Awesome JS Tooling not in JS

A curated list of JavaScript tooling not written in JavaScript

Contents

• Bundlers
• Compilers
• Engines
• Formatters
• Linters
• Miscellaneous
• Related Articles

Bundlers

• esbuild - JavaScript bundler in Go.
• Parcel - Web application bundler, with its JavaScript transformer written in Rust on top of swc (source).
• Bun - JS, TS, JSX bundler, JS and CSS transpiler, dev server and JS runtime environment, written in Zig.
• Turbopack - incremental bundler optimized for JavaScript and TypeScript, written in Rust.
• Rspack – A fast web bundler (drop-in replacement for Webpack), written in Rust.

Compilers

• swc - TypeScript/JavaScript compiler in Rust.
• Relay - JavaScript framework for building data-driven React applications, compiler in Rust.
• Paperclip - Presentational component compiler in Rust + WASM.
• Closure Compiler - in Java.

Engines

• Boa - Embeddable and experimental Javascript engine, written in Rust.
• Goja - ECMAScript/JavaScript engine, written in Go .
• Hermes - JavaScript engine optimized for React Native, written in C++.
• V8 - High-performance JavaScript and WebAssembly engine, written in C++.
• JavaScriptCore – JavaScript engine for Swift, Objective-C, and C-based apps, written in C++.

Formatters

• dprint - Pluggable and configurable code formatting platform written in Rust; supports several languages such as JavaScript/TypeScript.

Linters

• Deno Lint
• Flow - Static type checker for JavaScript, written in OCaml.
• quick-lint-js - Written in C++.
• RSLint - Extremely fast JavaScript and TypeScript linter, written in Rust. (WIP)

Miscellaneous

If you can think of a more appropriate category for the items below, PRs welcome!

• Fast Node Manager (fnm) - Node.js version manager, written in Rust.
• Volt - JavaScript Package Manager, written in Rust.
• Volta - JavaScript Tool Manager, written in Rust.
• es-module-lexer - JavaScript module syntax lexer, written in C.
• npm-dep-check-rust - Find unused dependencies in Node.js applications, written in Rust.
• Rome - Linter, compiler, bundler, and more for JavaScript, TypeScript, JSON, HTML, Markdown, and CSS, 🚧 currently being re-written in Rust (source).
• Wrangler - CLI tool to develop Clouflare Workers, written in Rust.
• Turborepo - The high-performance build system for JavaScript & TypeScript codebases, written in Go, 🚧 currently being migrated to Rust (source).
• Blueboat – all-in-one, multi-tenant serverless JavaScript runtime, written in Rust.
• Proto – A multi-language version and dependency manager, written in Rust.

Related Articles

• Writing JavaScript tools in other languages – a new trend?, Dr. Axel Rauschmayer
• The Third Age of JavaScript, Shawn (@swyx) Wang

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