Hono

Think Express.js but 10x smaller, 10x faster, and it deploys to any JavaScript runtime without code changes.

What's free: Everything. MIT license. The entire framework, all middleware, all adapters. No paid anything.

Hono's sweet spot is edge computing and serverless. At ~14KB, it starts faster than most frameworks can parse their config files. The API is Express-like (get, post, middleware) so the learning curve is nearly flat if you know Express. TypeScript-first with great type inference. The middleware ecosystem covers JWT auth, CORS, compression, rate limiting, and more.

The catch: Hono is a backend/API framework, not a full-stack solution. No built-in SSR, no file-based routing (without a plugin), no database ORM. If you need a full-stack framework, look at Next.js or Remix. And while 'runs everywhere' is the pitch, the edge runtime restrictions (no Node.js APIs, limited filesystem access) still apply. You're writing for Web Standards, which means some npm packages won't work.