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Category13 tools

Mobile & Browser

Device info, camera test, storage viewer, and browser tools

Showing all 13 tools in Mobile & Browser.
Device Resolution Checker
See the exact resolution, pixel density, and device pixel ratio your device actually renders at — useful when CSS pixels and physical pixels disagree across phones and monitors.
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Browser Information
Read the precise browser name, version, engine, platform, and language — everything a bug report usually asks for, in one place.
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Viewport Information
Check the live viewport width, height, scroll position, and device pixel ratio of the window you are reading this in, including after rotation.
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Screen Resolution
Report screen resolution, color depth, and current orientation — with live updates on rotation for responsive-breakpoint testing.
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Safe Area Preview
Visualize how a notch or home indicator overlaps the viewport and read off the safe-area insets your CSS environment() variables should use.
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Camera Test
Open your webcam, preview the feed, and read off the resolutions and frame rates it supports — a five-second pre-call equipment check.
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Microphone Test
Check mic input level live, record a short test clip, and play it back so you can confirm the correct device and a usable signal.
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Speaker Test
Play a low, mid, and high test tone plus a voice sample to verify left/right channels and output volume on your current audio device.
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Clipboard Tester
Verify clipboard read and write access on this browser, triggering the permission prompt and confirming exactly what landed on the clipboard.
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Cookie Viewer
List every cookie set for this origin with its value, expiry, domain, and flags — a quick way to audit what a site drops on you.
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Browser Storage Inspector
Inspect localStorage, sessionStorage, and IndexedDB for the current origin, filter or delete keys, and debug storage-related bugs.
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PWA Manifest Viewer
Validate a manifest.json against the web app manifest spec — required fields, icon sizing, and display modes — before shipping a PWA.
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Browser Feature Detection
Detect support for dozens of browser APIs — WebGL, WebRTC, service workers, sensors, wake lock, and more — on this exact browser.
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Mobile & Browser — Free Online Browser Tools

Mobile & Browser tools reveal exactly what your device can do: screen resolution, viewport, safe areas, camera, microphone, speakers, clipboard, storage, and cookies, plus PWA manifest validation and feature detection. Get accurate diagnostics about your real hardware and browser, all computed locally on your own machine. Check that your camera, microphone, and speakers work before an important video call, see exactly which screen resolution and pixel ratio your device reports, and inspect the storage, cookies, and clipboard state of the current page. Developers can validate a PWA manifest, detect which browser APIs are supported, and preview safe-area insets for notched phones — all without any third-party tracking.

Why Use Mobile & Browser on UtilixVerse?

Unlike traditional online tools that require file uploads and server-side processing, every mobile & browser tool on UtilixVerse runs entirely in your browser. This means your data never leaves your device, results appear instantly without network delays, and most tools work fully offline once the page loads. No accounts, no signups, and no data collection — just fast, private utilities you can trust.

Free, Private, and Always Available

All 13 mobile & browser tools are completely free with no premium tiers, no accounts required, and no hidden limitations. Whether you are a developer debugging code, a student working on an assignment, or a designer crafting a layout — UtilixVerse has you covered.