ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

PEG.js: Parser generator for JavaScript

Parsing Expression Grammar (PEG) parser generator for Rust

A parser generator for visibly pushdown languages.

Command pigeon generates parsers in Go from a PEG grammar.

A single file C++ header-only PEG (Parsing Expression Grammars) library

a parser and lexer generator as a Rust procedural macro

The implementation of the Rascal meta-programming language (including interpreter, type checker, parser generator, compiler and JVM based run-time system)

竜 TatSu generates Python parsers from grammars in a variation of EBNF

Symbolic parser generator for Julia language expressions using REDUCE algebra term rewriter

💡 Build your own programming language! A C++17 PEG parser generator supporting parser combination, memoization, left-recursion and context-dependent grammars.

Home of LoycCore, the LES language of Loyc trees, the Enhanced C# parser, the LeMP macro preprocessor, and the LLLPG parser generator.

The Zephir Parser delivered as a C extension for the PHP language.

PEGs for Nim, another take

A modified version of the Irony project (https://irony.codeplex.com) with .NET Core support

a C# embeddable lexer and parser generator (.Net core)

JavaScript practical parser generator library using combinators

Generates generalised LL (GLL) parsers with matching lexers

Nice parsers in OCaml without the boilerplate

EBNF parser and generic parser generator for Ruby.

A small and easy to use parser generator. Specify your grammar in pure java and compile dynamically. Especially suitable for DSL creation in java.

Lexer Generator and Parser Generator as a Library in Nim.

GNU Bison

ANTLR as a libray for JVM based languages

Grammatica is a C# and Java parser generator (compiler compiler)

Plugin for pegjs to generate TypeScript parsers.

Generates Elm types, JSON decoders, JSON encoders and fuzz tests from JSON schema specifications

Convenient parser generator for Python(check out https://github.com/thautwarm/RBNF for an advanced version).