🖥️
Please open on PC or Laptop
KeyMouse Tester Pro requires a full keyboard and mouse to use.
Please access this tool from a desktop PC or laptop for the best experience.
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elcomputer.net
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KeyMouse Tester 2.7
Size
Layout
OS
0%
Keyboard
Mouse
Wireless
Gaming
Maintenance
Audio
Visual
Help
System
v2.7 — elcomputer.net
Key TesterPRESS ANY KEY
🛡️
Win Key Protection
All keys captured: Win Alt+F4 Alt+Tab Ctrl+W. Click the keyboard area below. ● Not active
Tested
0
Total
0
Remaining
0
Last Key
Code
Hold
Coverage0%
Click keyboard to activate
Pressed
Tested
Untested
KB Polling RateHOLD ANY KEY
Each keydown repeat fires once per USB report. Hold 2+ sec. Keyboards max 1000 Hz.
Measured Rate
Hz
Hold any key...
Hz
Avg ms
Min ms
Jitter
ms
Samples
0
Peak
Reference
125 Hz8.000 msBasic USB
250 Hz4.000 msStandard gaming
500 Hz2.000 msHigh performance
1000 Hz1.000 msPro gaming (max for keyboards)

8K polling is mouse-only. Keyboards max at 1000 Hz.

Mouse TesterCLICK INSIDE PAD
🖱️
Back/Forward not working? Download X-Mouse Button Control
Maps XButton1/XButton2 side buttons to browser. Free · Windows.
⬇ Download v2.20.5
Buttons — click inside tracking pad to test all 5
Middle = Scroll wheel press  •  Back = XButton1 (rear side)  •  Forward = XButton2 (front side)
Movement Tracking
x: — y: —
Scroll
0
total
↑ Up
0
↓ Down
0
Stats
Distance0 px
Peak Speed0 px/s
Position
Clicks0
Double Clicks0
Mouse Polling RateMOVE CONTINUOUSLY
Uses pointermove + getCoalescedEvents(). Move steadily 2+ sec.
4K/8K needs COOP+COEP headers. Without them browser caps timer ~1ms → shows ~1000Hz on 8K mice.
Live Rate
Hz
Move mouse...
Hz
Avg ms
Min ms
Jitter
ms
Samples
0
Peak
Rate Bands
Reference
125 Hz8.000 msBudget
250 Hz4.000 msStandard gaming
500 Hz2.000 msMid gaming
1000 Hz1.000 msPro 1K
2000 Hz0.500 msHigh-end 2K
4000 Hz0.250 msRazer/Logitech 4K
8000 Hz0.125 msRazer 8K / SteelSeries 8K
Wireless TestKB & MOUSE
Keyboard Wireless
EST. LATENCY
ms
Avg
ms
Jitter
Events
0
Mouse Wireless
Move mouse...
Avg
Jitter
Drops
0
Connection Types
2.4GHz RF~1ms — best wireless, near-wired
BT 5.x~2–8ms — good for productivity
BT 3.0~10–20ms — not ideal for gaming
USB Wired<1ms — reference baseline
Game SpecsRECOMMENDED PERIPHERALS
Work SpecsPROFESSIONALS
Gaming TweaksWINDOWS PERFORMANCE
⚠️ All tweaks marked Safe are reversible and standard optimizations. Registry tweaks are labeled. Create a restore point first: rstrui.exe
SoftwareDRIVERS & TOOLS
Cleaning Guide
1
Unplug keyboard
Disconnect from PC first. For wireless: turn off power switch.
2
Shake & compressed air
Hold upside down and shake gently. Use compressed air at 45° between keys to dislodge crumbs and dust. Never tilt the can.
3
Remove & wash keycaps
Use a keycap puller. Soak in warm soapy water 20–30 min. Rinse well. Air dry completely (24h) before reinstalling.
4
Clean switch plate
Lint-free cloth lightly dampened with 70% IPA. Wipe between switches. Cotton swabs for tight spots. Never spray liquid directly on the board.
5
Dry completely
Allow 1–2 hours before plugging back in.
⚠️ Never use bleach or acetone. Avoid moisture near USB port. 70% IPA is safe for most surfaces.
1
Unplug / power off
Disconnect or switch off before cleaning.
2
Wipe exterior
Microfiber cloth with 70% IPA. Wipe all surfaces. Soft toothbrush for textured grips.
3
Clean sensor
Dry cotton swab on optical sensor. Never use liquid on sensor. Removes buildup causing cursor stutter.
4
Clean mouse feet
Wipe with IPA on cotton swab. If worn, replace PTFE feet sets (affordable, widely available).
5
Scroll wheel
Compressed air around wheel. Toothpick or dry brush removes debris from encoder gap for sticky scroll.
⚠️ Never submerge. Keep liquid away from sensor and scroll encoder.
1
Cloth pads
Rinse under cold water, hand wash with mild soap. Scrub gently with soft brush. Rinse thoroughly.
2
Dry properly
Pat with towel — don't wring. Lay flat to air dry 4–8 hours. No dryer or iron.
3
Hard / plastic pads
Damp cloth with mild detergent. Dry immediately. Avoid abrasives.
4
RGB pads
Unplug first. Barely damp cloth on surface. Keep water away from USB and LED strip edges.
⚠️ Wash cloth pads every 2–4 weeks. Oils degrade optical sensor accuracy.
1
Turn off & cool down
Turn off monitor. Dark screen makes dust visible. Unplug power for safety.
2
Dry microfiber first
Gentle circular motions to remove dust. No paper towels or tissues — they scratch coatings.
3
Stubborn smudges
Lightly dampen cloth with distilled water only. Or use dedicated LCD cleaner. Never spray directly.
4
Dry & power on
Second dry cloth to remove streaks. Wait 5 minutes before powering on.
⚠️ NEVER use window cleaner (ammonia) or alcohol — ruins anti-glare coatings. Never press hard on panel.
🎧 Mic & Headset TesterTest your microphone, headset output, and audio levels
🎤 Microphone Input
Not started
PEAK dB
AVG dB
STATUS
OK
Mic issues?
• Allow browser microphone permission
• Windows: Settings → Sound → Input device
• Check mic isn't muted in system tray
• Try a different browser (Chrome works best)
🔊 Headset / Speaker Output
Volume 50%
Test Tones
Stereo Channels
Frequency Sweep
No sound?
• Check Windows Output device selection
• Ensure volume is not muted
• 3.5mm: plug into correct jack (green = output)
• USB headsets may need drivers installed
RGB ControlSIMULATOR
Mode
PREVIEW
Color
26
75
255
85%
5
Device Info
Platform
Input Precision
Timer sourceperformance.now()
Timer precision
Cross-origin isolated
4K/8K capable
getCoalescedEvents
TroubleshootQ&A DIAGNOSIS
Select your issue below. Issues are grouped by device type — keyboard, mouse, wireless, and headset. Follow the steps in order. If none of the solutions work, contact our support team.
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Still not working?
Our support team is ready to help you diagnose your keyboard or mouse issue.
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