wasm-inliner 🚀

Turn a .wasm file into a single JavaScript file — no fetch, no CORS.

A small utility I built to solve a simple problem:

Using WebAssembly in the browser can be annoying when you just want something to work without dealing with hosting, CORS, or MIME types.

This tool takes a .wasm file and bundles it into a single JS file you can import directly.

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Why?

Sometimes you don't want to:

• host a separate .wasm file
• deal with CORS errors
• configure a server just to load a small module

So instead:

→ bundle it into JS and run it anywhere

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Installation

npm install -g wasm-inliner

Usage

node bin/cli.js your-file.wasm

This will generate:

your-file.bundle.js

Integration

import initWasm from './your-file.bundle.js';

const instance = await initWasm();

console.log(instance.add(5, 10));

What it does

• embeds .wasm as Base64
• initializes it for you
• works in browser and Node

Limitations

• best suited for small WASM files
• complex data handling depends on your WASM setup

Notes

This is a small, simple tool — not a full build system.

If it helps you avoid a bit of setup or debugging, that's enough 🙂

License

MIT