Vite is the safe default for almost everything outside Next.js: it is framework-agnostic, hugely popular, stable, and backed by a massive plugin ecosystem (and it powers SvelteKit, Nuxt, Astro, SolidStart, and more). Turbopack is a Rust-based bundler aimed at very large apps and tightly coupled to Next.js, where it is the dev/build engine. Outside Next.js, choose Vite; inside Next.js, Turbopack is the path Vercel is investing in.
Vite uses native ESM in dev and Rollup (now Rolldown) for builds, and works with any framework. Turbopack is Rust-native and optimized for incremental performance on large codebases, but its real home is Next.js. The decision usually follows your framework more than raw benchmarks.
Quick takes
If you're…
You use SvelteKit, Nuxt, Astro, SolidStart, or vanilla→ViteThese are built on Vite; it is the native choice.
You are building a Next.js app→TurbopackTurbopack is Next.js’s dev/build engine going forward.
You need a mature, broad plugin ecosystem→ViteVite’s plugin ecosystem is large and battle-tested.
You have a very large app and want Rust-native incrementality→TurbopackTurbopack targets fast rebuilds on big codebases.
You want maximum framework portability→ViteVite is framework-agnostic by design.