Collection Guide

Professional device detection tools including screen test, gamepad tester, keyboard and mouse test and more, helping you detect and diagnose device issues

Who is this collection for?

  • Use this page when you want to compare several related tools in one place.
  • It helps you move between closely related tasks without searching again.
  • This collection currently includes 8 practical tools.

What can you find here?

  • Common entry points include Screen Test, Gamepad Tester, Webcam Test, Microphone Test, Keyboard & Mouse Test, and 3 more tools.
  • You can quickly switch between checking, conversion, generation, formatting, or supporting workflows.

Recommended entry points

  • Screen Test - Professional online screen test tool with 39 test modes for dead pixels, backlight bleed, color banding, response time and more
  • Gamepad Tester - Online gamepad testing tool for buttons, sticks, triggers and vibration, with circularity test and drift detection
  • Webcam Test - Free online webcam test tool to check if your camera is working properly. Analyze resolution, frame rate (FPS), test microphone. 100% local processing, privacy protected. Supports snapshot, fullscreen and multi-camera switching.
  • Microphone Test - Free online microphone test tool with real-time audio visualization, volume level meter, and recording playback. Check if your microphone is working properly, test audio quality, and troubleshoot input issues. 100% local processing, no upload required.
  • Keyboard & Mouse Test - Free online keyboard and mouse test tool with real-time key detection, mouse buttons, scroll wheel and coordinates. Supports key ghosting test (NKRO), double-click detection, event log export. 100% local processing, ideal for developers and device testing.
  • USB Device Viewer - WebHID API-based online USB device viewer to check VID, PID, report descriptors of HID devices. Supports keyboards, mice, gamepads and more. No software installation required, 100% local processing for privacy protection.
  • FPS Test - Online FPS test tool with real-time frame rate monitoring, stability analysis, and device performance rating for web animation debugging, game smoothness checks, and device diagnostics.
  • Keyboard Key Detector - Online keyboard key detector for real-time KeyCode, key, code, location, and modifier checks during shortcut debugging and key mapping review

How to use this page

  1. Read the short introduction and identify the tool closest to your current goal.
  2. Open the selected tool and process your data directly in the browser.
  3. Return to this collection when the workflow needs another related tool.

FAQ

Do I need to use every tool in this collection?

No. Pick the tool that matches your current task.

Why are these tools grouped together?

Because they are often used in the same workflow or solve closely related problems.