# @swc/wasm

> wasm module for swc

Latest version **1.16.2** (published 2026-09-04) · Apache-2.0 license · 0 weekly downloads

## Install

```sh
npm install @swc/wasm
pnpm add @swc/wasm
yarn add @swc/wasm
bun add @swc/wasm
```

## Health

**Score 70/100 (B)** — status: active.

Positive: has types; no vulnerabilities; has provenance; recently updated; high maintenance score; popular repo.

Warnings: low downloads; no esm support; large bundle.

## Facts

| | |
|---|---|
| Version | 1.16.2 |
| Published | 2026-09-04 |
| First published | 2020-05-07 |
| Weekly downloads | 0 |
| License | Apache-2.0 |
| TypeScript types | bundled |
| Module format | CommonJS |
| Dependencies | 0 |
| Unpacked size | 19.4 MB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Provenance | attested (GitHub Actions) |
| GitHub stars | 34197 |
| Maintainers | kdy1 |

## Links

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

## Recent versions

- 1.16.2 (latest) — 2026-09-04
- 1.16.2-nightly-20260904.1 (nightly) — 2026-09-04
- 1.16.1 — 2026-08-19
- 1.16.1-nightly-20260819.1 — 2026-08-19
- 1.16.0 — 2026-08-14
- 1.16.0-nightly-20260814.1 — 2026-08-14
- 1.15.47 — 2026-07-29
- 1.15.47-nightly-20260729.1 — 2026-07-29
- 1.15.46 — 2026-07-19
- 1.15.46-nightly-20260719.1 — 2026-07-19
- 1.15.43 — 2026-06-22
- 1.15.43-nightly-20260622.1 — 2026-06-22
- 1.15.41 — 2026-06-09
- 1.15.41-nightly-20260609.1 — 2026-06-09
- 1.15.40 — 2026-05-23
- … 795 more at https://npm.io/package/@swc/wasm/versions

## README

<p align="center">
  <a href="https://swc.rs/">
    <img alt="swc" src="https://raw.githubusercontent.com/swc-project/logo/master/swc.png" width="546">
  </a>
</p>

<p align="center">
  Make the web (development) faster.
</p>

<p align="center">
  <a href="https://www.npmjs.com/package/@swc/core"><img alt="downloads (@swc/core)" src="https://img.shields.io/npm/dm/@swc/core?label=downloads%20%28%40swc%2Fcore%29"></a>
  <a href="https://www.npmjs.com/package/@swc/counter?activeTab=dependents"><img alt="downloads (3rd party)" src="https://img.shields.io/npm/dm/@swc/counter?label=downloads%20%283rd%20party%29"></a>
</p>
<p align="center">
  <a href="https://crates.io/crates/swc_ecma_parser"><img alt="undefined" src="https://img.shields.io/crates/d/swc_ecma_parser.svg?label=crates.io%20downloads"></a>
  <a href="https://github.com/swc-project/swc/releases/latest"><img alt="GitHub release (latest SemVer)" src="https://img.shields.io/github/v/release/swc-project/swc"></a>
</p>
<p align="center">
  <img alt="GitHub code size in bytes" src="https://img.shields.io/github/languages/code-size/swc-project/swc">
  <a href="https://github.com/swc-project/swc/blob/main/package.json#L22"><img alt="node-current (scoped)" src="https://img.shields.io/node/v/@swc/core"></a>
</p>
<p align="center">
  <a href="https://discord.com/invite/GnHbXTdZz6"><img alt="Discord" src="https://img.shields.io/discord/889779439272075314"></a>
</p>

SWC (stands for `Speedy Web Compiler`) is a super-fast TypeScript / JavaScript compiler written in Rust. It's a library for Rust and JavaScript at the same time. If you are using SWC from Rust, see [rustdoc](https://rustdoc.swc.rs/swc/) and for most users, your entry point for using the library will be [parser](https://rustdoc.swc.rs/swc_ecma_parser/).

Also, SWC tries to ensure that

> If you select the latest version of each crates, it will work

for rust users.

MSRV of crates is currently `1.73`.

To update all SWC crates you use, you can run `curl https://raw.githubusercontent.com/swc-project/swc/main/scripts/update-all-swc-crates.sh | bash -s`. This script will update all dependencies to the latest version and run `cargo build` to ensure that everything works.
Note that you need

-   `jq`
-   `cargo upgrade`

command to run the script.

Supported Node Versions:

-   Node v10+ for usage
-   Node v20+ for development

---

If you are using SWC from JavaScript, please refer to [docs on the website](https://swc.rs/docs/installation/).

# Documentation

Check out the documentation [in the website](https://swc.rs/docs/installation/).

# Features

Please see [comparison with babel](https://swc.rs/docs/migrating-from-babel).

# Performance

Please see [benchmark results](https://swc.rs/docs/benchmark-transform) on the website.

# Supporting development

<h2 align="center">Supporting swc</h2>

## Star History

[![Star History Chart](https://api.star-history.com/svg?repos=swc-project/swc&type=Timeline)](https://www.star-history.com/#swc-project/swc&Timeline)

## Powered by

[![JetBrains logo.](https://resources.jetbrains.com/storage/products/company/brand/logos/jetbrains.svg)](https://jb.gg/OpenSourceSupport)

## Sponsors

<p align="center">
  <a href="https://opencollective.com/swc">
    <img src="https://raw.githubusercontent.com/swc-project/swc-sponsor-images/main/sponsors.svg" alt="Sponsors">
  </a>
</p>

SWC is a community-driven project, and is maintained by a group of [volunteers](https://swc.rs/docs/team). If you'd like to help support the future of the project, please consider:

-   Giving developer time on the project. (Message us on [Discord](https://discord.gg/GnHbXTdZz6) (preferred) or [Github discussions](https://github.com/swc-project/swc/discussions) for guidance!)
-   Giving funds by becoming a sponsor (see https://opencollective.com/swc)!

## Contributing

See [CONTRIBUTING.md](CONTRIBUTING.md). You may also find the architecture
documentation useful ([ARCHITECTURE.md](ARCHITECTURE.md)).

## License

SWC is primarily distributed under the terms of the Apache License (Version 2.0).

See [LICENSE](LICENSE) for details.

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