Java Grammar

Open-source Java projects categorized as Grammar
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Parsing Parser Java parser-generator Compiler-compiler
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Top 8 Java Grammar Projects

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Grammar

  1. ANTLR

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

    Project mention: RCParsing VS ANTLR - a user suggested alternative | libhunt.com/r/RCParsing | 2025-09-19

    ANTLR is a lexer-based, powerful tool for creating own DSL and analyzing them. But it's and overkill for simple languages (JSON, for example), while RCParsing is good for both complex and simple languages, allows you to choose: work with AST or immediately calculate value while parsing.

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  3. languagetool

    Style and Grammar Checker for 25+ Languages

    Project mention: Grammarly is using our identities without permission | news.ycombinator.com | 2026-03-09

  4. Grammar-Kit

    Grammar files support & parser/PSI generation for IntelliJ IDEA

    Project mention: The Expression Problem and its solutions | news.ycombinator.com | 2025-09-07

  5. JFlex

    The fast scanner generator for Javaâ„¢ with full Unicode support

  6. autumn

    A Java parser combinator library written with an unmatched feature set. (by norswap)

  7. VNameGenerator

    A Java implementation of various procedural name generation algorithms, including combinatorial, consonant vowel, context-free grammar, and Markov chain.

  8. rekex

    PEG parser generator for Java 17 - grammar as algebraic datatypes

  9. java-probabilistic-earley-parser

    🎲 Efficient Java implementation of the probabilistic Earley algorithm to parse Stochastic Context Free Grammars (SCFGs)

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Java Grammar related posts

  • Grammarly is using our identities without permission

    3 projects | news.ycombinator.com | 9 Mar 2026

  • Language Tool – Your writing assistant

    1 project | news.ycombinator.com | 6 Mar 2026

  • Bugs across the world's languages. Let's check LanguageTool

    3 projects | dev.to | 16 Dec 2025

  • Grammarly rebrands to 'Superhuman,' launches a new AI assistant

    2 projects | news.ycombinator.com | 29 Oct 2025

  • RCParsing VS ANTLR - a user suggested alternative

    2 projects | 19 Sep 2025

  • The Expression Problem and its solutions

    3 projects | news.ycombinator.com | 7 Sep 2025

  • Show HN: Refine – A Local Alternative to Grammarly

    5 projects | news.ycombinator.com | 14 Jul 2025
  • A note from our sponsor - SaaSHub
    www.saashub.com | 10 Jun 2026
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Index

What are some of the best open-source Grammar projects in Java? This list will help you:

# Project Stars
1 ANTLR 18,901
2 languagetool 14,545
3 Grammar-Kit 766
4 JFlex 629
5 autumn 133
6 VNameGenerator 94
7 rekex 68
8 java-probabilistic-earley-parser 37

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