Web browser
Checking…
Reading your browser details.
What Am I Using?
Your browser, operating system, screen details, IP address and internet provider, all in one place. Copy a report for technical support.
Browser & device check
Operating system
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Reading your device details.
Public IP address
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The address this website sees.
Want to mask the IP websites see? Explore NordVPN (opens in a new tab)Affiliate ad. We may earn a commission.
Getting help with a technical problem?
Give your support team useful details in one go. Review them before you share.
- Location (estimated)
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- Weather: checking…
- Forecast near this estimated location. Data from MET Norway, CC BY 4.0, summarised.
Location is approximate. A VPN may show its server and network provider.
—Mbps download
Partial estimate
- Upload
- — Mbps
- Latency
- — ms
- Jitter
- — ms
Ready when you are. No automatic test.
Uses up to 80 MB of test data.
Network overhead is additional. Starting shares your IP and test measurements with Cloudflare. Privacy details.
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Powered by Cloudflare’s open-source engine · About your results
These are details reported by your browser. Some versions are hidden or simplified for privacy. Why might a result be different?
Supporting someone else? We actively encourage helpdesks, IT teams and anyone helping a friend to share www.whatamiusing.com. Ask them to open it in the browser causing the problem, then review and paste their support details into your ticket or email.
Screen and browser settings
No app or account neededScreen & browser window
- Screen size (CSS pixels)
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- Browser window (CSS pixels)
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- Device pixel ratio
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- Colour depth
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Device & settings
- Device type (estimated)
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- Time zone
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- Browser language
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- JavaScript
- Enabled
- Browser cookie setting
Advanced: user agent & detection method
The user agent is a description your browser sends to websites. It may simplify your device details or imitate another browser.
Open the user-agent checker and explanation.
Checking…- Browser detection
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- System detection
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Device and connection help
A few practical guides to make sense of the details above.
What to send to technical support
The details that help someone diagnose a problem, without sharing more than you need.
Read the guideFind and update your browser
Check your version and use the browser maker’s own update instructions.
Read the guideA website won’t load. Now what?
A short sequence of checks to narrow down a connection or browser problem.
Read the guideBrowser and device questions
What does What Am I Using? show?
It shows the browser and operating system your device reports, the public IPv4 and IPv6 addresses we can verify, an estimated-area map, an optional internet speed test, and screen and browser settings that can help with technical support.
Is this tool free?
Yes. You can use the checker and create a support report without an account or payment. Advertising and clearly labelled affiliate links may help fund the site.
Why does it say Windows 10 or 11?
Those systems can use the same traditional user-agent string. When supported, Client Hints help distinguish them. Otherwise we show the uncertainty instead of guessing. Check your Windows version on your computer.
Are there other free tools here?
Yes. Test your webcam and microphone, create QR codes, look up domains, convert text and dates, and more. Open More tools above, or browse the footer. The full FAQ covers the whole collection.