# swc-loader

> Webpack plugin for swc

Latest version **0.2.7** (published 2026-01-14) · MIT license · 0 weekly downloads

## Install

```sh
npm install swc-loader
pnpm add swc-loader
yarn add swc-loader
bun add swc-loader
```

## Health

**Score 55/100 (C)** — status: stable.

Positive: no vulnerabilities; has provenance; high maintenance score.

Warnings: low downloads; no types; no esm support; pre 1.0.

## Facts

| | |
|---|---|
| Version | 0.2.7 |
| Published | 2026-01-14 |
| First published | 2019-01-16 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 1 |
| Unpacked size | 7.9 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Provenance | attested (GitHub Actions) |
| GitHub stars | 86 |
| Author | 강동윤 |
| Maintainers | kdy1 |

## Links

- npm: https://www.npmjs.com/package/swc-loader
- Repository: https://github.com/swc-project/pkgs
- Homepage: https://github.com/swc-project/pkgs#readme
- Issues: https://github.com/swc-project/pkgs/issues
- npm.io page: https://npm.io/package/swc-loader

## Dependencies (1)

- [@swc/counter](https://npm.io/package/@swc/counter.md) ^0.1.3

## Recent versions

- 0.2.7 (latest) — 2026-01-14
- 0.2.6 — 2024-02-05
- 0.2.4 — 2024-02-01
- 0.2.3 — 2022-06-09
- 0.2.2 — 2022-06-08
- 0.2.1 — 2022-05-15
- 0.2.0 — 2022-04-13
- 0.1.16 — 2022-04-12
- 0.1.15 — 2021-09-14
- 0.1.14 — 2021-04-28
- 0.1.13 — 2021-04-16
- 0.1.12 — 2020-05-30
- 0.1.11 — 2020-05-24
- 0.1.10 — 2020-05-11
- 0.1.9 — 2020-03-29
- … 8 more at https://npm.io/package/swc-loader/versions

## README

# swc-loader

This package allows transpiling JavaScript files using swc and webpack.

## Installation

```sh
npm i --save-dev @swc/core swc-loader webpack
```

## Usage

```js
module: {
    rules: [
        {
            test: /\.m?js$/,
            exclude: /(node_modules|bower_components)/,
            use: {
                // Use `.swcrc` to configure swc
                loader: "swc-loader"
            }
        }
    ];
}
```

You can pass options to the loader by using the option property.

```js
module: {
    rules: [
        {
            test: /\.ts$/,
            exclude: /(node_modules|bower_components)/,
            use: {
                loader: "swc-loader",
                options: {
                    jsc: {
                        parser: {
                            syntax: "typescript"
                        }
                    }
                }
            }
        }
    ];
}
```

If you get an error while using `swc-loader`, you can pass `sync: true` to get correct error message.

```js
module: {
    rules: [
        {
            test: /\.ts$/,
            exclude: /(node_modules|bower_components)/,
            use: {
                loader: "swc-loader",
                options: {
                    // This makes swc-loader invoke swc synchronously.
                    sync: true,
                    jsc: {
                        parser: {
                            syntax: "typescript"
                        }
                    }
                }
            }
        }
    ];
}
```

## Configuration Reference
Refer https://swc.rs/docs/configuring-swc

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