Installation

npm install @lumis-sh/lumis @lumis-sh/themes @lumis-sh/wasm-javascript

Use @lumis-sh/lumis for the per-language WASM runtime and @lumis-sh/themes for bundled themes. A parser is an ordinary dependency too: add one @lumis-sh/wasm-* package per language you highlight, or a bundle such as @lumis-sh/wasm-bundle-web, and import the language from it:

import javascript from '@lumis-sh/wasm-javascript';

Node.js, Bun, Deno, edge runtimes such as Supabase Edge Functions, Cloudflare Workers and Vercel, and browsers use the same imports. The packages include TypeScript declarations; JavaScript and TypeScript apps use the same imports. The language catalog has every npm package name. See Declaring parsers for package selection and Preloading languages to load them before highlighting.