Dev Tools · Web

Lentil-JSX

In-browser React bundler & editor, powered by ESBuild.

Lentil-JSX is a browser-based React playground: write JSX or TSX in the editor and watch it get transpiled, bundled, and rendered instantly — no local setup, no server round-trips. ESBuild, compiled to WebAssembly, does the heavy lifting right in the browser.

Packages are pulled from npm on demand and cached aggressively, so repeat builds stay fast even with heavy dependencies. The codebase is a Lerna monorepo with a publishable CLI, a local Express API, and the React client.

Highlights

  • In-browser transpiling & bundling with ESBuild (WASM)
  • On-the-fly npm imports with layered caching
  • Monaco-powered editing with TypeScript support
  • Redux-managed, notebook-style code cells
  • Lerna monorepo with a published CLI package

Languages

TypeScriptJavaScript

Stack

ReactReduxESBuildExpressMonaco EditorLernaBabelTailwindCSSChart.jsVite