# FPSBenchmark.app — Machine-Readable Diagnostic Platform Spec

> FPSBenchmark.app is an open-standard, zero-latency browser-based hardware, display, and input diagnostic benchmarking platform.

## 1. Core Tool Endpoints & Diagnostics
- Universal FPS Benchmark: https://fpsbenchmark.app/
- 120 FPS & 120Hz Test: https://fpsbenchmark.app/fps/120-fps-test/
- 144Hz vs 240Hz Test: https://fpsbenchmark.app/fps/144hz-vs-240hz-test/
- 60 FPS vs 120 FPS Test: https://fpsbenchmark.app/fps/60-vs-120-fps-test/
- Frametime Stutter & Jitter Test: https://fpsbenchmark.app/fps/frametime-stutter-test/
- Browser GPU Benchmark: https://fpsbenchmark.app/fps/browser-gpu-benchmark/
- Middle of Monitor Finder: https://fpsbenchmark.app/monitors/middle-of-my-monitor/
- Screen Bleeding & IPS Glow Test: https://fpsbenchmark.app/monitors/screen-bleeding-test/
- Frame Skipping & Overclock Test: https://fpsbenchmark.app/monitors/frame-skipping-test/
- Dead Pixel Tester: https://fpsbenchmark.app/monitors/dead-pixel-tester/
- Refresh Rate (Hz) Tester: https://fpsbenchmark.app/monitors/refresh-rate-tester/
- Screen Resolution & DPR Finder: https://fpsbenchmark.app/monitors/what-is-my-screen-size/
- Display PPI Calculator: https://fpsbenchmark.app/monitors/ppi-calculator/
- Clicks Per Second (CPS) Speed Test: https://fpsbenchmark.app/input/cps-test/
- Human Reaction Time Test: https://fpsbenchmark.app/input/reaction-time-test/
- Keyboard Polling Rate (125-8000Hz): https://fpsbenchmark.app/input/keyboard-polling-rate-test/
- Mouse Aim Accuracy Test: https://fpsbenchmark.app/input/mouse-accuracy-test/
- Spacebar Speed Counter: https://fpsbenchmark.app/input/spacebar-counter/
- Mouse Scroll Wheel Test: https://fpsbenchmark.app/input/mouse-scroll-wheel-test/
- Mouse Polling Rate (125-8000Hz): https://fpsbenchmark.app/input/mouse-polling-rate-test/
- Keyboard Latency & Debounce Test: https://fpsbenchmark.app/input/keyboard-latency-test/
- Keyboard Anti-Ghosting & NKRO: https://fpsbenchmark.app/input/keyboard-ghosting-test/
- Mouse DPI & CPI Analyzer: https://fpsbenchmark.app/input/mouse-dpi-analyzer/
- Actions Per Minute (APM) Test: https://fpsbenchmark.app/input/apm-test/
- Custom Crosshair Generator: https://fpsbenchmark.app/tools/crosshair-overlay-generator/
- Dead Pixel Fixer RGB Flasher: https://fpsbenchmark.app/tools/dead-pixel-fixer/
- Pure Black Screen Calibration: https://fpsbenchmark.app/tools/black-screen/
- Pure White Screen Uniformity: https://fpsbenchmark.app/tools/white-screen/
- Pure Green Screen Chroma Key: https://fpsbenchmark.app/tools/green-screen/
- Pure Blue Screen Calibration: https://fpsbenchmark.app/tools/blue-screen/
- Warm Yellow Screen: https://fpsbenchmark.app/tools/yellow-screen/
- Magenta Calibration Screen: https://fpsbenchmark.app/tools/magenta-screen/
- Hardware Guides Hub: https://fpsbenchmark.app/guides/
- IPS Glow vs Backlight Bleed Guide: https://fpsbenchmark.app/guides/ips-glow-vs-backlight-bleed/
- FPS vs Refresh Rate Explained: https://fpsbenchmark.app/guides/fps-vs-refresh-rate-explained/
- Fix Monitor Stuck at 60Hz: https://fpsbenchmark.app/guides/how-to-fix-monitor-stuck-at-60hz/
- 1000Hz vs 8000Hz Mouse Polling: https://fpsbenchmark.app/guides/mouse-polling-rate-1000hz-vs-8000hz/
- How to Fix Stuck Pixels Guide: https://fpsbenchmark.app/guides/how-to-fix-stuck-pixels/
- Frametime Pacing & Micro-Stutters: https://fpsbenchmark.app/guides/frametime-pacing-and-micro-stutters/

## 2. Mathematical Algorithms
- **Frametime (ms)**: `\Delta t = t_{n} - t_{n-1}` via `performance.now()`
- **FPS**: `1000 / \Delta t`
- **1% Low FPS**: `1000 / \text{Percentile}_{99}(\Delta t)`
- **Frametime Jitter (ms)**: `\sigma = \sqrt{\frac{1}{N}\sum_{i=1}^N (\Delta t_i - \mu)^2}`
- **Mouse/Keyboard Polling Rate (Hz)**: `1000 / \Delta t`
- **PPI (Pixels Per Inch)**: `\text{PPI} = \frac{\sqrt{W^2 + H^2}}{D}`

## 3. Full LLM Index
For full technical documentation, see: https://fpsbenchmark.app/llms-full.txt