A whole-program optimizing compiler for Standard ML
Parser generator, targetting C, C++, Python, JavaScript, JSON and XML
Free data acquisition and data visualization cross-platform software
A LALR(1) Parser Generator for JavaScript written in JavaScript
Parser Generator based on Coco/R
UML 2 Statemachine for C++ is a development framework with DSL support
Complete LALR(1) parser generator and engine in PHP.