FSM Editor

The FSM Editor provides a visual, structured environment to model states, events, and transitions for software logic, protocols, and automated workflows. It supports defining states, initial and accepting flags, and transitions with optional guards and actions. The tool validates model consistency, offers a basic simulation mode, and auto-arranges states for readability. Users can export a JSON model, generate SVG/PNG diagrams, or produce code skeletons in Python or JavaScript for integration into projects. Conceptually, the editor treats the FSM as a labeled directed graph where nodes are states and edges are transitions labeled by events. The core value lies in early verification (e.g., undefined states, non-determinism, unreachable states) and in producing artifacts that accelerate documentation, testing, and implementation. Use cases include authentication flows, protocol handshakes, parsers, and simple automation workflows. Distinctive advantages include integrated validation, lightweight simulation, and multi-format exports that bridge design and development. The tool remains lightweight by design, avoiding runtime execution while enabling ready-to-implement outputs and quick iterations for complex state behavior. It helps teams converge on a formal model before coding, reducing misinterpretations and rework. Ideal for engineers, éducators, and researchers who require precise FSM representations without embedding UI concerns in the modeling process.