My browser info: everything your browser tells websites
Not sure which browser or version you are running, what your screen resolution is, or what to tell a support agent who asks for “your system details”? This my browser info page reads everything the browser is willing to share and lays it out clearly: browser name and version, operating system, device type and model, screen, viewport and pixel ratio, colour depth, touch support, languages, time zone, cookies, Do Not Track, connection type, CPU threads, memory, the WebGL graphics renderer, and a checklist of modern web features.
Everything is read locally from the browser’s own APIs — nothing is sent to a server. Press “Copy full report” to paste a tidy summary into a support ticket, bug report or forum post, or “Copy user agent” when a developer asks for just that string. Because the same details are what advertising networks use to fingerprint visitors, the page is also a quick way to see how identifiable your setup is.
How to use the My Browser Info
- Open the page — the headline shows your browser, version and operating system straight away.
- Scroll the cards for display, language, hardware, network and feature details.
- Resize the window or rotate your phone and press “Refresh” to watch the viewport and orientation update.
- Press “Copy full report” to copy every value as plain text, or “Copy user agent” for the raw string.
- Paste the report into your support request or bug report so the other side can reproduce your setup.
My Browser Info features
Accurate browser and OS detection
Uses User-Agent Client Hints where available (Chrome, Edge, Opera, Samsung Internet) to see the real Windows 11 or Android version that the frozen user-agent string hides.
Display details
Screen and viewport size, device pixel ratio with physical pixel count, colour depth, P3 gamut, HDR, orientation and touch points.
Hardware and graphics
CPU threads, device memory, battery, storage quota and the WebGL renderer, which usually names your GPU.
Network Information
Connection type, effective speed class (4G, 3G), estimated downlink and RTT on browsers that expose them.
Feature checklist
Thirty-one capability checks — WebGPU, WebAssembly, service workers, WebRTC, passkeys, AVIF and more — so you know why a site might not work.
One-click report
Copies every value as plain text, formatted for support tickets.
Understanding the key values
- Viewport vs screen: the screen is the whole display; the viewport is the part your page actually gets, excluding toolbars. Web designers care about the viewport in CSS pixels.
- Device pixel ratio: a ratio of 2 or 3 means each CSS pixel is drawn with 2×2 or 3×3 physical pixels — why a phone can report a 390 px wide viewport while having a 1170 px wide panel.
- Rendering engine: Blink powers Chrome, Edge, Opera, Brave and Samsung Internet; WebKit powers Safari and every browser on iPhone and iPad; Gecko powers Firefox.
- Effective connection type: “4g” means the browser estimates a connection fast enough for rich content; it is based on measured speed, not on the actual radio in use.
- Device memory: browsers round it and cap it at 8 GB to reduce fingerprinting, so a 32 GB laptop shows 8 GB.
Why user-agent strings lie
The user-agent string is a historical mess — every browser claims to be “Mozilla/5.0” and most Chromium browsers also say “Safari”. Since 2023 Chromium browsers also freeze the details: the Chrome version shows as 139.0.0.0, Android devices report “Android 10; K”, and Windows always says “Windows NT 10.0” even on Windows 11. Safari on iPad reports itself as a Mac. This tool fills in the gaps with User-Agent Client Hints and touch-point checks, and the User Agent Parser explains any string in detail.
Browser fingerprinting and your privacy
Individually, values such as screen size, time zone, language, fonts and GPU renderer are harmless. Combined, they form a browser fingerprint that is often unique among millions of visitors, letting trackers recognise you without cookies. Researchers measure this in bits of entropy; a 1920×1080 screen with a common GPU adds little, while an unusual combination of language, time zone and fonts can single you out.
To reduce your fingerprint, use a mainstream browser at its default window size, enable the built-in tracking protection in Firefox, Safari or Brave, which rounds or randomises some values, and avoid installing rare fonts and extensions that change page behaviour. A VPN hides your IP address but not your fingerprint — check What Is My IP for the network side and the Screen Resolution Checker for display details.
My Browser Info FAQ
What browser am I using?
The headline at the top of the page names your browser and major version — for example “Chrome 139 on Windows 11”. The Browser card lists the full version, rendering engine and operating system underneath.
How do I find my browser version?
It is shown in the Browser card. Chromium browsers hide the exact version in the user-agent string, so this page reads it from User-Agent Client Hints when available. In Chrome you can also open Settings → About Chrome.
Why does it say Windows 10 or 11?
The user-agent string reports “Windows NT 10.0” for both. Chromium browsers reveal the real version through Client Hints, which this page uses when offered; Firefox and Safari do not provide it, so both versions show together.
Is my data sent anywhere?
No. All values come from JavaScript APIs in your own browser and stay on the page until you copy them. There is no server-side logging.
Why does my phone show a small screen resolution?
Browsers report sizes in CSS pixels, not physical pixels. Multiply by the device pixel ratio shown to get the hardware resolution — a 390 × 844 viewport at 3× is 1170 × 2532 physical pixels.
What is the WebGL renderer?
It is the graphics adapter the browser uses for 3D and hardware-accelerated content, usually naming your GPU, such as “ANGLE (Intel, Intel(R) UHD Graphics…)”. Some browsers mask it for privacy.