Go, often called Golang, is a statically typed, compiled language developed at Google and designed around simplicity, fast compilation, and built-in support for concurrency. Its concurrency model centers on goroutines, lightweight threads managed by the Go runtime, and channels, which let goroutines communicate safely without much of the manual locking that concurrent code in other languages typically requires. Go compiles to a single static binary with no external runtime dependency, which makes deployment straightforward: you build the binary and copy it to a server without worrying about matching library versions.
These properties have made Go a default choice for infrastructure and networking software: container orchestration, command-line tools, API servers, and networked services that need to handle many concurrent connections efficiently. Its minimal syntax and opinionated tooling, including a built-in formatter and straightforward dependency management, keep large codebases maintained by many contributors relatively consistent in style, which matters for big open-source projects with distributed contributor bases.
Go has become especially dominant in the cloud-native and DevOps tooling space. Repos on this page written in Go include Kubernetes and Docker's Moby project, both foundational to how modern containerized infrastructure runs, Grafana, the widely used observability and dashboarding platform, HashiCorp's Terraform and Vault, and Gitea, a lightweight self-hosted Git service. Its combination of performance close to C, memory safety through garbage collection, and simple deployment has made it a common language choice for much of the infrastructure layer of the modern internet.