AI-powered helper

Free AI Assistant for Keyboard, Mouse, Screen & Audio Tests

Describe your hardware problem in plain language and the AI assistant picks the right test, links you to it, and explains the result. Multilingual (8 languages), privacy-first (no account), and lives as a floating chat window on every page of KeyboardTester.click.

Browse all tools
8 languages No sign-up ~1s responses
KBT AI Assistant robot icon — free hardware test chatbot

AI-powered helper

KBT AI Assistant

Ask in plain English (or Spanish, French, German, Japanese, Korean, Portuguese, Arabic) which hardware test fits your problem — the AI walks you through it and explains the result.

How it works
Emily online

Emily

Emily helps users find the right keyboard, mouse, screen, audio, or utility test and understand what to do next.

Animated AI assistant greeting preview Ava online

Ava

Ava gives visitors another friendly way to start getting help with device checks and troubleshooting.

🧠
Knows every tool
Guides you to the right test from 37+ tools on the site.
🌐
9 languages
English, Spanish, French, German, Japanese, Korean, Portuguese, Arabic.
🔒
Privacy-first
No account. No chat history stored on our servers beyond the active session.
Fast
Groq-hosted model — answers in ~1 second on a good connection.

Try asking:

  • "My arrow keys sometimes don't register — which test should I run?"
  • "How do I check if my headphones play true stereo?"
  • "Is there a dead pixel on my monitor?"
  • "What's a good click-per-second for a gaming mouse?"
  • "Show me how to measure input latency."

The assistant points you at the exact tool, links you to it, and explains what the result means once you're done.

Free & unlimited
No account, no credit card, no daily cap
Rate-limited
12 messages per minute, spam-safe
Open source site
Browser-based tools, MIT licence
No chat log
Conversation clears on reload

More testing tools

Explore the full suite for keyboard, mouse, audio, and utilities.

Language support: All major tools are available in 9 languages - English plus Arabic, Russian, Spanish, French, Portuguese, Japanese, German, and Korean. Select your language from the header menu to switch.

Keyboard
Keyboard Tester

Test keyboard functionality, detect ghosting, measure latency, check for stuck keys

Test your keyboard 5.0 (4)
Keyboard
Arabic Keyboard Tester

Test Arabic keyboard layout and key response in an Arabic-first interface

Test Arabic layout Rate
Keyboard
Typing Speed Test

Measure WPM, accuracy, and typing consistency

Check typing speed 5.0 (1)
Keyboard
Latency Checker

Test device and input latency in your browser

Measure latency 5.0 (1)
Keyboard
Spacebar Speed Test

Count how many spacebar presses you can make in 5, 10, or 30 seconds

Test your spacebar 5.0 (1)
Keyboard
Key Repeat Rate Tester

Measure your keyboard key repeat rate (Hz) and initial delay (ms) in your browser

Test repeat rate 5.0 (1)
Keyboard
Typing Rhythm Fingerprint

Visualize your inter-keystroke timing patterns and get a rhythm consistency score

Analyze rhythm 5.0 (1)
Keyboard
Keyboard Switch Sound Analyzer

Classify your mechanical keyboard switches as linear, tactile, or clicky using mic FFT analysis

Analyze sound 5.0 (1)
Keyboard
Keyboard Chatter Detector

Find keys that register twice from a single press with configurable threshold and per-key stats

Detect chatter 5.0 (1)
Keyboard
Keyboard Polling Rate Test

Estimate keyboard Hz using browser auto-repeat timing measurement

Test polling rate 5.0 (1)
Keyboard
Keyboard Shortcut Identifier

Press any key combination and instantly see what it does on Windows, macOS and Linux

Try a shortcut 5.0 (1)
Mouse
Mouse Tester

Check mouse buttons, scroll wheel, cursor movement, and responsiveness

Test your mouse 5.0 (1)
Mouse
Mouse Speed Tester

Measure your click speed (CPM or CPS) with timed tests

Check click speed 4.0 (4)
Mouse
Mouse Sensitivity / DPI

Test DPI, sensitivity, and tracking accuracy

Test DPI settings 5.0 (1)
Mouse
Mouse Trail

Visualize mouse movement trails and precision

View mouse trails 5.0 (1)
Mouse
Ghost Click Detector

Detect unintended or phantom clicks

Detect ghost clicks 5.0 (1)
Mouse
Mouse Polling Rate Test

Check if your gaming mouse runs at 125Hz, 500Hz, 1000Hz or higher

Test polling rate 5.0 (1)
Mouse
Mouse LOD Tester

Measure your gaming mouse lift-off distance to optimize sensor performance

Test LOD 5.0 (1)
Mouse
Mouse Accuracy Test

Aim trainer benchmark — measure hit percentage, average pixel error, and reaction time per target

Test your aim 5.0 (2)
Mouse
Mouse Drag Click Test

Measure drag-click CPS, peak burst rate, and total clicks with live timeline graph

Test drag clicks 5.0 (1)
Mouse
Right Click CPS Test

Measure right-mouse-button CPS with browser context menu suppressed

Test right CPS 5.0 (1)
Mouse
Mouse DPI Calculator

Measure true mouse DPI by dragging a known distance or entering pixel and inch values manually

Measure DPI 5.0 (1)
Mouse
eDPI Calculator

Calculate effective DPI (DPI x sensitivity) and cm/360 for CS2, Valorant, Apex and other FPS games

Calculate eDPI 5.0 (1)
Mouse
Mouse Drift Test

Detect idle cursor drift and sensor jitter with a 10s-3min pointer-event sampler and pass/fail verdict

Test drift 5.0 (1)
Mouse
Mouse Acceleration Test

Compare slow vs fast swipe pixels to catch Windows pointer acceleration or firmware-level sensor acceleration

Test acceleration 5.0 (1)
Mouse
Mouse Spin Test

Counts full 360° mouse rotations over 15/30/60 s with peak spins-per-second and direction indicator

Start spinning 5.0 (1)
Display
Screen Tester

Detect dead, stuck, or hot pixels on screens

Test your screen Rate
Display
Monitor Refresh Rate Test

Detect if your display runs at 60Hz, 144Hz, 240Hz or higher

Test refresh rate 5.0 (1)
Display
Monitor Color Test

Check color accuracy, gradient banding and backlight uniformity

Test colors 5.0 (1)
Display
Backlight Bleed Test

Check your LCD monitor for backlight bleed, IPS glow, and clouding

Test for bleed Rate
Display
Touch Screen Test

Test for dead zones, ghost touches and multi-touch on phone or tablet

Test touch screen Rate
Display
PWM Flicker Test

Check if your monitor uses PWM backlight dimming that can cause eye strain

Test for flicker 5.0 (1)
Display
Monitor Gamma Test

Visual gamma calibration check using stripe-blend pattern, target sRGB 2.2

Test gamma Rate
Display
Monitor Ghosting Test

Detect pixel response time issues with adjustable-speed moving box on color backgrounds

Test ghosting Rate
Display
Black Level Test

Check shadow detail with 32 near-black patches, detect crushed blacks

Test black level 4.5 (2)
Display
White Level Test

Check highlight detail with 32 near-white patches, detect clipped whites

Test white level Rate
Display
Brightness Test

11-step grayscale ladder to verify brightness, contrast, and gamma calibration

Test brightness Rate
Display
Contrast Test

Checkerboard vs 50% gray squint test for contrast and gamma calibration

Test contrast 5.0 (2)
Display
PPI Calculator

Compute pixels per inch, dot pitch, aspect ratio and megapixels for any display from resolution + diagonal

Calculate PPI 5.0 (1)
Display
Aspect Ratio Calculator

Type any two of width, height, or ratio. Auto-simplifies to lowest integer terms and renders a live preview

Open calculator 5.0 (1)
Display
Screen Size Calculator

Compute diagonal, width, height and visible area from aspect ratio plus any one dimension — in inches and cm

Calculate size Rate
Display
Viewing Distance Calculator

Optimal TV/monitor viewing distance by THX (36° FoV), SMPTE (30° FoV), and the 4K/8K resolving-limit

Find distance Rate
Display
FPS Test

Live frame rate measurement with avg/min/max/1%-low plus 60/120/144/165/240Hz detection

Start FPS test Rate
Display
Screen Resolution Test

Live readout of screen resolution, native pixels, device pixel ratio, color depth, and gamut

See resolution Rate
Display
OLED Burn-In Test

Cycle 8 solid colors, fine checkerboard, and scrolling refresher fullscreen to detect OLED burn-in

Test burn-in Rate
Display
Color Range Test

Detect Full RGB (0-255) vs Limited (16-235) via near-black and near-white patch grids

Test RGB range 5.0 (1)
Display
Screen Uniformity Test

Fullscreen gray/black/white/RGB at any brightness to spot clouding, IPS glow, and backlight bleed

Test uniformity Rate
Display
Frame Skipping Test

Detects dropped or skipped frames at your refresh rate with rAF timestamp analysis and a visual reference bar

Detect skipped frames Rate
Display
Monitor Sharpness Test

Lagom-style 1px pixel grid, multi-size text samples, color-fringing blocks, and an RGB sub-pixel ruler to evaluate display sharpness

Test sharpness Rate
Camera
Webcam Tester

Check webcam quality, resolution, and snapshots

Test your webcam 5.0 (1)
Camera
Webcam Mirror

Use your webcam as a real-time virtual mirror with horizontal flip, brightness/contrast, grid, and snapshot

Open mirror Rate
Audio
Mic Tester

Verify microphone input and audio levels

Test your microphone Rate
Audio
Headphone / Speaker Tester

Test stereo channels and sound output

Test audio output Rate
Audio
Decibel Meter

Live dB SPL measurement using your microphone with peak and rolling average

Open meter 1.0 (1)
Audio
Sound Test

Speaker and headphone channel verifier plus 100 Hz → 10 kHz frequency sweep

Test sound 5.0 (1)
Audio
Bass Test

Subwoofer and low-frequency sweep (20 Hz → 200 Hz) with ISO 1/3-octave bass presets

Test bass Rate
Audio
Frequency Response Test

Full-range 20 Hz → 20 kHz log sweep with hearing-limit logging and manual tone slider

Start hearing test Rate
Audio
Auditory Reaction Time Test

Measure how fast you respond to a sound cue in milliseconds using the Web Audio API

Start sound test Rate
Audio
Surround Sound Test

5.1 and 7.1 channel walk-around to verify speaker wiring, with stereo panning fallback for headphones

Test surround Rate
Audio
Pitch Detector

Sing or play any note. Get live Hz, nearest note (C0-C8), octave, and cents off perfect pitch

Open pitch detector Rate
Audio
Hearing Age Test

Mosquito tone hearing test - 12 frequencies from 8 kHz to 22 kHz to estimate your hearing age

Test hearing age Rate
Utility
OCR Tool

Extract text from images quickly

Extract text now 5.0 (1)
Utility
QR Code Reader

Scan QR codes with camera or image upload

Scan QR codes Rate
Utility
QR Code Generator

Create custom QR codes instantly

Create QR code Rate
Utility
Password Generator

Create strong, secure passwords instantly

Generate password Rate
Utility
WhatsApp Link Generator

Create clickable WhatsApp chat links

Generate chat link Rate
Utility
WhatsApp Brand Links

Create branded WhatsApp links and QR codes

Create brand link Rate
Utility
WhatsApp Chat Analyzer

Deep AI tone report for chats and text

Analyze chat tone Rate
Utility
Lucky Wheel

Spin a random picker wheel for names, teams, prizes, and quick choices

Spin the wheel Rate
Utility
All Tools

Browse all hardware testing tools in one place

View all tools Rate
Utility
WebRTC Leak Test

Detect IP address leaks through your browser even when using a VPN, IPv4 + IPv6 + local

Check IP leak Rate
Utility
Accelerometer Test

Live X/Y/Z acceleration readout in m/s² with tilt ball, shake counter, and peak-g tracking

Test motion sensor 2.0 (1)
Utility
Gyroscope Test

Live alpha/beta/gamma rotation readout with 3D cube, compass ring, and calibrate-to-zero

Test rotation sensor 5.0 (1)
Utility
Vibration Test

Phone haptics patterns (Vibration API) and gamepad rumble per-motor intensity in one tool

Test vibration Rate
Utility
CPU Stress Test

Multi-threaded WebWorker SHA-256 busy loop to load every logical core and report ops per second

Stress the CPU Rate
Utility
AI GPU Test

Check WebGPU, WebGL2, WebNN and browser AI readiness with a safe matrix compute benchmark

Test AI GPU readiness Rate
Utility
GPU Stress Test

WebGL2 Mandelbrot fragment shader benchmark that pushes any GPU and reports FPS, minimum FPS, and software-rendering fallback

Stress the GPU Rate
Utility
Memory Test

Browser heap monitor with live performance.memory readout, allocation stressor, and safe auto-abort

Open memory test Rate
Utility
RAM Latency Calculator

Convert CAS latency (CL) and memory speed (MT/s) to real nanoseconds, compare DDR4 vs DDR5 kits side by side

Calculate RAM latency Rate
Utility
Bandwidth Calculator

Solve for transfer time, file size, or required speed - handles bits vs bytes math automatically

Open bandwidth calc Rate
Utility
Download Time Calculator

Estimate download duration for games, movies, and backups at your connection speed with realistic overhead

Estimate download time Rate
Utility
RAID Calculator

Usable capacity and fault tolerance for RAID 0/1/5/6/10/50/60 with side-by-side level comparison

Calculate RAID 5.0 (1)
Utility
Online Ruler

Actual-size cm and inch ruler on screen with credit-card calibration (ISO ID-1) and DPI presets

Open ruler Rate
Utility
AI Assistant

Chat with the site's AI helper — it picks the right hardware test, links you to it, and explains the result in 9 languages

Open AI chat 5.0 (1)
Gaming
Gamepad Tester

Test PS5, Xbox, Switch and PC controller buttons, stick drift and triggers

Test controller 5.0 (1)
Gaming
Reaction Time Test

Measure how fast you react with a browser-based millisecond reflex test

Test reaction time 5.0 (1)
Gaming
FoV Calculator

Convert field of view across aspect ratios and games with presets for CS2, Valorant, Apex, CoD and Fortnite

Convert FoV Rate
Gaming
Crosshair Generator

Design a custom crosshair with live preview, PNG export, CS2 console command, and Valorant settings values

Open generator Rate
Gaming
APM Test

Actions-per-minute counter for RTS & MOBA players — live APM, peak, and session average

Measure APM Rate
Gaming
Gamertag Generator

Random gamer names across 6 styles with length limits for Xbox, PSN, Steam, and Discord

Generate names Rate
Gaming
Guild Name Generator

Random MMO guild and clan names across 6 themes and 5 templates, with WoW/FFXIV/Destiny length limits

Generate guild names Rate
Gaming
TTK Calculator

Time-to-kill math for FPS games with body vs head comparison, armor handling, and CS2/Valorant/Apex/CoD presets

Calculate TTK Rate
Gaming
Minecraft Circle Generator

Pixel circle, filled disc, thick ring, and 3D sphere layer plotter for Minecraft builders, radius 1-256

Plot a circle Rate

What The KBT AI Assistant Does

The assistant is a free chat-based helper that knows every tool on KeyboardTester.click and can walk you through any hardware diagnostic in plain language. Instead of browsing a menu of 37+ tools, you describe what's wrong — a sticky space bar, a dead pixel on your monitor, one earbud that sounds muffled, a mouse that sometimes double-clicks — and the assistant points you to the exact test, explains how to run it, and interprets the result once you come back with numbers. It runs on a fast Groq-hosted language model and responds in roughly a second. No sign-up, no credit card, no install.

Why An AI Helper For Hardware Tests?

Hardware diagnostics are full of jargon that only makes sense if you already know what you're looking for. Terms like "N-key rollover", "input latency", "polling rate", "PPI", "ghosting", "dead vs. stuck pixel", "1% low frame time" all matter when you're picking the right test, but they're barriers when you just want to know whether your keyboard is broken. The assistant translates between everyday language ("keys feel weird", "screen looks funny in one corner") and the specific test that will answer your question. It also knows when a combination of tests is needed — for example, a "my mouse is inaccurate" complaint often resolves into the DPI tester plus the mouse-acceleration test plus the polling-rate test.

Multilingual: 8 Languages Supported

Ask in English, Spanish, French, German, Japanese, Korean, Portuguese, or Arabic. The AI detects your chosen language from the 🌐 button and replies in the same language, with localized tool URLs that route you to the translated version of the site where available. The prompt engineering includes inline localization rules so the links in the AI's responses always go to the right language directory (e.g. /languages/spanish/) when a localized version of the tool exists.

Privacy And What Happens To Your Messages

Conversations are stored only in your browser's localStorage — clearing the page or opening an incognito window wipes them. Messages are sent to Groq's LLM API to generate the reply, and neither the site nor Groq use that data to train future models (per Groq's API terms of service). The site does not log chat content server-side beyond a 12-message-per-minute rate-limit counter tied to your session, which exists only to prevent abuse and resets every minute. No account, no email, no identifier is required to chat.

When To Use The AI Assistant vs. The Tools Directly

If you already know which test you need — for example, you're here because a friend said "run the dead-pixel test" — just click through the sidebar or tool index. The assistant adds value when (a) you're not sure which tool fits your symptom, (b) you want a human-style explanation of a result, (c) you want to compare two tools ("what's the difference between mouse-test and ghost-click-detector?"), or (d) English is not your first language and you want to chat in your own. For every other case, the tools themselves are self-explanatory and one click faster.

Limits Of The AI Assistant

The assistant is scoped to hardware testing on this site. It will politely decline questions about politics, homework, coding help, travel, or anything else off-topic — if you want a general AI chatbot, ChatGPT and Claude are better choices. It can be wrong about edge cases, especially on niche hardware (uncommon gaming controllers, professional audio interfaces), so treat its recommendations as a starting point rather than a verdict. Rate limit is 12 messages per minute to keep the service free; heavy users should spread out their questions. The model behind it is a mid-sized LLM, not GPT-4 or Claude Opus — fast and cheap enough to keep free, but not state-of-the-art reasoning.

AI Assistant Guide

How to get the most out of the built-in AI chat.

Step 1: open the chat

  1. The robot icon at the bottom-right of every page is the AI assistant launcher.
  2. Click it (or tap on mobile) — the window slides open.
  3. Optionally tell the AI your name, or hit Skip.

Step 2: describe the problem

  1. Use plain language: "my space bar feels sticky", "one earbud is quiet", "screen has a black dot".
  2. The AI maps your wording to the right test tool on the site and drops the direct link.
  3. Don't worry about technical terms — the assistant handles both beginner and advanced phrasing.

Step 3: follow up

  1. After running a test, paste what you saw: "the cat got to 60 keys then I missed F11" or "DPI shows 810 instead of 800".
  2. The assistant interprets the result and suggests next steps (another test, a fix, or a buy recommendation).
  3. Switch languages at any time via the 🌐 button in the chat header.

Privacy & limits

  • The chat log is stored only in your browser — reload the page and it clears.
  • Messages go to a Groq-hosted LLM API for generation; we don't train on them.
  • Rate limit: 12 messages per minute per visitor, to keep it free and fast for everyone.
  • The AI only answers questions about hardware tests on this site — it won't help with homework, politics, or code.

Windows app

KeyboardTester.click is available from Microsoft Store

Install the official Windows app shortcut, or keep using the same free testing tools in your browser.

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