gfmt rely on gofmt and better than goimports and gofmt, it'll rearrange all packages import and move into different groups. If your teams using difference IDE and always imports not arrange, maybe gfmt will be your first choice. it's base on execute command gofmt -s -w and then to format your imports.

go install github.com/athxx/gfmt

# gfmt [file or path]
gfmt .

goimport and gofmt will only format code but not align imports and groups packages

but gfmt will format and group up package

# goimport and gofmt would not align
package main

import (
	"fmt"
	//"strconv"
	"github.com/gorilla/mux"
	"strings"
)

func main() {
	var _ = mux.NewRouter()
	fmt.Println(strings.ToUpper("Hello, world!"))
}

but gfmt

package main

import (
	"fmt"
	"strings"

	"github.com/gorilla/mux"

	// "strconv"     <- all annotation line will group up 
)

func main() {
	var _ = mux.NewRouter()
	fmt.Println(strings.ToUpper("Hello, world!"))
}