Unless you're still supporting IE, which is a big gotcha for some I know, then modules are a go now: https://caniuse.com/?search=modules https://caniuse.com/?se

Unless you're still supporting IE, which is a big gotcha for some I know, then modules are a go now: https://caniuse.com/?search=modules https://caniuse.com/?search=modules Vite is one of the first tools I know of taking advantage of this: https://vitejs.dev/ https://vitejs.dev/ "On demand file serving over native ESM, no bundling required!" I just launched a small production site using SvelteKit, which now uses this under the hood.