DFA Simulator
Design, visualize, and test Deterministic Finite Automata
State Diagram
States: 0
Input Alphabet
Controls
Add State
Remove State
Rename State
Set Start State
Toggle Accepting
Add Transition
Remove Transition
Run Test
How to Use the DFA Simulator
Building Your DFA
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Add States:
Click "Add State" and name your states
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Set Start State:
Click "Set Start State" then click a state
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Mark Accepting:
Use "Toggle Accepting" to mark final states
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Add Input Symbols:
Click "+" to add alphabet symbols
Creating Transitions
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Add Transition:
Click "Add Transition", select two states, enter symbol
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Remove Transition:
Click "Remove Transition" then click an edge
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Multiple Symbols:
Transitions can have multiple input symbols
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Drag States:
Click and drag states to rearrange the diagram
Testing Your DFA
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Test Strings:
Click "Run Test" and enter a string to test
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Visual Feedback:
Watch states light up during string processing
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View Sequence:
Click "View Sequence" to understand how the DFA processed the string