1. VerbsEnglish verb conjugation for Ruby (and Rails)
3. NodehunThe Hunspell binding for NodeJS that exposes as much of Hunspell as possible and also adds new features. Hunspell is a first class spellcheck library used by Google, Apple, and Mozilla.
6. PoormanA poor man's dependency free grammar of data manipulation
7. Gramfuzzgramfuzz is a grammar-based fuzzer that lets one define complex grammars to generate text and binary data formats.
8. Tatsu竜 TatSu generates Python parsers from grammars in a variation of EBNF
11. Fairseq GecSource code for paper: Improving Grammatical Error Correction via Pre-Training a Copy-Augmented Architecture with Unlabeled Data
12. Cargo SpellcheckChecks all your documentation for spelling and grammar mistakes with hunspell and a nlprule based checker for grammar
14. Pegparser💡 Build your own programming language! A C++17 PEG parser generator supporting parser combination, memoization, left-recursion and context-dependent grammars.
17. AlmaALgoloid with MAcros -- a language with Algol-family syntax where macros take center stage
20. GrammophoneA tool for analyzing and transforming context-free grammars.
21. BnfParse BNF grammar definitions
22. IchiranLinguistic tools for texts in Japanese language
25. PegtlParsing Expression Grammar Template Library
27. GramtestGramTest: A tool for Grammar based Test case generation
30. 3bmdmarkdown processor in CL using esrap parser
31. GreynirThe greynir.is natural language processing website for Icelandic
32. LugParsing expression grammar (PEG) embedded domain specific language and parsing machine for C++17
36. Hatlogcustom type systems for python in prolog: http://alehander42.me/prolog_type_systems
39. Rust PegParsing Expression Grammar (PEG) parser generator for Rust
42. OpencypherSpecification of the Cypher property graph query language
46. WordposPart-of-speech utilities for node.js based on the WordNet database.
47. DharmaGeneration-based, context-free grammar fuzzer.
48. JflexThe fast scanner generator for Java™ with full Unicode support
49. FeelAn open source cross-platform programming language focused on efficiency.
50. KgtBNF wrangling and railroad diagrams