Tools/Developer/Regex Finite State Machine Visualizer

Regular Expression Finite Automata (DFA/NFA) Visualizer

Deconstruct regular expressions into visual finite state machines. Step through string tokens node by node to inspect deterministic state transitions.

Pattern: ^[a-z0-9]+@[a-z]+.[a-z]{2,4}$

Active State: q0 | Step: 0 / 14 chars

? Start Node (q0)? Double Ring (Accept State)? Active State

SYNTAX REJECTED

Interactive String Validator

Test Input String:

Automata Architecture:

Validates standard user@domain.tld structure with loop-backs for repeating alphanumeric username and domain characters.

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