Get JSON values quickly, JSON parser for Go
Parser for Rust source code
Parser generator to read, process, or translate structured text
Node.js body parsing middleware
Straightforward, type-safe argument parsing for Swift
Rust derive-based argument parsing optimized for code size
JSON Parser written in C that outputs JSON into D-List list objects
A fast JSON parser/generator for Java
Instaparse aims to be the simplest way to build parsers in Clojure
PEG.js is a parser generator for JavaScript
Another C++ based JSON Library (/w Parser/Generator/Navigator)