# @webassemblyjs/wasm-parser

> WebAssembly binary format parser

Latest version **1.14.1** (published 2024-11-06) · MIT license · 0 weekly downloads

## Install

```sh
npm install @webassemblyjs/wasm-parser
pnpm add @webassemblyjs/wasm-parser
yarn add @webassemblyjs/wasm-parser
bun add @webassemblyjs/wasm-parser
```

## Health

**Score 30/100 (F)** — status: maintenance-mode.

Positive: esm support; no vulnerabilities.

Warnings: low downloads; no types.

Negative: stale; low maintenance score.

## Facts

| | |
|---|---|
| Version | 1.14.1 |
| Published | 2024-11-06 |
| First published | 2018-02-25 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | none |
| Module format | ESM + CommonJS |
| Dependencies | 6 |
| Unpacked size | 134.2 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 834 |
| Author | Sven Sauleau |
| Maintainers | xtuc |
| Keywords | webassembly, javascript, ast, parser, wasm |

## Links

- npm: https://www.npmjs.com/package/@webassemblyjs/wasm-parser
- Repository: https://github.com/xtuc/webassemblyjs
- Homepage: https://github.com/xtuc/webassemblyjs#readme
- Issues: https://github.com/xtuc/webassemblyjs/issues
- npm.io page: https://npm.io/package/@webassemblyjs/wasm-parser

## Dependencies (6)

- [@webassemblyjs/ast](https://npm.io/package/@webassemblyjs/ast.md) 1.14.1
- [@webassemblyjs/utf8](https://npm.io/package/@webassemblyjs/utf8.md) 1.13.2
- [@webassemblyjs/leb128](https://npm.io/package/@webassemblyjs/leb128.md) 1.13.2
- [@webassemblyjs/ieee754](https://npm.io/package/@webassemblyjs/ieee754.md) 1.13.2
- [@webassemblyjs/helper-api-error](https://npm.io/package/@webassemblyjs/helper-api-error.md) 1.13.2
- [@webassemblyjs/helper-wasm-bytecode](https://npm.io/package/@webassemblyjs/helper-wasm-bytecode.md) 1.13.2

## Alternatives

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## Recent versions

- 1.14.1 (latest) — 2024-11-06
- 1.13.2 — 2024-11-06
- 1.13.1 — 2024-11-06
- 1.12.1 — 2024-03-13
- 1.11.6 — 2023-05-09
- 1.11.5 — 2023-04-16
- 1.11.3 — 2022-07-02
- 1.11.1 — 2021-07-05
- 1.11.0 — 2021-01-07
- 1.10.1 — 2021-01-07
- 1.10.0 — 2021-01-07
- 1.9.1 — 2020-10-03
- 1.9.0 — 2020-02-01
- 1.8.5 — 2019-02-24
- 1.8.4 — 2019-02-19
- … 74 more at https://npm.io/package/@webassemblyjs/wasm-parser/versions

## README

# @webassemblyjs/wasm-parser

> WebAssembly binary format parser

## Installation

```sh
yarn add @webassemblyjs/wasm-parser
```

## Usage

```js
import { decode } from "@webassemblyjs/wasm-parser";
import { readFileSync } from "fs";

const binary = readFileSync("/path/to/module.wasm");

const decoderOpts = {};
const ast = decode(binary, decoderOpts);
```

### Decoder options

- `dump`: print dump information while decoding (default `false`)
- `ignoreCodeSection`: ignore the code section (default `false`)
- `ignoreDataSection`: ignore the data section (default `false`)

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