Free browser lab
Keyboard test & troubleshooting guides
Fix stuck keys, spills, and dead zones with step-by-step guides—then verify every key with our free online keyboard checker before you run a typing test.
Free tool
Walk every key on your keyboard in the browser
Match your OS layout, then press each physical key once—we highlight what registered so you spot stuck or missing switches fast.
Step 1
Match your layout
Pick ANSI, ISO, or your language pack before the key walk.
Step 2
Press every key once
Work row by row—modifiers and function keys included.
Step 3
Fix stuck or missing keys
Clear dead zones before blaming WPM dips on technique.
No download or sign-in. Works for wired, wireless, and laptop keyboards.
How to use the free online checker →
Keyboard Test · Getting started
Online Keyboard Test: Free Checker to Verify Every Key Before You Trust a Score
Run a free online keyboard test in your browser—press each key, watch it turn green, and confirm every switch registers before timed typing or troubleshooting.
Read guide
Keyboard Test · Troubleshooting
Keyboard Key Not Working? Tell Mechanical Failure From Software Before You Replace
Diagnose a dead or wrong key with the online keyboard checker—mechanical versus software faults, free OS checks, and when to repair switches versus reinstall drivers.
Read guide
Keyboard Test · Maintenance
How to Fix Sticky Keyboard Keys (Without Making It Worse)
Fix sticky keyboard keys safely: separate mechanical stickiness from OS Sticky Keys, clean caps in order, verify every key with the online checker
Read guide
Keyboard Test · Laptop
Laptop Keyboard Not Working: Fixes Before You Replace the Assembly
Fix built-in laptop keyboard failures with software checks, flex-cable and liquid diagnostics, external keyboard isolation, and full online checker verification.
Read guide
Keyboard Test · Liquid damage
Spilled Liquid on Keyboard: Emergency Steps for Laptop and Desktop
Power down fast after water, coffee, or soda on the keyboard—safe drying, when service beats DIY, and online key tests that prove recovery before you trust WPM scores.
Read guide
Keyboard Test · Troubleshooting
Stuck Key on Keyboard: Test Online, Then Decide on Repair
Diagnose stuck or repeating keys with the online keyboard checker, separate physical from electrical faults, and decide when cleaning beats replacement.
Read guide