A desktop neural network simulator for education and experimentation. Build network architectures, train with backpropagation, and visualize learning in real-time. Perfect for AP Computer Science, college intro to AI, or anyone curious about how machine learning works.

• Backpropagation engine with arbitrary network layers
• Real-time topology visualization and training error charts
• Configurable loss functions (MSE and cross-entropy)
• 9 built-in problem presets to get started
• Pattern file I/O for custom datasets
• Multiple themes (Dark, Hacker Green, System/Light)
• Works offline — runs on Windows, Mac, and Linux

Requires: Java 17 or later. Run with: java -jar HeronixNeuroSim-2.0.0.jar

A free 3D modeling application designed for students ages 6-14. Click, drag, and create — no experience needed. Build anything from simple shapes to complex models with boolean operations, then export to STL for 3D printing. Powered by Three.js WebGL rendering with real-time shadows and lighting.

• 25+ shapes: cubes, spheres, stars, hearts, letters A-Z, numbers 0-9
• Move, rotate, scale with visual gizmo guides and snap grid
• Boolean CSG — cut holes, combine shapes, create complex geometry
• Export to STL, OBJ, GLTF (3D printing ready)
• 3 interactive tutorials + built-in geometry and 3D printing guides
• 10-color palette + custom color picker, undo/redo, grouping
• Works offline — no internet, no account, no data collection

Requires: Java 17 or later. Desktop application with embedded Chromium (JCEF) for 3D rendering.