zaach/jison

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

4382 stars · 451 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Jison is a parser generator for JavaScript with an API similar to Bison, taking JSON or Bison-style grammar definitions and generating bottom-up (LR/LALR) parsers. It can be used from the command line or programmatically in Node.js to produce standalone parser scripts.

Use cases

• generate a parser for a custom DSL in JavaScript
• build a calculator or expression evaluator from a grammar
• convert a Bison grammar into a JavaScript parser
• write a lexer and tokenizer for a custom language
• parse structured input files in a Node.js application

When to choose

• you know Bison/Yacc and want a similar workflow in JavaScript
• you need to generate a standalone parser file from a grammar
• you're building a DSL, config format, or expression language in Node.js

When to avoid

• you need a modern, actively maintained parser generator with recent JavaScript ecosystem support
• you want PEG-style or parser-combinator parsing rather than LR grammars
• you need parsers for languages outside JavaScript runtimes

Facets

library · maturity maintenance

parser compiler developer-tools parsers programming-languages developer-tools compilers cli cross-platform parser-generator bison yacc lexer grammar lalr tokenizer nodejs javascript

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markdown · JSON · MCP: product_card(name="zaach/jison")