What is My Browser

Instantly detect and display your critical system information including browser name, exact version, user agent string, operating system, cookie status, and screen resolution for easy troubleshooting.

Your Browser Mozilla
Browser Version 5.0
User Agent Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Platform unknown
Languages
Cookies Cookies Disabled
Screen

    About What is My Browser

    What Is My Browser? Free System Info Tool

    Whenever you encounter a broken website, a video that won't play, or a web application that refuses to load, technical support will inevitably ask you a seemingly simple question: "What browser are you using?" Our free What Is My Browser tool gives you the exact answer instantly.

    For the average user, keeping track of exact software versions, operating system builds, and user agent strings is confusing. You might know you are using "Chrome" on a "Mac," but a developer trying to fix a bug needs to know if you are on Chrome version 119, running on macOS 14, with a specific screen resolution and color depth. Digging through settings menus to find this data is frustrating and time-consuming.

    We built this diagnostic utility to eliminate the guesswork. The moment you land on this page, our tool interrogates your device's HTTP headers and local environment. It instantly compiles a comprehensive, easy-to-read report detailing your specific browser, version number, raw User Agent string, operating system platform, active languages, cookie status, and precise screen metrics. You can simply copy this data and hand it directly to an IT professional to solve your technical issues faster.

    How the What Is My Browser Tool Works

    Unlike software you have to install or complex command-line prompts you have to execute, this tool operates entirely in the background the second you open the page. It requires zero technical knowledge to operate.

    Reading Your System Output

    Here is how to interpret the data our tool has instantly generated for you.

    • 1. Automatic Detection: You do not need to click any buttons or fill out any forms. The tool automatically reads the data your browser broadcasts to our server and executes a safe client-side script to measure your screen.
    • 2. Review Your Core Details: Look at the top rows of the results table. Here you will see your primary Browser name (e.g., Chrome, Safari, Firefox) and the exact Browser Version you are currently running.
    • 3. Examine the User Agent: The User Agent row displays the raw text string that your browser uses to identify itself to every website you visit. It contains detailed information about your software and hardware architecture.
    • 4. Check Your Platform and Settings: The Platform row identifies your operating system (e.g., Windows, macOS, Linux, iOS, Android). The tool also displays your accepted Languages and confirms whether Cookies are currently enabled or disabled in your settings.
    • 5. Analyze Display Metrics: At the bottom of the table, the Screen section breaks down your display hardware. It shows your total monitor resolution, your actual usable browser window size (viewport), and your screen's color depth.

    Key Features of Our Diagnostic Tool

    This utility is more than just a simple name checker. It is a comprehensive system profiler designed to give developers, IT support, and everyday users a complete snapshot of their browsing environment.

    Raw User Agent String Extraction

    Every time you connect to a website, your device sends a "User Agent" string. It looks like a confusing line of code (for example: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36...). This string tells web servers exactly how to format the page for your specific device. Our tool extracts and displays this raw string perfectly, which is the number one piece of information developers request when trying to replicate a bug.

    Instant Cookie Status Verification

    If you are trying to log into a website or use a shopping cart and it keeps failing, the most common culprit is disabled cookies. Navigating browser settings to check your privacy configurations can be tedious. Our tool actively tests your environment and immediately reports your Cookies status as either Enabled or Disabled, allowing you to quickly diagnose login and session issues.

    Comprehensive Screen and Viewport Data

    Modern websites are "responsive," meaning they change layout based on the size of your screen. If a website looks broken, it might be due to your specific screen size. Our tool uses JavaScript to pull three vital display metrics: your total physical monitor resolution, your actual active Browser Screen size (which changes if you resize your window), and your Screen Color Depth, which affects how images and gradients are rendered.

    OS Platform and Language Detection

    Software bugs are often tied to the underlying operating system rather than the browser itself. The Platform readout tells you exactly what OS environment you are in. Additionally, the tool reads your browser's preferred Languages settings (like en-US), which is crucial for troubleshooting why a website might be serving you content in the wrong language or failing to load regional formatting.

    Use Cases: Who Needs to Know Their Browser?

    While this tool is highly technical behind the scenes, the output is incredibly practical for a wide variety of users, from non-technical individuals seeking help to advanced developers debugging complex code.

    • Everyday Users Requesting Tech Support: When your bank's website won't load, you call customer service. They will inevitably ask, "Are you on a Mac or PC? What browser are you using?" Instead of guessing, you can open this tool, read the exact Browser and Platform to the agent, and dramatically speed up your support call.
    • Web Developers and QA Testers: Quality Assurance (QA) engineers spend all day trying to break websites to find bugs. When they find an issue, they have to write a bug ticket detailing the exact environment where the crash occurred. This tool gives them a one-stop dashboard to copy the exact User Agent, version, and screen size to paste directly into their bug tracking software (like Jira or GitHub).
    • Web Designers Troubleshooting Layouts: A client emails a designer saying, "The logo is covering the menu text!" The designer can't replicate the issue. By sending the client a link to this tool and asking them to share the Screen and Browser Screen (viewport) size, the designer can recreate the client's exact monitor setup and fix the CSS glitch.
    • Security and Compliance Officers: Many corporate networks require employees to use specific, updated versions of web browsers to prevent security vulnerabilities. An IT administrator can ask an employee to use this tool to quickly verify their Browser Version and ensure they aren't running outdated, non-compliant software.
    • Digital Marketers and SEO Experts: Sometimes web analytics tools report strange spikes in traffic from unknown devices. A marketer might use this tool to better understand what a User Agent string looks like and how different platforms (like Android vs. iOS) present themselves to tracking scripts, helping them better segment their audience data.

    When to Use Our Tool vs. Manual Checking

    You might be wondering why you can't just check your browser's settings menu. While you can find some of this information manually, it is scattered across different menus and often hidden from plain view. Here is a breakdown of why our unified tool is vastly superior.

    Information Needed Our Web Tool Manual Native Method
    Browser Name & Version Instant (Top Row) Hidden in "Help > About" menu
    Raw User Agent String Displayed clearly Requires opening Developer Tools console
    Active Viewport Window Size Calculated automatically Requires manual pixel measurement tools
    Cookie Status Tested & Confirmed Buried deep in Privacy/Security settings
    Ease of Sharing Data Copy all from one screen Requires navigating 4-5 different screens

    Tips for Using Your System Information

    Once you have this data, how should you use it? Here are a few best practices for utilizing your system information to solve problems effectively.

    Provide the User Agent for Tech Support

    When emailing an IT department or a software developer about a bug, do not just say "I am using Chrome." Copy the entire string from the User Agent row and paste it into your email. This single string gives the developer your OS, browser, engine, and version all at once, eliminating the need for back-and-forth questions.

    Check Your Viewport for Web Design

    If you are a designer checking how a site looks on a specific screen, pay close attention to the second line in the Screen output (the Browser Screen size). This shows the actual pixel dimensions of the window rendering the website, which is almost always smaller than your total monitor resolution due to toolbars and scrollbars.

    Verify Your Update Status

    Running an outdated browser is the number one cause of website incompatibility and security vulnerabilities. When you check your Browser Version, do a quick web search to see what the current stable release for your browser is.

    Security Tip: If your version number is significantly lower than the current public release, navigate to your browser's settings and force an immediate software update to protect yourself from malware and ensure maximum web compatibility.

    Frequently Asked Questions

    Browser environments can be highly technical. Here are answers to the most common questions users have regarding the data displayed by our diagnostic tool.

    This is an artifact of internet history. Decades ago, websites would only serve advanced features to the "Mozilla" (Netscape) browser. To bypass this restriction and render pages correctly, other browsers started spoofing their identity by putting "Mozilla" at the beginning of their User Agent string. The practice stuck, and now almost all modern browsers start their User Agent with Mozilla for legacy compatibility.

    "Screen size" refers to the maximum physical resolution of your monitor (e.g., 1920x1080). "Browser Screen" (also known as the Viewport) is the actual pixel area available to display a website. It is smaller than your monitor because space is taken up by the browser's address bar, tabs, bookmarks bar, and your operating system's taskbar.

    If the Cookies row says disabled, it means our server attempted to place a tiny, harmless test cookie in your browser and your browser rejected it. This usually happens if you are browsing in a strict "Incognito" or "Private" mode, or if you have manually set your browser privacy settings to block all local data storage.

    No, we do not log, store, or track this diagnostic data. The tool simply echoes the standard HTTP headers your browser is already broadcasting to the public internet, formats it into an easy-to-read table for your benefit, and discards it.

    Yes. The tool works perfectly across all devices. If you open this page on an iPhone, iPad, or Android device, it will accurately identify mobile-specific browsers (like Mobile Safari or Chrome for Android) and report the exact mobile operating system and mobile viewport dimensions.

    Color depth (usually shown as 24 or 32) indicates how many bits of data are used to represent a single pixel's color on your monitor. A higher number means your screen can display a wider range of colors, resulting in smoother gradients and more realistic images. Most modern displays operate at 24-bit (True Color) or 32-bit.

    Why Choose Our What Is My Browser Tool?

    When digital systems fail, clarity is the fastest path to a solution. Knowing exactly what software environment you are operating in takes the friction out of tech support and web development. You shouldn't have to be a computer expert or dive into hidden developer consoles just to find out your browser version or if your cookies are enabled.

    Our free What Is My Browser tool provides immediate, actionable intelligence the second the page loads. Whether you are filling out an IT support ticket, testing a new web design, or simply satisfying your own curiosity about your system specs, this utility delivers the exact data you need, formatted beautifully. Bookmark this page for the next time a developer asks for your system specs, and get your web issues solved faster.