Free browser hardware diagnostics
Test your devices instantly in the browser
Webcam, microphone, keyboard, and more — private, fast, and free. No downloads. No sign-up. Built for accurate results on every modern browser.
Browser-based device testing tools · No downloads · Privacy-first
Featured
Start with these essential tests
The most requested diagnostics — ready when you are.
Camera
Webcam Test
Check your camera feed, resolution, and permissions in the browser.
Audio
Microphone Test
Test microphone input levels and device selection.
Input
Keyboard Test
Verify every key press, including modifiers and special keys.
System
Browser Info
Inspect browser, engine, and feature support details.
Popular
Popular device tests
What people open most when something feels off.
Camera
Webcam Test
Check your camera feed, resolution, and permissions in the browser.
Audio
Microphone Test
Test microphone input levels and device selection.
Input
Keyboard Test
Verify every key press, including modifiers and special keys.
Audio
Speaker Test
Play channel and frequency checks for your speakers.
Categories
All tool categories
Jump straight to the hardware area you need to diagnose.
Camera
Webcam previews, permissions, and video diagnostics. 1 tool in this category.
Audio
Microphone, speaker, and headphone channel checks. 3 tools in this category.
Input
Keyboard, mouse, and pointer hardware tests. 2 tools in this category.
Display
Screen, color, and pixel-related utilities. 0 tools in this category.
System
Browser and device capability reports. 2 tools in this category.
Network
Connectivity and browser network diagnostics. 0 tools in this category.
New
Recently added tools
Fresh diagnostics joining the DeviceHub collection.
Input
Keyboard Test
Verify every key press, including modifiers and special keys.
Input
Mouse Test
Test mouse buttons, scroll wheel, and pointer tracking.
Audio
Headphone Test
Check left/right channels and stereo balance on headphones.
System
Device Info
View viewport, pixel ratio, and device capability signals.
Why DeviceHub
Built for speed, clarity, and trust
Everything about DeviceHub is optimized for organic search traffic and real-world device troubleshooting.
Instant in-browser tests
No downloads or plugins. Open a tool and get results in seconds.
Clear troubleshooting
Every tool pairs diagnostics with FAQs and common-fix paths.
Privacy by design
Device streams stay local in your browser whenever APIs allow.
Mobile-first accessibility
Keyboardable UI, semantic HTML, and WCAG-minded contrast.
Privacy promise
Your hardware data stays with you
DeviceHub is privacy-first. We do not sell personal device streams, and camera or microphone access is only used for the active test in your tab.
Compatibility
Supported browsers
Optimized for modern engines with graceful degradation elsewhere.
Chrome
Latest stable
Firefox
Latest stable
Safari
Latest stable
Edge
Latest stable
By the numbers
Diagnostics people rely on
Built for fast, private hardware checks in every modern browser.
8+
Hardware tools
Growing toolkit
0
Downloads required
100% browser-based
4
Major browsers
Chrome, Firefox, Safari, Edge
100%
Free core tests
No paywall to start
Help
Frequently asked questions
Quick answers before you start testing.
Do I need to download software to test my devices?
Is DeviceHub free to use?
Does DeviceHub upload my camera or microphone data?
Which browsers are supported?
Why is my webcam or microphone blocked?
Can I use DeviceHub on mobile?
Ready to test your devices?
Jump into a free diagnostic tool and get results in your browser.