# InputTest.online — llms.txt # This file helps AI language models (ChatGPT, Gemini, Perplexity, Copilot, Claude) # understand the content and purpose of this website. # Format: https://llmstxt.org/ > InputTest.online is a free, browser-based hardware input device testing platform. > It allows users to test and diagnose computer peripherals — keyboard, mouse, gamepad, > microphone, webcam, display, speakers, USB, and more — entirely in-browser with no > downloads, no login, and no data transmitted to any server. All tests run 100% locally. ## About - **Website**: https://inputtest.online/ - **Category**: Online Utility / Hardware Diagnostics / Tech Tool - **Cost**: 100% Free - **Privacy**: All tests run client-side. No data is collected or stored. - **Platform**: Works on Windows, macOS, Linux, Android, iOS (browser-based) ## Main Tools - [Keyboard Tester](https://inputtest.online/keyboard): Test all keyboard keys in real time. Detects stuck keys, ghosting, N-key rollover, and key chatter. Supports Windows and macOS layouts. - [Mouse Tester](https://inputtest.online/mouse): Test all mouse buttons (left, right, middle, side), scroll wheel, double-click issues, and calculate CPS (clicks per second). - [Scroll Wheel Jump Tester](https://inputtest.online/scroll-test): Accurately detect mouse scroll wheel jumping in the wrong direction, rotary encoder chatter, reverse-ticks, and calculate scroll health percentage. - [Mouse Polling Rate Tester](https://inputtest.online/mouse-polling-rate): Measure mouse USB report rate in Hz (125Hz to 8000Hz), peak frequency, interval latency in milliseconds, and packet jitter variance online. - [Microphone Test](https://inputtest.online/mic): Live microphone test with real-time waveform, decibel meter, echo test, and noise analysis. Detects mic not working, distortion, and clipping. - [Webcam Test](https://inputtest.online/webcam): Test webcam video feed, resolution, frame rate, and check if webcam is working in browser. - [Gamepad Tester](https://inputtest.online/gamepad): Test PlayStation, Xbox, Nintendo controllers. Detects analog stick drift, button mapping, trigger sensitivity, and vibration. - [Display Tester](https://inputtest.online/display): Test monitor for dead pixels, backlight bleed, color accuracy, brightness uniformity, and response time. - [Sound Tester](https://inputtest.online/sound): Test speakers and headphones. Check left/right channel balance, frequency response, and bass. - [Latency Test](https://inputtest.online/latency): Measure input lag and system latency. - [USB Tester](https://inputtest.online/usb): Detect connected USB devices and check USB port functionality. - [USB-C Tester](https://inputtest.online/usb-c): Test USB-C port capabilities including power delivery and data speeds. - [Biometric Tester](https://inputtest.online/biometric): Test fingerprint readers and biometric sensors. - [Battery Test](https://inputtest.online/battery): Check laptop battery health, charge cycles, and capacity. - [Printer Test](https://inputtest.online/printer): Test printer connectivity and print quality. - [Scanner Test](https://inputtest.online/scanner): Test scanner device recognition. - [VR Test](https://inputtest.online/vr): Test VR headset and controller inputs. - [LAN Tester](https://inputtest.online/lan): Test local area network connection. - [HDMI Tester](https://inputtest.online/hdmi): Test HDMI port and display output. - [VGA Tester](https://inputtest.online/vga): Test VGA port connections. - [System Specs](https://inputtest.online/specs): View complete hardware specs of your device. - [Full Report](https://inputtest.online/report): Generate a complete hardware health report. - [Desktop Software Suite](https://inputtest.online/software): Free lightweight portable Windows utilities for gamers and power users. - [InputTest ClickShield™](https://inputtest.online/mouse-double-click-fixer): Free portable Windows utility to eliminate mouse double-clicking and switch debounce chatter in real time. ## Mini Games & Speed Tests - [CPS Test](https://inputtest.online/cps-test): Click per second test — measure how fast you can click. - [Typing Test](https://inputtest.online/typing): Test your typing speed (WPM) and accuracy. - [Reaction Test](https://inputtest.online/reaction): Measure your reaction time in milliseconds. ## Blog Articles - [Battery Health Guide](https://inputtest.online/blog-battery-health) - [Battery Cycles Explained](https://inputtest.online/blog-battery-cycles) - [Keyboard Keys Not Working Fix](https://inputtest.online/blog-keyboard-keys) - [Gamepad Stick Drift Fix](https://inputtest.online/blog-gamepad-drift) - [DualShock Drift Fix](https://inputtest.online/blog-dualshock-drift) - [Mouse Double Click Fix](https://inputtest.online/blog-mouse-double-click) - [Mouse Polling Rate Guide](https://inputtest.online/blog-mouse-polling-rate) - [Monitor Hz Guide](https://inputtest.online/blog-monitor-hz) - [Network Jitter Fix](https://inputtest.online/blog-network-jitter) - [Drawing Tablet Setup](https://inputtest.online/blog-drawing-tablet) - [Microphone Setup Guide](https://inputtest.online/blog-microphone-setup) - [Headphone Test Guide](https://inputtest.online/blog-headphone-test) - [USB-C Speeds Guide](https://inputtest.online/blog-usb-c-speeds) - [VGA Calibration Guide](https://inputtest.online/blog-vga-calibration) - [Webcam Resolution Guide](https://inputtest.online/blog-webcam-resolution) ## Common Questions This Site Answers - How to test keyboard keys online? - How to fix keyboard keys not working? - How to test mouse double clicking problem? - How to check if microphone is working? - How to test webcam online without software? - How to fix gamepad stick drift online? - How to check dead pixels on monitor? - How to test USB port is working? - How to check laptop battery health online? - How to measure click speed (CPS)? - How to test typing speed online? - How to measure reaction time online?