Download |work| Go Modules May 2026

By default, Go downloads modules to a local cache directory known as the . Difference between go mod download and go mod tidy

: This is the "housekeeper" command. It scans your source code for imports, downloads any missing modules that you've imported, and removes modules that are no longer used. It also ensures your go.sum file (which contains security checksums) is up-to-date. Where are Modules Downloaded? download go modules

: Traditionally used to "get" a package, in modern Go (1.17+), go get is the tool for adding or updating specific dependencies in your go.mod file. For example, running go get github.com/spf13/cobra@latest will download the module and record it as a requirement in your project. By default, Go downloads modules to a local

: This command is used specifically to pre-fill your local module cache. It reads your go.mod file and downloads all dependencies listed there—both direct and indirect—to your machine. This is particularly useful in CI/CD pipelines or Docker builds where you want to ensure all dependencies are present before starting a long build process. It also ensures your go

There are three primary commands you will use to download and manage modules. Each serves a specific purpose in your development workflow:

Downloading Go modules is a fundamental task for any developer working with Go (Golang). Since the introduction of the Go Modules system in version 1.11, the way we handle external dependencies has evolved from the old GOPATH model to a more reliable, versioned system. Core Commands for Downloading Go Modules