Scala.js
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VisitScala.js vs SWC
What both publish
| Fact | Scala.js | SWC |
|---|---|---|
| Performance | The site describes incremental compilation with 1–2 second turnaround and generated JavaScript starting at 45 kB gzipped for a full application. | The site states that SWC is 20x faster than Babel on a single thread and 70x faster on four cores. |
| Purpose | Scala.js is a Scala to JavaScript compiler for building applications that run in browsers, Node.js, and serverless environments. | SWC is an extensible Rust-based platform for fast developer tools that can compile and bundle JavaScript and TypeScript. |
Scala.js plans
- Scala.jsFree
SWC plans
- SWCFree
Pick Scala.js if…
Scala developers building browser, Node.js, serverless, or WebAssembly applications may find it suitable. It may also suit teams that want to use JavaScript libraries while working with Scala.
Pick SWC if…
SWC suits developers and build-tool authors working with JavaScript or TypeScript. It is also relevant to teams seeking compiler integrations with tools such as webpack, Rspack, or Jest.