Lesson 3 / 30

Brief History and Evolution

From ES5 to modern tooling: how transpilation evolved.

Babel's journey since 2014

Babel (originally 6to5) launched to convert ES6 to ES5 for IE10 users. Over time, it became the standard for JSX, TypeScript, and cutting-edge features. Still JavaScript-based.

The SWC revolution (2018+)

SWC emerged as a Rust rewrite of Babel, offering massive performance gains. It's now the default in Vercel's Next.js, tightly integrated with modern frameworks, and the future of transpilation.

Coexistence, not replacement

Babel is still widely used and mature. SWC is faster but younger. Both are thriving; many projects run SWC but fall back to Babel plugins for edge cases.

Current ecosystem maturity

Babel has 1000+ community plugins. SWC has fewer but covers 95% of use cases. For most projects, SWC's built-in features are sufficient.