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My Automata

An online editor for designing, testing, and sharing finite automata (DFA / NFA). Built to bridge the gap between formal computation theory and interactive intuition.

Visit the app
React React
Firebase Firebase
Figma Figma
Automata editor canvas
DFA example
NFA example
Test string panel

Overview

From theory to interaction

Finite automata are a fundamental concept in computer science theory โ€” but textbook diagrams are static and hard to reason about. My Automata makes them alive: drag nodes, draw transitions, and instantly test whether an input string is accepted or rejected.

The editor supports both Deterministic Finite Automata (DFA) and Non-Deterministic Finite Automata (NFA), letting you toggle ฮต-transitions and visualize the full state reachability tree.

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Visual canvas

Drag-and-drop node placement with interactive arrow routing

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Live simulation

Step-by-step string evaluation with state highlighting

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Shareable links

Save and share automata via Firebase-backed URLs

Let's talk.

If you're working on something that sits at the edge of engineering and real-world impact โ€” whether that's a product, a research problem, or something in between โ€” I'd like to hear about it.