Developer & IT

Check if your internet is working and how healthy it is. See online status in real time plus ping, jitter, and a quality rating to judge connection stability.

Check which Web APIs your browser supports. Scans 105 features across storage, graphics, audio, network, sensors, hardware, and more.

Generate and parse User Agent strings for any browser, OS, and device. Built for developers, QA testers, and SEO work, with bulk generation and side-by-side comparison.

See what browser, device, OS, and system settings you are using. Reads your User Agent, screen, GPU, and hardware locally, with a built-in UA parser and JSON export.

Look up any public IP address to see its country, city, ISP, and coordinates, and view the approximate location on an interactive map. Supports IPv4 and IPv6.

See your public IP address the moment the page loads, with your IPv4 and IPv6, location, ISP, and network details shown on an interactive map.

Run a touch screen test in your browser to find dead zones, check multi-touch support, and gauge accuracy. Grid mode for full coverage, draw mode for tracking.

Test your display in the browser with 12 categories of full-screen patterns: find dead pixels, check uniformity and gamma, spot banding and ghosting, and try the burn-in fix.

Test your laptop touchpad in the browser - check taps, clicks, scroll, pinch and multi-touch gestures, find dead zones, and measure its size in real time.

Test your monitor's refresh rate with visual animations. Compare simulated Hz against your native rate and spot frame drops instantly.

Calculate a display's physical width, height, and pixel density (PPI) from its diagonal size and resolution, then compare monitors, laptops, tablets, and phones side by side.

Find out your screen resolution and viewport size instantly. See pixel ratio, color depth, aspect ratio, and the matching CSS breakpoint.