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Bunway – Express-compatible web framework for Bun

Bunway – Express-compatible web framework for Bun

by rockstarsb·Mar 9, 2026·3 points·0 comments
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AI Analysis

●●●BangerSolve My ProblemSlickShip It

Drop-in Express clone for Bun with 16 built-in middleware, 3-4x faster, zero rewrites.

Strengths
  • •True Express API compatibility—same req/res/next patterns, routes, and middleware chains; existing codebases work unchanged.
  • •16 built-in middleware eliminate dependency sprawl (cors, sessions, auth, uploads, rate-limiting all included, no npm installs).
  • •Genuine speed win: native Bun.serve() avoids Node.js overhead; benchmarks show 3-4x faster on same code.
Weaknesses
  • •95% API coverage implies gaps—edge cases with advanced Express patterns (custom error handlers, async middleware) may break.
  • •Unproven ecosystem: no major adopters or production deployments visible; relative newness of Bun itself adds adoption friction.
Target Audience

Express developers migrating to Bun, backend developers seeking drop-in Node.js replacement without rewriting

Similar To

Hono · Elysia · Fastify

Post Description

Express developers moving to Bun face a full rewrite — every Bun framework (Hono, Elysia) has a completely different API. bunway keeps the exact same app.get(), app.post(), req, res, next pattern but runs on Bun's native HTTP server. Batteries included: routing, CORS, sessions, auth, WebSockets and more in one import. Would love feedback from anyone who's tried migrating Express projects to Bun.

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