Open source
Babel
Compiler that turns modern JavaScript into widely supported code
Languages and RuntimesJavaScript compiler
Alternatives to SWC
12 tools like SWC, chosen by what they do. About SWC
Open source
TypeScript
JavaScript with static types that catches errors while you code
Languages and RuntimesTyped superset of JavaScript
Open source
Rspack
Rust-based bundler with a webpack-compatible API and plugins
Build ToolsRust-based webpack alternative
Free
Bun
Fast JavaScript runtime with a package manager and test runner
Languages and RuntimesAll-in-one JS runtime
Open source
Node.js
Open source JavaScript runtime for servers and command line tools
Languages and RuntimesThe JavaScript runtime
Open source
Sass
CSS extension language with variables, nesting and reusable mixins
Languages and RuntimesCSS with superpowers
Open source
Open source
Open source
webpack
Module bundler that packs scripts, styles, HTML and assets for the web
Build ToolsClassic module bundler
Open source
esbuild
Extremely fast JavaScript and TypeScript bundler with a simple API
Build ToolsExtremely fast bundler
Open source
Compiler Explorer
Online compiler that shows the assembly output of your code
Online PlaygroundsSee compiled assembly live
Free
TypeScript Playground
Browser editor to try TypeScript and see compiled output
Online PlaygroundsTry TypeScript in browser