universal-middleware

Write middleware once, target Hono, Express, Cloudflare, and more!

One middleware, multiple adapters

Automatically generate compatible middlewares for popular servers, from a single codebase

Bundle your middlewares for Hono, Express, Fastify, Cloudflare, h3, Hattip, Elysia and Webroute

Write middlewares following established web standards (WinterCG, WHATWG) to ensure consistency and future-proofing