Individual skill
swc-pro
Use SWC for fast transpilation: config, plugins, integration with Next.js/Vite/Rollup, and migration from Babel. Use when replacing Babel or speeding up transforms.
skills/swc-pro/SKILL.md
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# SWC Pro
A practical guide to SWC (Speedy Web Compiler): the Rust-based platform for JavaScript/TypeScript transformation — configuration, framework integrations, the plugin system, and migrating from Babel without breaking behavior.
## Overview
SWC replaces Babel's transform pipeline with a Rust implementation that's roughly 20x faster, covering parsing, transpiling (TS/JSX → JS), and minification (`swcMinify`). It's the engine behind Next.js's compiler and available as a loader/plugin for webpack, Vite, and Rollup. The mental shift from Babel: **SWC is a single fast binary with a narrower plugin story** — most Babel plugins have no direct equivalent, so migration means re-expressing config, not porting plugins one-to-one.
## When to use
- Speeding up webpack builds (`swc-loader` replacing `babel-loader`).
- Next.js projects (already the default compiler — know how to configure it).
- Vite/Rollup pipelines via `@vitejs/plugin-react-swc` / `rollup-plugin-swc`.
- Minification with `swcMinify` as a terser alternative.