This tool updates your Go import lines, adding missing ones and removing unreferenced ones. $ go get golang.org/x/tools/cmd/goimports Note the new location. This project has moved to the official go.tools repo. Pull requests here will no longer be accepted. Please use the Go process: http://golang.org/doc/contribute.html It acts the same as gofmt (same flags, etc) but in addition to code formatting, also fixes imports. See usage and editor integration notes, now moved elsewhere: http://godoc.org/golang.org/x/tools/cmd/goimports Happy hacking!