linear time regular expression matching in Java
software for DFA method
Compiles regular expressions into modular NFA
Generator of lexical analyzers in C and C++. Unicode Supported.
Raptor - Web application firewall [ Stable version ]
CodeConics is a C# lexer/parser/syntax tree generatior
A free automata simulator that simulates DFA/NFA/DPDA/NPDA/STM
convert finite automata
Java Regex API
automata editor