NewGaming Diagnostics
Mouse Polling Rate Test – Real-Time Hz & Sensor Latency
Measure your mouse sensor sampling rate in real-time Hertz (Hz), peak report rate, and signal delay intervals. Benchmark 125Hz, 500Hz, 1000Hz gaming tiers.
Open ToolMouse Scroll Speed Test – Wheel Velocity & Jitter Checker
Test your mouse scroll wheel speed in real-time pixels per second, track directional velocity, and diagnose faulty scroll encoder chatter or reverse jumping.
CONTINUOUSLY SCROLL YOUR MOUSE WHEEL INSIDE THIS BOX
Scroll up and down. Page scrolling is locked inside this area to accurately benchmark velocity and detect faulty reverse jumps.
Awaiting scroll input...
Current Scroll Speed0Pixels / sec
Max Scroll Speed0Peak Pixels / sec
Total Pixels Scrolled0pixels
Wheel Consistency100%0 jumps detected
Scroll Wheel Event Stream (Last 40 Events):0 events
Scroll your mouse wheel in the box above to start testing velocity.
⚡ Automated Continuous Scrolling
Automate Continuous Scrolling & Infinite Page Scraping
Bypass manual scroll fatigue. Automate infinite scroll feeds, long document reviews, and lazy-loaded web scraping.
How to Test Mouse Scroll Speed & Encoder Health
1
Place Cursor in the Test Box
Hover or click inside the dashed interactive scroll pad. Page scrolling is locked to measure raw input.
2
Scroll Rapidly Up and Down
Scroll continuously to observe your velocity gauge in Pixels/sec, peak speed, and directional indicators.
3
Verify Encoder Consistency
Check the real-time event log for red warning flags indicating reverse jitter (faulty scroll encoder bounce).
Key Features of Mouse Scroll Speed Tester
Velocity in Pixels / Sec
Calculates smooth physics-based scroll speed using high-precision performance.now() timestamps.
Reverse Jump Detection
Flags physical encoder jitter when consecutive scroll ticks suddenly jump in opposite directions.
Directional Visualizer
Provides instant visual wheel rotation and directional badges for both UP and DOWN scroll ticks.
Detailed Event Stream Log
Inspect exact delta pixel values and encoder status for the last 40 sequential wheel movements.
Mouse Scroll Encoder Diagnostics & Velocity Benchmarks
Technical comparison between mechanical vs. optical rotary encoders, jitter failure thresholds, and typical scroll velocities.
| Encoder Type / Metric | Mechanism & Durability | Typical Velocity Range | Common Failure Mode (Jitter) |
|---|---|---|---|
| Mechanical Rotary Encoder (TTC, ALPS, Kailh) | Physical metallic brush contacts (1M–5M cycles) | 800 – 3,500 px/sec | Dust/debris buildup causes intermittent reverse bouncing |
| Optical Encoder (Razer, SteelSeries) | Infrared light beam interruption (20M–50M cycles) | 1,200 – 6,000+ px/sec | Immune to contact bounce; failures caused by sensor misalignment |
| Free-Spin / Hyper-Fast Mode (Logitech MagSpeed) | Electromagnetic clutch frictionless freewheel | 8,000 – 15,000+ px/sec | Overshoot inertia; require adaptive micro-braking |
| Healthy Consistency Score | Continuous single-direction scroll delta | > 98% Consistent | < 90% indicates physical chatter requiring cleaning/replacement |
Frequently Asked Questions
Clear answers about using this tool and automating workflows with RunMacro.
What is scroll wheel reverse jump (encoder jitter)?
Scroll wheel reverse jump (encoder chatter or jitter) occurs when physical debris, contact oxidation, or wear inside the mechanical rotary encoder causes the wheel sensor to register erratic upward ticks while you are scrolling downward (or vice versa).
Can this tool fix a jumping scroll wheel?
This tool is a browser-based diagnostic utility that accurately detects and logs reverse encoder chatter in real time. Physical fixes involve using compressed air to clear debris, applying electronic contact cleaner to the encoder, or automating scrolling using RunMacro to bypass hardware fatigue.
Does this test free-spinning / infinite scroll wheels?
Yes. Mice with frictionless or free-spinning modes (such as Logitech MagSpeed or G502 dual-mode wheels) can be benchmarked here. Peak velocities often exceed 10,000+ pixels per second in continuous free-wheel mode.
How can RunMacro automate repetitive scrolling?
RunMacro allows you to record or configure automated scrolling loops, smooth document reading flows, and microsecond-precise navigation tasks without manual scroll wheel strain.
Related Free Tools
Explore other helpful browser-based utilities in the same category.