Desktop Tools for Game Masters and Solo Players
Bestiary Companion — An Electron app that generates TTRPG monsters with AI-powered stat blocks and local Stable Diffusion art. No cloud, no subscriptions, just powerful desktop software.
Why DMs choose Bestiary Companion
Privacy-First AI
Your monsters stay on your machine. No cloud services, no data collection, no monthly fees.
Hardware Flexibility
Works on any desktop. GPU acceleration when available, CPU fallback for universal compatibility.
Professional Output
Generate publication-quality stat blocks with AI art. Export to PDF with proper formatting.
Technical Architecture
Frontend
Electron + TypeScript + HTML/CSS
AI Backend
Python + ONNX + Stable Diffusion
Data Layer
Local JSON + System Templates
Built with modern web technologies wrapped in a desktop application. The Python backend handles AI image generation with automatic GPU detection (CUDA/DirectML) for optimal performance.
Bestiary Companion Beta
Join the beta waitlist for early access and help shape the final release.