// the find
gofiber/fiber
⚡️ Express inspired web framework written in Go
Fiber is a Go web framework built on top of fasthttp, designed to feel familiar to Express.js developers making the switch to Go. It trades stdlib compatibility for raw throughput — fasthttp bypasses `net/http` entirely, which is both the source of its performance advantage and its main adoption risk. Aimed at Go developers building high-traffic APIs who don't need to share middleware with the `net/http` ecosystem.
1. Fasthttp underpinning is genuinely fast — TechEmpower plaintext benchmarks put it near the top of Go frameworks, and that's not marketing, it's measurable. 2. The middleware catalog is unusually complete for a framework this focused: CSRF, idempotency, encrypted cookies, early-data TLS 1.3, and paginate are things most frameworks leave to the user. 3. v3 adds direct `net/http` handler adaptation at the router level, which meaningfully softens the ecosystem isolation problem — you can drop in existing middleware without a full rewrite. 4. The zero-allocation design on `fiber.Ctx` is consistent and documented honestly, including the gotcha that context values must not escape the handler.
1. The `unsafe` usage that powers zero-allocation means Fiber sometimes lags behind new Go versions — the README itself warns about this, which is honest but not great for teams on a fast Go release cycle. 2. Fasthttp's non-standard HTTP/1.1 behavior has historically caused subtle bugs with certain proxies and clients; HTTP/2 support requires the contrib package and is not first-class. 3. The Express-style handler adaptation (`fiber.Req`/`fiber.Res`) added in v3 creates a third calling convention alongside `fiber.Ctx` and `net/http` — the codebase now has three different ways to write a handler and no clear guidance on which to prefer for new code. 4. Session and cache middleware depend on the gofiber/storage abstraction, which means pulling in additional dependencies for production backends (Redis, Postgres) that have their own versioning and compatibility surface.