit can read. The tool exists so you can see it for yourself. It explains; it does not accuse.

When you would use it

You might land here while troubleshooting. A web app tells you your browser is unsupported, a feature silently fails, or a support agent asks “what browser and version are you on?” — this page answers all of that at once, and the Copy all button gives you a plain-text report to paste into a ticket or chat.

Developers use the feature grid to confirm an API is available before relying on it, and to check what a particular device or browser build supports. Privacy-curious users open it to understand exactly what is exposed to the sites they visit — a far healthier response than vague worry. People comparing devices use it to read core count and device memory. And anyone setting up a new browser or testing a privacy extension can use it to confirm what changed.

How to use it

1. Open the page. Everything is read from your browser and displayed at once — there is nothing to configure and no permission prompt.
2. Read the Device and browser section for the parsed user-agent and the other facts. Each row has a copy button; the full user-agent string is shown in monospace so you can copy it verbatim.
3. Read the Browser features grid. A green ✓ means the API works in this browser; a red ✗ means it does not.
4. Use Copy all to copy the complete report as plain text.

How to read the results and what to do

Most fields are informational. A few are worth acting on. If cookies or localStorage show as disabled, sites that need to remember a login or a setting will misbehave — that is usually a privacy setting or private-browsing mode, and re-enabling it fixes it. If a feature you need shows as not supported, updating your browser or switching to a current one is the fix; the tool reports the gap but cannot close it. The device memory and CPU cores values are coarse and rounded by design, so treat them as approximate.

Browser compatibility

The tool itself works everywhere, because reading these values is part of the standard browser environment. The results, of course, differ by browser: deviceMemory is exposed mainly in Chromium browsers and may read “Not exposed” in Firefox and Safari; Web Share is common on mobile and Safari but patchier on desktop. The user-agent parser is a hand-written heuristic and gives a best guess, since user-agent strings are messy and can be changed.

To see your display details, try the Screen Resolution Checker. For battery information use the Battery Status Checker, to test your camera use the Webcam Test, and to check location access see the Geolocation tool.

Privacy

Everything here is read locally and shown only on your screen. Nothing is uploaded, nothing is stored between visits and nothing is logged. This tool makes the normally-invisible visible — it is the opposite of tracking.