Client Inspector Online — Free Client Inspector Tool

CodexFuse Team · 2026-10-27T08:15:01.477Z · 10 min read min read

Check your browser, OS, screen and hardware in seconds with the free Client Inspector tool, and get a diagnostic report you can share with support.

A client inspector is a free online tool that shows what your browser, device and screen look like to the websites you visit. It reads your browser version, operating system, screen size, hardware details and user-agent string, then lays them out in one clear report. You do not have to dig through settings menus or run commands to find any of it.

That report matters most when something looks wrong on screen and nobody can explain why. A page that renders perfectly on your laptop may break on a client's phone, and a support agent cannot fix what they cannot see. This tool closes that gap in seconds.

What Does a Client Inspector Actually Check?

A client inspector checks the details a website normally receives about your device, and presents them in plain language. It reads your browser name and version, your operating system, your screen resolution and viewport size, your pixel ratio and colour depth, your processor cores and device memory, and whether cookies and your connection are active. It also shows your raw user-agent string, the exact identifier your browser sends to every site.

None of this requires installing software. The tool reads values your browser already exposes, so the report reflects the real environment a website sees, not the specification printed on the device box.

• Browser details first: version numbers matter, because a feature that works in a current browser may fail silently in an older one.
• Screen details second: resolution alone is not enough; the viewport, the visible area after toolbars, decides how a page lays out.
• Hardware details third: low device memory and few processor cores explain sluggish pages that have nothing wrong with their code.
• Connection details last: a page that never finishes loading is often a connection or cookie problem, not a design problem.

A Real Support Ticket, Solved in One Report

Consider a fictional scenario, typical of the tickets support teams see every week. Sara runs a small online tutoring business, and a parent emails her: the booking calendar on her site shows blank boxes instead of dates, but only on one laptop. Sara's own laptop shows the calendar perfectly, so she cannot reproduce the fault.

Instead of guessing, Sara asks the parent to open the Client Inspector tool and click Export JSON Report. The report shows the parent on an older browser, with a narrow viewport, low device memory and cookies disabled for the site. Sara, by contrast, uses a current browser with cookies enabled, which is why she never saw the problem.

The cause turns out to be simple: the calendar needs cookies to hold the selected date, and the narrow viewport was hiding its navigation arrows. The fix takes minutes, enabling cookies for the site and updating the browser, with no code change needed. Without the report, this ticket could have bounced back and forth for days. With it, Sara had the answer in a single exchange.

How to Use the Client Inspector Tool

Using the tool takes less than a minute, because there is nothing to install and nothing to configure. Open the tool page and your browser, operating system, screen and hardware details appear automatically. From there, three buttons do the useful work.

1. Check the details: scan the browser, screen and hardware sections for anything outdated or unusual, such as an old browser version or a very narrow viewport.
2. Copy My IP: copy the displayed IP address, if you need to share it with a support team or check it against a blocklist.
3. Copy String: copy the raw user-agent header, the most useful single line to paste into a support ticket.
4. Export JSON Report: download the full diagnostic report as a JSON file, which you can attach to a ticket or email instead of sending screenshots.

The JSON export is what makes the tool practical for teams. A screenshot shows what you saw; a JSON report shows what the browser reported, in a format a developer can search, compare and file alongside the ticket.

Sharing a Report Without Oversharing

Share the exported file directly with the person fixing the problem, not in a public forum or comment section. If you only need one detail, copy just that line, such as the user-agent string, rather than the whole file.

What Does This Tool Not Tell You?

This tool does not diagnose your internet provider, your website's server or malware on your device, and it does not fix anything by itself. It reports what your browser and device expose at that moment, so it is a starting point for diagnosis, not a repair tool or a security scanner. Anything beyond the browser's own report needs a different check.

• Server problems stay hidden: if a site's server is down, your browser report will look normal, because the fault is not on your device.
• Network faults stay vague: connection status tells you whether you are online, not why a particular route or provider is slow.
• Security threats stay out of scope: a clean browser report says nothing about malware, phishing pages or compromised extensions.
• Values are momentary: memory, connection state and viewport change as you resize a window or open tabs, so re-run the check if conditions change.

Browser Problem or Server Problem? How to Tell Them Apart

Once you have a report, the next question is where the fault lives. If the fault follows one device, work through the browser report. If it follows the site across every device, stop tweaking browsers and look at the site itself. That single distinction prevents hours of wasted effort.

For a deeper read, the free browser info viewer covers the same ground from a different angle, and the browser feature checker tests which features your browser supports. If the fault is not your device, try the server status checker, and the browser fingerprint checker shows how identifiable your configuration is.

When the Problem Is Your Website, Not Your Browser

Sometimes the report clears your device completely, and the fault is still there on every machine you try. At that point the honest move is to stop debugging browsers and fix the platform underneath the site.

On CodexFuse, the workflow is concrete. You create an account, bring your site across with managed migration help, point your domain, and let the platform team look after the server, updates and backups while you run your business. You pay with credits for the services you actually use, on a pay-as-you-go basis, instead of stacking separate subscriptions for hosting, email, security and backups. When a fault appears, you can share a diagnostic report with a team that already controls the hosting side, so the conversation starts from evidence instead of blame.

• One place to check: hosting, email, security and backups sit on one platform, so a fault cannot hide between providers.
• Managed upkeep: server care and updates are handled for you, instead of becoming a second job.
• Credits, not subscriptions: you use credits for what you need, which suits businesses whose needs change month to month.
• Evidence-led support: a diagnostic report plus a managed platform means support can act, not just ask for more screenshots.

This only fits if the problem genuinely lives on the server side. If your report shows an outdated browser or blocked cookies, fix that first; moving hosts will not repair a browser setting.

Frequently Asked Questions

What is a client inspector?

A client inspector is a free online tool that displays your browser version, operating system, screen resolution, hardware details and user-agent string in one report. It reads values your browser already exposes, so you can share exact diagnostic facts with a support team instead of describing your device from memory.

Is this tool free?

Yes, it is free to use. Open the tool page, your details appear automatically, and you can copy the displayed IP address or user-agent string, or export the full report as a JSON file, without installing anything.

Does a client inspector show my real IP address?

No, not in this tool. The IP, ISP and location shown are a simulated sample, not a live lookup of your real address. If you need your real IP for a network or abuse report, use a dedicated IP lookup tool instead.

Can this tool fix a broken website?

No, it cannot fix anything by itself. It diagnoses by showing what your browser and device report, which tells you whether the fault is browser-side or server-side. The actual fix, such as updating a browser, enabling cookies or repairing server code, is a separate step.

What should I send to support when a page breaks?

Send the exported JSON report, or at minimum the user-agent string plus the browser, screen and cookie details. That combination lets a support team reproduce the fault, while a screenshot alone usually hides the settings that caused it.

When should I check the server instead of my browser?

Check the server when the same fault appears on every device and browser you try, or when your browser report looks normal yet the page still fails. At that point the fault almost certainly lives in the site or its hosting, not in any single device.

Stop Guessing and Get the Facts First

The next time a page breaks and nobody can explain why, do not start with another screenshot or another guess. Open the tool, export the JSON report, and send the facts to whoever is fixing the problem. You will cut the back-and-forth, find the faulty layer faster, and spend your time on the fix instead of the mystery.

And if the report clears your device and points at the site itself, move that site to a platform built to carry it. Bring your hosting, business email, security and backups to CodexFuse, let its fully managed team handle the server work, and pay with credits only for what you use. Start today: run the diagnostic, then get your site onto CodexFuse and stop babysitting servers for good.