Keyboard Guides & How-Tos
Practical, in-depth guides written by the KeyboardAnalyzer team - how to test your hardware, fix common problems, train your speed, and choose your next keyboard.
Most keyboard and mouse problems follow a familiar pattern: a key stops responding, a key types twice, several keys fail when pressed together, or a mouse button fires two clicks for one. These guides explain what causes each problem, how to confirm it with a free test in your browser, and what to try next, from free settings changes to cleaning, repairs and warranty claims.
Each guide is written to be followed step by step, starting with the cheapest and safest checks. Where a browser test cannot see something, such as the Fn key, firmware layers or true hardware latency, the guide says so plainly. The guides are grouped below by what you want to do, and every one links to the tool that goes with it.
Test your hardware
How to check every key, understand ghosting and rollover, make sense of latency numbers and test many keyboards at once.
How to Test Your Keyboard: A Complete Step-by-Step Guide
Learn to test every keyboard key in your browser, read key codes, spot dead or chattering keys, and decide if a keyboard needs cleaning or replacing.
Read guide →ExplainerKeyboard Ghosting Explained: Why Keys Vanish When You Press Many at Once
Why keyboards drop or invent keystrokes when you press several keys at once, what NKRO and anti-ghosting really mean, and how to test your own rollover.
Read guide →ExplainerKeyboard Latency: Where Input Lag Really Comes From
Where keyboard input lag comes from — switches, debounce, polling rate, wireless, and the OS — how much each stage costs, and what genuinely reduces it.
Read guide →Workflow GuideBatch Keyboard Testing: How to Check Dozens of Keyboards in One Afternoon
A fast workflow for IT admins, schools and refurbishers testing many keyboards: a 2-minute per-unit check, pass/clean/repair/scrap grades, and records.
Read guide →Fix common problems
Step-by-step fixes for dead keys, keys that type twice, mice that double-click and keyboards that need a proper clean.
How to Fix Unresponsive Keyboard Keys
A practical troubleshooting guide for dead or intermittent keyboard keys — from software checks and cleaning to switch replacement — fix the real cause.
Read guide →Care GuideKeyboard Cleaning and Maintenance: Make Your Board Last a Decade
How to clean a keyboard safely — quick weekly care, deep cleaning with keycap removal, spill response, and a schedule that makes it last a decade.
Read guide →TroubleshootingHow to Fix a Mouse That Double-Clicks
Why a mouse double-clicks on one press and how to fix it: confirm the fault, check settings, discharge static, clean it, raise debounce, swap the switch.
Read guide →TroubleshootingHow to Fix Keyboard Chatter: Keys That Type Twice
Keys typing twice from one press? Confirm chatter with a test, rule out settings, clean the switch, raise debounce in QMK or VIA, or replace the switch.
Read guide →Choose your next keyboard
What switch types feel like and which gaming keyboard specifications are worth paying for.
Mechanical Switch Guide: Linear, Tactile or Clicky?
How mechanical switches differ — force, travel, feedback, sound — which type suits typing, gaming, or the office, and how to choose the right one.
Read guide →Buying GuideGaming Keyboard Buying Guide: What Matters, What's Marketing
Which gaming keyboard specs actually matter — rollover, polling, switches, rapid trigger — which are marketing, and how to verify claims after buying.
Read guide →Type and click faster
Training methods for higher words per minute and clicks per second, with realistic targets.
How to Type Faster: From 40 to 100+ WPM
A practical plan to type faster — touch typing fundamentals, accuracy-first practice, measuring WPM, and breaking plateaus at 40, 60, and 100 WPM.
Read guide →Skill GuideHow to Click Faster: A Realistic Guide to Raising Your CPS
What CPS scores really mean, how jitter, butterfly, and drag clicking work, which techniques games allow, and how to click faster without hand strain.
Read guide →Every guide pairs with a free tool. You can also jump straight to a test:
All keyboard and mouse tests
Pick the test that matches the problem you're checking. Every tool runs in your browser, with no download and no sign-up.
Keyboard Tests
- Typing Speed Test
Measure your WPM and accuracy with timed typing tests.
- Ghosting / NKRO Test
Find key combinations your keyboard can't register at the same time.
- Performance & Latency Test
Check key response time, polling rate and input stability.
- Key Chatter Test
Find keys that type twice from a single press.
- Snap Tap / SOCD Test
See how your keyboard handles opposite keys pressed together.
- Spacebar Test
Count spacebar presses and check the space key responds every time.
Mouse Tests
- CPS Click Test
Measure clicks per second with 1 to 60 second timers.
- Double Click Test
Check every mouse button for unwanted double-clicks.
- Right Click Test
Test right-button speed and catch a failing right switch.
- Jitter Click Test
See how many clicks per second jitter clicking gives you.
- Butterfly Click Test
Two-finger butterfly clicking with CPS and rhythm stats.
- Kohi Click Test
The classic Minecraft PvP CPS test with a combat rating.
- Scroll Wheel Test
Check scroll speed and direction, and spot a skipping wheel.
- Mouse Polling Rate Test
Measure how many times per second your mouse reports.