Keyboard Tester
Test every key live, detect ghosting and stuck keys, and check N-key rollover - right in the browser.
Free Embeddable Widgets for Your Website
Add any of our 91 free testing tools — keyboard, mouse, screen, microphone, webcam and audio checks — to your own website, blog, or classroom page. Copy one line of code, paste it in, done. No signup, no API key, no limits.
- 100% free & unlimited
- No signup or API key
- Fully responsive
- Loads in one iframe
How to embed a widget in 3 steps
- Copy the codePick a tool below and click “Copy code” to grab its embed snippet.
- Paste it on your pageDrop the snippet into your page or blog post HTML wherever you want the tool to appear.
- Keep the credit linkThat’s it — the tool loads instantly. Just leave the small “by KeyboardTester.click” link in place.
Keyboard
Typing Speed Test
Measure WPM, accuracy, and typing consistency
Latency Checker
Test device and input latency in your browser
Spacebar Speed Test
Count how many spacebar presses you can make in 5, 10, or 30 seconds
Key Repeat Rate Tester
Measure your keyboard key repeat rate (Hz) and initial delay (ms) in your browser
Typing Rhythm Fingerprint
Visualize your inter-keystroke timing patterns and get a rhythm consistency score
Keyboard Switch Sound Analyzer
Classify your mechanical keyboard switches as linear, tactile, or clicky using mic FFT analysis
Keyboard Chatter Detector
Find keys that register twice from a single press with configurable threshold and per-key stats
Keyboard Polling Rate Test
Estimate keyboard Hz using browser auto-repeat timing measurement
Keyboard Shortcut Identifier
Press any key combination and instantly see what it does on Windows, macOS and Linux
Mouse
Mouse Tester
Check mouse buttons, scroll wheel, cursor movement, and responsiveness
Mouse Speed Tester
Measure your click speed (CPM or CPS) with timed tests
Mouse Sensitivity / DPI
Test DPI, sensitivity, and tracking accuracy
Mouse Trail
Visualize mouse movement trails and precision
Ghost Click Detector
Detect unintended or phantom clicks
Mouse Polling Rate Test
Check if your gaming mouse runs at 125Hz, 500Hz, 1000Hz or higher
Mouse LOD Tester
Measure your gaming mouse lift-off distance to optimize sensor performance
Mouse Accuracy Test
Aim trainer benchmark — measure hit percentage, average pixel error, and reaction time per target
Mouse Drag Click Test
Measure drag-click CPS, peak burst rate, and total clicks with live timeline graph
Right Click CPS Test
Measure right-mouse-button CPS with browser context menu suppressed
Mouse DPI Calculator
Measure true mouse DPI by dragging a known distance or entering pixel and inch values manually
eDPI Calculator
Calculate effective DPI (DPI x sensitivity) and cm/360 for CS2, Valorant, Apex and other FPS games
Mouse Drift Test
Detect idle cursor drift and sensor jitter with a 10s-3min pointer-event sampler and pass/fail verdict
Mouse Acceleration Test
Compare slow vs fast swipe pixels to catch Windows pointer acceleration or firmware-level sensor acceleration
Mouse Spin Test
Counts full 360° mouse rotations over 15/30/60 s with peak spins-per-second and direction indicator
Display
Screen Tester
Detect dead, stuck, or hot pixels on screens
Monitor Refresh Rate Test
Detect if your display runs at 60Hz, 144Hz, 240Hz or higher
Monitor Color Test
Check color accuracy, gradient banding and backlight uniformity
Backlight Bleed Test
Check your LCD monitor for backlight bleed, IPS glow, and clouding
Touch Screen Test
Test for dead zones, ghost touches and multi-touch on phone or tablet
PWM Flicker Test
Check if your monitor uses PWM backlight dimming that can cause eye strain
Monitor Gamma Test
Visual gamma calibration check using stripe-blend pattern, target sRGB 2.2
Monitor Ghosting Test
Detect pixel response time issues with adjustable-speed moving box on color backgrounds
Black Level Test
Check shadow detail with 32 near-black patches, detect crushed blacks
White Level Test
Check highlight detail with 32 near-white patches, detect clipped whites
Brightness Test
11-step grayscale ladder to verify brightness, contrast, and gamma calibration
Contrast Test
Checkerboard vs 50% gray squint test for contrast and gamma calibration
PPI Calculator
Compute pixels per inch, dot pitch, aspect ratio and megapixels for any display from resolution + diagonal
Aspect Ratio Calculator
Type any two of width, height, or ratio. Auto-simplifies to lowest integer terms and renders a live preview
Screen Size Calculator
Compute diagonal, width, height and visible area from aspect ratio plus any one dimension — in inches and cm
Viewing Distance Calculator
Optimal TV/monitor viewing distance by THX (36° FoV), SMPTE (30° FoV), and the 4K/8K resolving-limit
FPS Test
Live frame rate measurement with avg/min/max/1%-low plus 60/120/144/165/240Hz detection
Screen Resolution Test
Live readout of screen resolution, native pixels, device pixel ratio, color depth, and gamut
OLED Burn-In Test
Cycle 8 solid colors, fine checkerboard, and scrolling refresher fullscreen to detect OLED burn-in
Color Range Test
Detect Full RGB (0-255) vs Limited (16-235) via near-black and near-white patch grids
Screen Uniformity Test
Fullscreen gray/black/white/RGB at any brightness to spot clouding, IPS glow, and backlight bleed
Frame Skipping Test
Detects dropped or skipped frames at your refresh rate with rAF timestamp analysis and a visual reference bar
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
Camera
Webcam Tester
Check webcam quality, resolution, and snapshots
Webcam Mirror
Use your webcam as a real-time virtual mirror with horizontal flip, brightness/contrast, grid, and snapshot
Audio
Mic Tester
Verify microphone input and audio levels
Headphone / Speaker Tester
Test stereo channels and sound output
Decibel Meter
Live dB SPL measurement using your microphone with peak and rolling average
Sound Test
Speaker and headphone channel verifier plus 100 Hz → 10 kHz frequency sweep
Bass Test
Subwoofer and low-frequency sweep (20 Hz → 200 Hz) with ISO 1/3-octave bass presets
Frequency Response Test
Full-range 20 Hz → 20 kHz log sweep with hearing-limit logging and manual tone slider
Auditory Reaction Time Test
Measure how fast you respond to a sound cue in milliseconds using the Web Audio API
Surround Sound Test
5.1 and 7.1 channel walk-around to verify speaker wiring, with stereo panning fallback for headphones
Pitch Detector
Sing or play any note. Get live Hz, nearest note (C0-C8), octave, and cents off perfect pitch
Hearing Age Test
Mosquito tone hearing test - 12 frequencies from 8 kHz to 22 kHz to estimate your hearing age
Utility
OCR Tool
Extract text from images quickly
QR Code Reader
Scan QR codes with camera or image upload
QR Code Generator
Create custom QR codes instantly
Password Generator
Create strong, secure passwords instantly
WhatsApp Link Generator
Create clickable WhatsApp chat links
WhatsApp Brand Links
Create branded WhatsApp links and QR codes
WhatsApp Chat Analyzer
Deep AI tone report for chats and text
Lucky Wheel
Spin a random picker wheel for names, teams, prizes, and quick choices
WebRTC Leak Test
Detect IP address leaks through your browser even when using a VPN, IPv4 + IPv6 + local
Accelerometer Test
Live X/Y/Z acceleration readout in m/s² with tilt ball, shake counter, and peak-g tracking
Gyroscope Test
Live alpha/beta/gamma rotation readout with 3D cube, compass ring, and calibrate-to-zero
Vibration Test
Phone haptics patterns (Vibration API) and gamepad rumble per-motor intensity in one tool
CPU Stress Test
Multi-threaded WebWorker SHA-256 busy loop to load every logical core and report ops per second
AI GPU Test
Check WebGPU, WebGL2, WebNN and browser AI readiness with a safe matrix compute benchmark
GPU Stress Test
WebGL2 Mandelbrot fragment shader benchmark that pushes any GPU and reports FPS, minimum FPS, and software-rendering fallback
Memory Test
Browser heap monitor with live performance.memory readout, allocation stressor, and safe auto-abort
RAM Latency Calculator
Convert CAS latency (CL) and memory speed (MT/s) to real nanoseconds, compare DDR4 vs DDR5 kits side by side
Bandwidth Calculator
Solve for transfer time, file size, or required speed - handles bits vs bytes math automatically
Download Time Calculator
Estimate download duration for games, movies, and backups at your connection speed with realistic overhead
RAID Calculator
Usable capacity and fault tolerance for RAID 0/1/5/6/10/50/60 with side-by-side level comparison
Online Ruler
Actual-size cm and inch ruler on screen with credit-card calibration (ISO ID-1) and DPI presets
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
Gaming
Gamepad Tester
Test PS5, Xbox, Switch and PC controller buttons, stick drift and triggers
Reaction Time Test
Measure how fast you react with a browser-based millisecond reflex test
FoV Calculator
Convert field of view across aspect ratios and games with presets for CS2, Valorant, Apex, CoD and Fortnite
Crosshair Generator
Design a custom crosshair with live preview, PNG export, CS2 console command, and Valorant settings values
APM Test
Actions-per-minute counter for RTS & MOBA players — live APM, peak, and session average
Gamertag Generator
Random gamer names across 6 styles with length limits for Xbox, PSN, Steam, and Discord
Guild Name Generator
Random MMO guild and clan names across 6 themes and 5 templates, with WoW/FFXIV/Destiny length limits
TTK Calculator
Time-to-kill math for FPS games with body vs head comparison, armor handling, and CS2/Valorant/Apex/CoD presets
Minecraft Circle Generator
Pixel circle, filled disc, thick ring, and 3D sphere layer plotter for Minecraft builders, radius 1-256
Frequently asked questions
Are these widgets free to embed?
Yes. Every KeyboardTester.click widget is 100% free to embed on any website, blog, or learning platform. There is no signup, no API key, and no usage limit - just keep the small credit link included in the snippet.
How do I add a tool to my website?
Click "Copy code" on any widget below, then paste the snippet into your page or blog post HTML where you want the tool to appear. It loads in a responsive iframe and works instantly - no scripts to install.
Do the widgets work on mobile?
Yes. Each widget is fully responsive and scales to the width of its container, so it works correctly on phones, tablets, and desktops.
Can I remove the credit link?
Please keep the small "by KeyboardTester.click" credit link - it is the only thing we ask in exchange for free, unlimited embedding. An in-tool credit bar is included as the fallback.
