My Browser Info

See which browser you are using right now. This tool reads your browser name and version, rendering engine, operating system, full user agent, languages, timezone, CPU cores, and Web API support locally — no installation, and nothing is ever uploaded.

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Browser

Browser—
Engine—
User agent

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System

Operating system—
Platform—
Languages—
Timezone—
Cookies—
Connection—

Display

CPU cores (logical)—
Device memory (approx.)—
Max touch points—
Screen summary—
Open the full Screen Resolution Checker →

Web API Support

WebHID—
WebUSB—
Web Bluetooth—
WebGPU—
Web Serial—
Web MIDI—
WebRTC—
WebAuthn—
Service Workers—
WebAssembly—
WebGL 2—
Clipboard API—

Approximate — browsers round these values for privacy.

🔒 All checks run locally in your browser. Nothing is uploaded.

What Browser Am I Using? Check Online Instantly

This browser info tool identifies your exact browser name and version, rendering engine, operating system, full user agent string, languages, timezone, CPU cores, approximate memory, and a live Web API support matrix — all in one page. Perfect for support tickets, bug reports, and compatibility testing.

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Browser & Engine Detection

Identify your exact browser — Chrome, Edge, Firefox, Safari, Opera, or any Chromium-based build — plus the engine that renders it: Blink, Gecko, or WebKit.

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Web API Support Matrix

See at a glance which modern APIs your browser offers — WebUSB, WebHID, WebGPU, WebAuthn, WebAssembly, and more — tested live, not from a database.

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System Snapshot

Operating system, languages, timezone, logical CPU cores, approximate memory, and touch support — the environment websites actually see.

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Copyable User Agent

The full user agent string in one click, ready for support tickets, bug reports, and compatibility testing.

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Works in Every Browser

No special APIs required — the page runs anywhere and simply reports what your browser exposes.

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100% Private

All detection happens locally. Nothing is uploaded, logged, or stored — no accounts, no tracking.

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Client Hints Precision

Where the classic user agent has been reduced, the page reads User-Agent Client Hints to recover the exact version, platform version, architecture, and bitness.

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Screen and Display Summary

Viewport size, screen resolution, colour depth, pixel ratio, and orientation in one block, with a direct link to the full screen resolution checker for deeper testing.

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Locale and Timezone

Preferred languages in priority order plus your resolved timezone, which is exactly the combination sites use to decide which translation and which date format to serve you.

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Cookie and Connection Status

See whether cookies are enabled and whether the browser currently reports an online or offline connection, both of which explain a surprising number of broken sign-in flows.

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Hardware Capability Hints

Logical CPU cores, approximate device memory, and maximum touch points — the coarse hardware signals a web page can legitimately read without any permission prompt.

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Instant Version Check

Get your exact browser name and version in one page load so you can answer support forms and compatibility questionnaires without digging through menus.

Supported Scenarios & Limitations

Quickly check whether Browser Info is the right tool for your needs. The lists below show exactly what this browser-based tool can and cannot do.

Works With

  • Chrome, Edge, Firefox, Safari, Opera
  • Chromium-based browsers (Brave, Vivaldi, Arc)
  • Mobile browsers (Chrome Android, Safari iOS)
  • Tablet browsers (iPad Safari, Samsung Internet)
  • Desktop Windows / macOS / Linux / ChromeOS
  • User-Agent Client Hints (Chromium high-entropy)
  • Web API feature detection (WebHID, WebUSB, WebGPU)
  • Copyable user agent string for support tickets
  • System environment snapshot (CPU, memory, timezone)
  • Screen summary with DPR and resolution

Not Supported

  • Update or install a browser (use browser settings)
  • Change browser settings or preferences
  • Remove browser extensions or add-ons
  • Fix browser security or privacy issues
  • Test browser speed or JavaScript performance
  • Detect malware, viruses, or browser hijacking

Browser Info only verifies whether input events reach the browser. It cannot determine whether a failure is caused by hardware, drivers, firmware, or the operating system.

How This Browser Info Tool Works

The tool reads what your browser reports about itself through two interfaces: the classic navigator.userAgent string, and the newer User-Agent Client Hints (navigator.userAgentData) available in Chromium-based browsers. When Client Hints are present, the page also requests high-entropy values — full version, platform, architecture, and bitness — for a precise snapshot.

The Web API matrix is generated by feature detection: the page simply checks whether each interface exists in your browser at this moment. Nothing is fetched from a remote database and no user agent parsing table is consulted, so the answers reflect your actual browser rather than a generic compatibility chart that may be months out of date. That distinction matters when a feature is partially rolled out: a detection test reports exactly what your build supports today, whereas a compatibility table can only report what was true when it was written. Nothing is installed, nothing is downloaded, and no permission prompt appears — the whole report builds in a fraction of a second, entirely on your device.

Understanding Your Browser Info Results

Interpreting the report is mostly straightforward, but two effects surprise people. First, User-Agent Reduction: Chromium browsers freeze the minor version to 0 and report Windows 10 and 11 identically, so a raw UA string is less detailed than it looks. Second, GREASE: randomized "Not A Brand" entries are intentionally injected noise, not a problem with your setup.

Values labeled approximate follow the same logic — device memory is bucketed and capped at 8 GB, and core counts are logical, not physical. None of these values is intended to be a hardware specification, and reading them as one leads to false conclusions about a machine. What they are good for is comparison: two browsers on the same computer should report identical values, so a mismatch between them usually points to a privacy extension, a compatibility mode, or an enterprise policy rather than to a hardware difference. None of this is a flaw in your browser; it is deliberate privacy engineering to make fingerprinting harder, and this page simply shows you what the web actually sees.

What the Web API Support Checks Mean

Each row in the matrix below is tested live in your browser. These interfaces power the modern web — and the hardware-testing tools on this site: WebHID and WebUSB drive our device identification pages, while WebRTC, WebAssembly, and WebGL underpin audio, video, and graphics tests.

A missing API does not mean your browser is outdated — Firefox and Safari intentionally skip interfaces like WebUSB and WebHID for security reasons. It only means features built on that specific API cannot run.

API What it powers
WebHID Communicate with keyboards, mice, and other HID devices
WebUSB Talk to connected USB devices such as printers
Web Bluetooth Test and connect to nearby Bluetooth Low Energy (LE) devices
WebGPU Modern low-level graphics and compute
Web Serial Read and write to serial ports
Web MIDI Connect MIDI instruments and controllers
WebRTC Real-time audio, video, and data channels
WebAuthn Passkeys and hardware security keys
Service Workers Background processing and offline apps
WebAssembly High-performance code in the browser
WebGL 2 Hardware-accelerated 3D and 2D graphics
Clipboard API Programmatic copy and paste
File System Access Read and write local files with permission
Web Share Hand content to the operating system share sheet
Payment Request Native checkout and saved payment methods
Screen Capture Record or share the screen and windows

Why Check Your Browser Info Online

"What browser am I using?" sounds like a question with an obvious answer — until you need it for a support ticket, a bug report, or a compatibility check and realize you are not sure of the exact version. This page answers it in one glance, with the user agent string ready to copy for pasting into tickets or test matrices.

It is also a quick environment report for developers and IT staff: engine, platform, languages, timezone, and API availability in one place — useful when reproducing a bug report, verifying that a colleague’s browser supports a feature you are about to ship, or documenting an environment without asking anyone to open developer tools.

Common Browser Info Questions

The situations this page clarifies most often:

My browser version looks frozen

Since Chrome 101, Chromium freezes the UA minor version at 0 (for example 126.0.0.0). It is not an error — it is User-Agent Reduction. This page recovers the exact version through Client Hints when your browser supports them.

Websites show different browser info than this page

User agent strings can be overridden by browser settings, privacy extensions, or enterprise policies, and some sites use different detection methods. This page reads both the classic UA and Client Hints and prefers the more precise source.

How do I update my browser?

Chrome/Edge: open chrome://settings/help (or edge://settings/help) and wait for the check; Firefox: Settings › General › Firefox Updates; Safari: update macOS via System Settings › Software Update.

Device memory shows 8 GB but I have more

navigator.deviceMemory is capped at 8 GB and bucketed for privacy — every machine with 8 GB or more reports the same value. It is a fingerprinting protection, not a measurement of your RAM.

"Not A Brand" appears in my user agent

GREASE entries are randomized tokens Chromium deliberately injects into its brands list to keep parsers honest. They change between versions and mean nothing — you can safely ignore them.

The browser name shown is not what I installed

Many privacy browsers deliberately disguise their identity, and Edge, Opera, Brave, and Vivaldi all share the Chromium core. This page prefers the product-specific token over the generic Chrome token, but a browser that intentionally hides itself cannot always be identified with certainty.

My languages are listed in an unexpected order

The list reflects your browser language priority, which is what sites use to choose a translation. If a language you do not read appears first, reorder the preferred languages in your browser settings rather than on any individual website.

CPU cores or memory look lower than expected

Both values are deliberately coarse. Device memory is bucketed and capped at 8 GB, and the core count is logical rather than physical, so a processor with six physical cores and hyper-threading reports twelve. Neither number is a reliable hardware specification.

A feature shows as unsupported but works on another site

Some APIs are only exposed in a secure context, so an HTTPS page can use them while an HTTP page cannot. Others are restricted in private windows, in embedded frames, or by enterprise policy. Compare the same page over HTTPS in a normal window before concluding the feature is missing.

Cookies show as disabled

A browser can report cookies as disabled when they are blocked for third parties only, when a content blocker is active, or when the site is being viewed in a restricted container. Check your privacy extension settings and any per-site cookie blocking rules before assuming a wider problem.

The page reports offline when I have internet

The connection value comes from the browser navigator.onLine flag, which only indicates whether a network interface is available — not whether the internet actually works. Captive portals, VPN reconnects, and corporate proxies all produce false positives here.

Privacy and Data Handling

🔒 Everything on this page is read from your browser’s own interfaces and rendered locally. No user agent, fingerprint, or system detail is transmitted, logged, or stored. No cookies are set by the tool, no permission is requested, and closing the tab erases everything.

Browser Info FAQ

What browser am I using? ▼

The answer is at the top of the tool card above — for example, "Chrome 126" or "Firefox 127", together with the rendering engine that powers it (Blink, Gecko, or WebKit). The detection combines the browser-reported user agent with the modern User-Agent Client Hints interface, so it works in Chrome, Edge, Firefox, Safari, Opera, and Chromium-based browsers alike. Scroll down for the full picture: operating system, languages, timezone, and which Web APIs your browser supports.

Is my browser up to date? ▼

This page shows the version your browser reports, which you can compare with the latest release on the vendor’s official site. A quick way to update: Chrome and Edge update automatically but you can force a check at chrome://settings/help (or edge://settings/help); Firefox checks on restart via Settings › General › Firefox Updates; Safari updates through macOS System Settings › Software Update. Browsers that are several major versions behind miss security patches — updating is one of the easiest security upgrades you can make. Most browsers update themselves automatically, so the practical step is simply to restart the browser when prompted — a pending update is usually applied only once every window has closed.

Why does my browser version look frozen or wrong? ▼

Chromium-based browsers practice User-Agent Reduction: since Chrome 101, the minor version is frozen at 0 (you will see 126.0.0.0 instead of 126.0.6478.115) and operating system details are simplified — Windows 10 and 11 both report Windows NT 10.0. Firefox reduces OS version too. The goal is to limit passive fingerprinting. If you need the exact version, Chromium browsers expose it through getHighEntropyValues(), which this page uses automatically when available — that is why the version shown here is more precise than a raw UA parse.

What does "Not A Brand" mean in my user agent? ▼

That is GREASE — deliberately inserted randomized entries. Chromium adds meaningless brand tokens like "Not A Brand;v=8" or "Not_A Brand" into the brands list, with names and positions that change between releases. The purpose is to force any parser that reads the list to handle unexpected values correctly, preventing buggy parsers from becoming entrenched standards. It is not malware, not an extension, and not an error — every Chrome, Edge, and Opera user sees a variation of it.

What do the Web API support checks mean? ▼

The capability matrix tests — in your live browser, right now — whether the interfaces behind modern web features exist: WebUSB and WebHID (talking to USB devices), Web Bluetooth, WebGPU (modern graphics), Web Serial, Web MIDI, WebRTC (real-time audio/video), WebAuthn (passkeys and security keys), Service Workers (offline apps), WebAssembly, WebGL 2, and the async Clipboard API. A green check means the API is present; it does not guarantee every sub-feature. These are the same checks that decide whether hardware-testing tools can run on this site.

Why does my Edge, Opera, or Brave browser show Chromium? ▼

Edge, Opera, Brave, Vivaldi, and many others are built on Chromium — Google’s open-source browser core — so their user agents legitimately contain Chrome tokens, and their Client Hints brands list includes both "Chromium" and the actual product name. This page prioritizes the product-specific token (Edg/ for Edge, OPR/ for Opera) so the name shown is your real browser, with the engine listed separately as Blink. Brave goes further and randomizes some hints by default for privacy. Two browsers sharing an engine behave almost identically, which is why the engine often tells you more than the product name.

Why do some sites say my browser is unsupported? ▼

Sites usually detect browsers by parsing the user agent string, and that parsing is often out of date. A browser released after the site’s detection table was written may simply be unrecognised and treated as unsupported even though it supports every feature the site needs. Comparing the capability matrix here against the site’s claim is the quickest way to tell whether the limitation is real.

Can I check the browser on my phone or tablet? ▼

Yes. The page adapts to small screens and reports whatever the mobile browser exposes, including the platform and any client hints it chooses to send. On iOS every browser uses the WebKit engine, so the reported engine will be WebKit even when the app is branded Chrome or Firefox — an important detail when diagnosing why a feature behaves differently on an iPhone compared with Android.

Is this browser information tool private? ▼

Completely. Everything you see is read from your browser’s own interfaces — navigator, screen, Intl, and feature detection — and rendered locally. No data is transmitted to a server, no fingerprint is computed, and nothing is stored after you close the tab. That stands in contrast to many "what is my browser" sites that log user agents or run analytics on the results. You can verify the behavior yourself: load the page, disconnect from the internet, and it still works.

Why do some values say "approximate"? ▼

Browsers deliberately round or cap details that could identify you. Device memory (navigator.deviceMemory) is reported as a rough bucket — 0.25, 0.5, 1, 2, 4, or 8 GB — and never exceeds 8, even on a 32 GB machine. CPU core counts reflect logical processors as the browser sees them, which can differ from physical cores. Operating system versions come from reduced user agents or Client Hints and may be coarse. These approximations are privacy features, not bugs.

What is User-Agent Client Hints and why does it matter? ▼

Client Hints are a newer, structured alternative to the long user agent string. Instead of one opaque line, the browser exposes a set of labelled fields such as brand list, full version, platform version, architecture, and bitness, and it may withhold the high-entropy values unless a site asks for them. This page reads whatever your browser chooses to expose, which is why Chromium browsers here show more precise detail than Firefox or Safari.

Does this page fingerprint me? ▼

No. This page reads only the same information any website can obtain from standard browser APIs — user agent, screen size, supported features — and combines nothing into a unique identifier. There are no cookies, no canvas fingerprinting, no font enumeration, and no analytics. The page works identically offline, which is the simplest proof that nothing is sent anywhere.

Quick Summary

Browser Info is a free online tool that answers "what is my browser?" instantly: browser name and version, rendering engine, operating system, full user agent string, languages, timezone, CPU cores, approximate device memory, and a live Web API support matrix covering WebHID, WebUSB, WebGPU, WebAuthn, and more. It works in every modern browser — with extra precision in Chromium-based ones via Client Hints — and processes everything locally, so nothing you see here ever leaves your device. Use it to fill in a support form accurately, to confirm that a feature you are about to rely on is genuinely available, to compare two browsers on the same machine, or simply to answer the question of which browser you are actually running right now.