Go standard library, extended

Small libraries. Clear boundaries. Production ready.

go-slim is a focused collection of Go packages for HTTP, data, and everyday tooling—documented from MDX and rendered on the server.

Library catalog

Start with a clear problem, then find the right API

Build standard-library-first HTTP services, from routing and input binding to middleware and negotiation.

Move configuration and queued work through your application with explicit, focused primitives.

Handle recurring concerns such as validation, messages, processes, and observability.

A practical path

The documentation is progressive: understand the boundary, copy a working shape, then handle the details that matter in production.

Browse the catalog and choose the layer you need: Web, data, or tooling.

Each package owns one clear boundary and composes with net/http and the standard library.

Move from the guide to advanced notes, examples, and AI-ready documentation as you build.

Design principles

go-slim keeps complexity at the boundary that owns it, so application code can keep the semantics of the Go standard library.

Keep net/http request and response semantics

Give every package one replaceable responsibility

Organize docs around user tasks, not type lists

Put production boundaries next to the API

Start in the catalog, choose a focused package, and move toward a working example.