Everything on TestMyLaptop in one place. Use the links below to find any tool or guide.
Diagnostic Tools
Display
- Free Dead Pixel Test — Find Dead & Stuck Pixels Online — Cycle solid colors to find dead, stuck, and hot pixels.
- Free Online Screen Test — Backlight Bleed & Uniformity — Uniformity, backlight bleed, color banding, and sharpness checks.
- Refresh Rate Test — Check Your Monitor Hz & FPS Online — Measure your display refresh rate and rendered frame rate.
- Motion Blur & Ghosting Test — Check Response Time Online — Check for motion blur, ghosting, and response-time artifacts.
- HDR & Color Depth Checker — Test Your Display Online — Check your display color depth, gamut, and HDR support.
Input
- Free Online Keyboard Tester — Find Dead & Ghosting Keys — See every key register in real time. Spot dead, sticky, or ghosting keys.
- Free Mouse & Trackpad Test — Clicks, Scroll & Drift — Check clicks, scroll, movement, and double-click misfires.
- Mouse Polling Rate & DPI Checker — Test Online Free — Measure your mouse polling rate estimated DPI sensitivity.
- Free Gamepad Tester — Check Buttons & Stick Drift Online — Test buttons and sticks; detect controller stick drift.
- Free Touch Screen Test — Check Multi-Touch & Response — Verify multi-touch points and screen responsiveness.
Media
- Free Online Webcam Test — Check Your Camera in Seconds — Live camera preview with resolution and frame-rate readout.
- Webcam Lag & Delay Test — Measure Camera Latency Online — Measure webcam latency with a live mirror and timer.
- Free Online Microphone Test — Check Your Mic Instantly — Live waveform and input-level meter for your mic.
- Free Speaker & Audio Test — Check Left/Right Channels — Left/right channel check and a frequency sweep.
- Fan Noise Meter — Measure Laptop Fan & System Noise — Mic-based relative fan and system noise measurement.
System
- Laptop Battery Status — Check Charge & Charging Online — Charge level and charging state (where your browser allows).
- Free Online CPU Benchmark — Test Processor Speed — Relative processing-speed score from in-browser math.
- Free GPU & WebGL Test — Check Your Graphics Online — Graphics renderer name and a rendering stress score.
- Device & Browser Specs — See Your System Info Online — Everything your browser can report about this device.
- Power Adapter Wattage Estimator — Check Charger Output — Estimate your charger wattage based on battery drain and system load.
Network
- Free Internet Speed Test — Download, Upload & Latency — Download, upload, and latency measurement.
- What Is My IP? — Free IP & Location Lookup Online — See your public IP, ISP, and estimated geographic location.
- Free DNS Leak Test — Check If Your VPN Is Leaking — Check if your DNS requests are leaking outside your VPN.
Featured
- Used Laptop Checklist — Guided pass/fail run-through of every test, with a PDF report.
Guides & Blog
- All Guides — blog index
- Buying a Secondhand MacBook? Here's Exactly What to Check First — A focused guide to testing a used MacBook — battery cycle count, keyboard reliability, USB-C ports, screen, and signs of liquid damage. Covers butterfly-era models specifically.
- Facebook Marketplace Laptop Scams: Red Flags to Test For in Person — How to protect yourself when buying a used laptop on Facebook Marketplace — red flags before testing, a 10-minute in-person test routine, and payment safety tips.
- How to Inspect a Used Gaming Laptop Before Buying — Check refresh rate, ghosting, battery health, keyboard ghosting, and ports on a used gaming laptop. A focused inspection guide for gaming-specific hardware.
- Refurbished Laptop vs Used Laptop: What to Verify Before Paying — What 'refurbished' actually means, when it's worth the premium, and what to check yourself regardless of the label — battery, screen, keyboard, and ports.
- The Complete Used Laptop Checklist: 15 Things to Test Before You Buy — A 15-point checklist for testing a used laptop before buying — battery, screen, keyboard, webcam, network, and more. Takes 10-15 minutes with free browser tools.
- Dead Pixels vs. Stuck Pixels: Differences, Causes, and Fixes — A bright speck on your screen could be a dead pixel or a stuck pixel. They look similar but one is often fixable.
- The Evolution of DDR Memory: From DDR to DDR5 — Each generation of DDR RAM doubled bandwidth and cut power. Here is how DDR5 and DDR4 compare technically, and what it means for your build.
- How to Fix Stick Drift Without Replacing Your Controller — Stick drift makes games unplayable — your character moves on their own. Here is how to confirm, calibrate, clean, and fix it, plus when to use warranty.
- How to Fix a Slow Laptop Boot Time — A laptop that took 15 seconds to boot when new but now takes two minutes hasn't necessarily aged badly. Here is a systematic walkthrough of the most common causes and fixes.
- FPS vs Hz: Why More Frames Don't Always Mean Smoother Gameplay — FPS comes from your graphics card. Hz comes from your monitor. They need to match for smooth motion. Here is how they interact and what to aim for.
- Keyboard Ghosting vs NKRO: What's the Difference and Why It Matters for Gaming — Anti-ghosting and N-Key Rollover are real features, but marketing blurs the difference. Here is what they do, how they work, and how to test your keyboard.
- MacBook vs. Windows PC in 2026 — Apple Silicon made MacBooks competitive on raw performance. Here is how both sides look now.
- How to Monitor Your Laptop or PC's CPU, GPU & FPS Stats — Keep real-time track of temperatures, usage, and frame rates with free built-in and browser tools.
- Mouse Polling Rate vs. DPI: What Actually Matters — High DPI is a marketing number. Polling rate affects how responsive your mouse feels. Here is the real difference.
- Why Is My PC Overheating? — Dust, dried thermal paste, and poor airflow cause most overheating. Here is how to diagnose and fix each one.
- Laptop Keyboard Not Working? 9 Fixes to Try First — A dead or glitchy laptop keyboard is usually fixable at home. Work through these nine checks, from quick resets to spotting a real hardware fault.
Other Pages
- Home — diagnostic checklist and tool index
- All Tools — all diagnostic tools grouped by category
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