An incremental parsing system for programming tools
Parser generator to read, process, or translate structured text
Ox is an attribute-grammar evaluator generator.
Instaparse aims to be the simplest way to build parsers in Clojure
Parser generator, targetting C, C++, Python, JavaScript, JSON and XML
Free data acquisition and data visualization cross-platform software
PEG.js is a parser generator for JavaScript
Another C++ based JSON Library (/w Parser/Generator/Navigator)
A LALR(1) Parser Generator for JavaScript written in JavaScript
Java lexical analyzer generator