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The What Is My Browser tool is a straightforward browser fingerprinting utility that reads the user agent string and other metadata your browser naturally sends to every website. Think of it as a mirror for your browser. It reflects back exactly what web servers see when you connect. No data is stored, no scripts are injected, and no cookies are set beyond what is strictly necessary for the page to function.
This tool exists because millions of people search for their browser version every month, often when something breaks. A site might say your browser is outdated, a web app might not load correctly, or tech support might ask what version of Chrome you are on. Instead of digging through settings menus that change with every update, you land here and see everything immediately.
Web developers, QA testers, IT support professionals, digital marketers, and everyday users all benefit from this tool. If you have ever needed to fill out a bug report, verify a browser update, or understand why a website looks different from what your colleague sees, this page was built for you.
A browser detection tool reads the information your browser automatically shares when it connects to any web server. Every time you open a webpage, your browser sends an HTTP request that includes headers. One of those headers is the User Agent string, a line of text that identifies the browser name, version number, rendering engine, and operating system. Our tool decodes this string and displays it in a human readable format alongside additional details like screen resolution, language preferences, cookie status, and JavaScript capability.
The user agent string has existed since the earliest days of the web. Mosaic, one of the first graphical browsers, introduced the concept in 1993. Netscape Navigator followed, and then Internet Explorer. Over time, browser makers began pretending to be each other to avoid being blocked by websites that checked for specific browsers. This is why Chrome's user agent string still mentions Safari, and why Safari mentions Gecko like Firefox. The history of user agent strings is a fascinating tale of compatibility wars and clever workarounds that still affect how we detect browsers today.
When you visit our tool, a lightweight JavaScript function runs entirely in your browser. It accesses the navigator object, a built in browser API that exposes properties like navigator.userAgent, navigator.platform, navigator.language, and screen dimensions. All this information is processed locally. The page formats it into the clean display you see. Nothing leaves your device. No server side processing occurs for the detection itself.
The detection engine relies on the Navigator Web API, the Screen API, and the Window object. We parse the user agent string using pattern matching against known browser signatures. Each major browser has identifiable markers. Chrome contains "Chrome" and "AppleWebKit", Firefox contains "Gecko" and "Firefox", Safari contains "AppleWebKit" but not "Chrome", and Edge contains "Edg". We map these patterns to the correct browser name and version. The operating system is detected via navigator.platform and additional clues in the user agent.
Browser detection is essential for web development, quality assurance, cybersecurity, and digital forensics. Developers use it to debug rendering issues that only appear in specific browsers. Security teams check user agent data to spot anomalies that might indicate bot traffic or spoofed requests. Support technicians ask users to check their browser version to narrow down the source of problems. Without browser detection, the web would be far harder to build and maintain.
Speed is the primary advantage. You get results the instant the page loads. Accuracy is another. We parse user agent strings carefully to avoid common misidentification errors. Privacy is a core design principle. We do not log, store, or transmit your browser data. The tool is also universally compatible. It works on Chrome, Firefox, Safari, Edge, Opera, Brave, Samsung Internet, and virtually any modern browser including mobile browsers on Android and iOS.
User agent strings can be spoofed. Some browsers or extensions let users change their user agent, meaning the reported browser may differ from the actual browser. Our tool also cannot detect every possible browser variant. Niche or heavily customized browsers may report as something generic. Screen resolution detection may be affected by zoom levels, device pixel ratios, or multiple monitors. We display what the browser reports, which is usually accurate but not guaranteed.
Your browser details never leave your device. The detection runs entirely client side. We do not use tracking cookies for the detection feature. We do not store IP addresses in connection with browser fingerprints. FreeToolr does not sell, share, or analyze individual user data for advertising purposes. The tool does not access your browsing history, bookmarks, passwords, or any personal files. It only reads the metadata your browser already makes available to every website you visit.
The detection script is minimal, typically under 5KB. It executes in under 10 milliseconds. There is no network overhead for the detection itself. The page loads quickly and the results appear immediately. We designed this tool to be lightweight and fast, with no unnecessary dependencies or bloated frameworks that slow down the experience.
FreeToolr builds tools that respect your time and your privacy. Our browser detection tool is permanently free, contains no advertisements that track you, and delivers results without requiring you to click through multiple screens or dismiss popups. We are part of a larger ecosystem of 500 plus free tools covering SEO, development, content creation, and more. When you use one FreeToolr tool, you have access to hundreds more, all built with the same commitment to simplicity and usefulness.
Software development teams use browser detection during cross browser testing. Ecommerce companies check browser stats to prioritize which browsers to support. Digital marketing agencies use browser data to understand their audience demographics. IT help desks use it to troubleshoot employee issues. Educational institutions use it to verify that students are using compatible browsers for online testing platforms. Government websites use browser detection to display appropriate accessibility features.
Google is gradually freezing and then reducing the user agent string through its User Agent Client Hints initiative. This means traditional user agent parsing will become less detailed over time. Newer APIs will provide specific information like brand and version through secure headers. Our tool will evolve alongside these changes, adopting Client Hints detection as browsers implement the standard. Browser fingerprinting is also becoming more sophisticated, though privacy regulations like GDPR and CCPA continue to shape how much data websites can collect without consent.
Identifies Chrome, Firefox, Safari, Edge, Opera, Brave, Samsung Internet, and over 30 other browsers with high accuracy.
Displays the complete version string including major, minor, build, and patch numbers so you know exactly what you are running.
Shows your OS name and version including Windows, macOS, Linux, Android, iOS, ChromeOS, and various distributions.
Reports your current screen width and height in pixels along with color depth and pixel ratio for retina and high DPI displays.
Lists the language codes your browser sends to websites, showing your primary language and any secondary preferences.
Indicates whether cookies are enabled or disabled in your browser, a common troubleshooting step for web application issues.
Confirms whether JavaScript is enabled, which is critical for modern web applications that rely on client side scripting.
Shows the raw user agent string your browser sends, useful for developers who need the exact string for debugging or logging.
Distinguishes between desktop computers, tablets, and mobile phones based on operating system and screen characteristics.
Identifies the underlying browser engine like Blink, WebKit, or Gecko that powers how web pages are rendered on your device.
Copy all detected information to your clipboard with a single click, making it easy to paste into emails, tickets, or chat messages.
Use the tool immediately without creating an account, signing up for a newsletter, or providing any personal information whatsoever.
Works perfectly on smartphones and tablets with a responsive layout that adapts to any screen size without horizontal scrolling.
No distracting banner ads, no popup windows, no auto playing videos. Just the tool you came for, presented cleanly and directly.
All detection happens inside your browser. Your browser details are never sent to our servers, ensuring complete data privacy.
Navigate to freetoolr.com/what-is-my-browser using any web browser on any device. The page loads instantly with no redirects or interstitial screens.
Pro Tip: Bookmark the page for quick access when troubleshooting. Having it one click away saves time during support calls.
The tool automatically reads your browser information the moment the page finishes loading. No button click is required. Results appear within milliseconds.
Pro Tip: If the page seems blank, check that JavaScript is enabled. The detection requires JavaScript to access browser properties.
The first piece of information displayed is your browser name along with its icon. Verify that the detected browser matches what you believe you are using.
Pro Tip: If you see an unexpected browser name, you may have a browser extension or malware that is spoofing your user agent.
Look at the version number displayed. Compare this against the latest version available for your browser to determine if an update is needed.
Pro Tip: Most modern browsers auto update, but enterprise environments sometimes lock versions. If your version is more than a few weeks old, check for updates manually.
The OS section tells you which operating system and version your device is running. This helps when software has OS specific requirements.
Pro Tip: Windows users should note whether they are on 32 bit or 64 bit. Many applications require specific architecture versions.
Check the reported screen width and height. This is useful for web developers testing responsive designs or for users troubleshooting display issues.
Pro Tip: If your resolution seems lower than expected, check your display scaling settings in your operating system. Scaling above 100% reduces the reported resolution.
Look through the language settings, cookie status, JavaScript status, and user agent string. Each piece of information can help diagnose specific issues.
Pro Tip: If cookies are disabled, many websites will not function correctly. This includes login systems, shopping carts, and personalized content.
Use the Copy to Clipboard button to save all detected information at once. Paste it into an email, support ticket, or document for reference.
Pro Tip: When sharing with tech support, include your browser name, version, and OS at minimum. These three data points solve most compatibility questions.
Use the share buttons to send your browser details directly to colleagues via email, messaging apps, or social media. This speeds up collaborative troubleshooting.
Pro Tip: Some teams create a standard operating procedure where every bug report must include browser details from this tool before investigation begins.
Save the page for future use. Browser versions change frequently, and having a reliable detection tool bookmarked makes ongoing troubleshooting much easier.
Pro Tip: Create a folder in your bookmarks bar called "Debugging Tools" and add this alongside other FreeToolr utilities like the IP checker and page speed tester.
Students
Verify browser compatibility before online exams and learning management system logins
Teachers
Help students troubleshoot access issues to educational platforms and digital resources
Web Developers
Debug cross browser compatibility issues and verify rendering behavior across different engines
QA Testers
Document exact browser environments when filing bug reports and regression tickets
IT Support Professionals
Quickly identify user browser details during remote troubleshooting sessions
Bloggers
Check how their content management system renders in their current browser
SEO Professionals
Verify how search engine crawlers might see their pages and audit technical SEO factors
Digital Marketers
Ensure landing pages and email campaigns render correctly across target audience browsers
Freelancers
Provide professional grade browser environment details to clients for project handoffs
Ecommerce Store Owners
Test checkout flows and product page displays across different browser versions
Graphic Designers
Verify color accuracy and screen resolution settings for digital design work
Cybersecurity Analysts
Inspect user agent strings for signs of spoofing or malicious browser manipulation
Healthcare Administrators
Ensure HIPAA compliant web portals are accessed with compatible browsers
Government Employees
Verify secure browser configurations for accessing sensitive internal systems
Digital Agencies
Standardize browser environment reporting across client projects and team members
Remote Workers
Self diagnose connectivity issues with corporate VPNs and web based collaboration tools
Online Gamers
Check browser capabilities for web based gaming platforms and streaming services
Accessibility Specialists
Verify screen reader and assistive technology compatibility with browser configurations
Researchers
Document browser environments when accessing academic databases and research portals
Small Business Owners
Troubleshoot access to banking portals, accounting software, and business applications
Browser: Google Chrome
Version: 120.0.6099.129 (Official Build) (64-bit)
Operating System: Windows 11 (10.0.22631)
Rendering Engine: Blink
Screen Resolution: 1920 x 1080 (24-bit color depth)
Device Pixel Ratio: 1.0
Language: en-US
Cookies Enabled: Yes
JavaScript Enabled: Yes
Device Type: Desktop
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
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