# chevrotain

> Chevrotain is a high performance fault tolerant javascript parsing DSL for building recursive decent parsers

Latest version **13.2.0** (published 2026-08-01) · Apache-2.0 license · 0 weekly downloads

## Install

```sh
npm install chevrotain
pnpm add chevrotain
yarn add chevrotain
bun add chevrotain
```

## Health

**Score 75/100 (B)** — status: active.

Positive: has types; esm support; no vulnerabilities; has provenance; recently updated; high maintenance score; high quality score.

Warnings: low downloads.

## Facts

| | |
|---|---|
| Version | 13.2.0 |
| Published | 2026-08-01 |
| First published | 2015-05-30 |
| Weekly downloads | 0 |
| License | Apache-2.0 |
| TypeScript types | bundled |
| Module format | ESM |
| Node | >=22.0.0 |
| Dependencies | 5 |
| Unpacked size | 1.2 MB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Provenance | attested (GitHub Actions) |
| GitHub stars | 2803 |
| Author | Shahar Soel |
| Maintainers | bd82 |
| Keywords | parser, syntax, lexical, analysis, grammar, lexer, tokenizer, generator, compiler, fault, tolerant |

## Links

- npm: https://www.npmjs.com/package/chevrotain
- Repository: https://github.com/Chevrotain/chevrotain
- Homepage: https://chevrotain.io/docs/
- Issues: https://github.com/Chevrotain/chevrotain/issues
- npm.io page: https://npm.io/package/chevrotain

## Dependencies (5)

- [@chevrotain/gast](https://npm.io/package/@chevrotain/gast.md) 13.2.0
- [@chevrotain/types](https://npm.io/package/@chevrotain/types.md) 13.2.0
- [@chevrotain/utils](https://npm.io/package/@chevrotain/utils.md) 13.2.0
- [@chevrotain/cst-dts-gen](https://npm.io/package/@chevrotain/cst-dts-gen.md) 13.2.0
- [@chevrotain/regexp-to-ast](https://npm.io/package/@chevrotain/regexp-to-ast.md) 13.2.0

## Alternatives

- [babylon](https://npm.io/package/babylon.md) — 5.1M weekly downloads
- [csscolorparser](https://npm.io/package/csscolorparser.md) — 3.7M weekly downloads
- [expr-eval-fork](https://npm.io/package/expr-eval-fork.md) — 1.5M weekly downloads
- [@leeoniya/ufuzzy](https://npm.io/package/@leeoniya/ufuzzy.md) — 247.7K weekly downloads
- [xml-parser](https://npm.io/package/xml-parser.md) — 78.4K weekly downloads

## Recent versions

- 13.2.0 (latest) — 2026-08-01
- 13.1.0 — 2026-07-31
- 13.0.0 — 2026-07-25
- 12.0.0 — 2026-03-13
- 11.2.0 — 2026-03-03
- 11.1.2 — 2026-02-27
- 11.1.1 — 2026-01-24
- 11.1.0 — 2026-01-03
- 11.0.3 — 2023-08-14
- 11.0.2 — 2023-08-02
- 11.0.1 — 2023-07-17
- 11.0.0 — 2023-07-11
- 10.5.0 — 2023-03-11
- 10.4.2 — 2022-11-21
- 10.4.1 — 2022-11-04
- … 160 more at https://npm.io/package/chevrotain/versions

## README

# Chevrotain

For details see:

- Chevrotain's [website](https://chevrotain.io/docs/).
- Chevrotain's root [README](https://github.com/chevrotain/chevrotain).

## Install

Using npm:

```sh
npm install chevrotain
```

or using yarn:

```sh
yarn add chevrotain
```

---
_Source: https://npm.io/package/chevrotain · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._