A whole-program optimizing compiler for Standard ML
Ox is an attribute-grammar evaluator generator.
It is an LL(1) recursive descent parser generator in VB.NET
Parser generator, targetting C, C++, Python, JavaScript, JSON and XML
Scannerless GLR parser generator
A LALR(1) Parser Generator for JavaScript written in JavaScript
Parser Generator based on Coco/R
A PEG based parser generator, with advanced features
Mini Python Compiler written in Java
Complete LALR(1) parser generator and engine in PHP.