Faker is a Go library that generates fake data for you. Whether you need to bootstrap your database, create good-looking XML documents, fill-in your persistence to stress test it, or anonymize data taken from a production service, Faker is for you.

Faker is heavily inspired by PHP”s Faker

Faker requires Go >= 1.11

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Test it in Go Playground

Start at https://play.golang.org/p/JpTagDGBaHK


Add this to your Go file

import "github.com/jaswdr/faker"

And run go get or dep ensure to get the package.

Basic Usage

Use faker.New() to create and initialize a faker generator, which can generate data by accessing properties named after the type of data you want.

import "github.com/jaswdr/faker"

func main() {
    faker := faker.New()

    // Lucy Cechtelar

    // 426 Jordy Lodge

    // Dolores sit sint laboriosam dolorem culpa et autem. Beatae nam sunt fugit
    // et sit et mollitia sed.
    // Fuga deserunt tempora facere magni omnis. Omnis quia temporibus laudantium
    // sit minima sint.

Even if this example shows a method access, each call to faker.Name() yields a different (random) result.

p := faker.Person()

for i:=0; i < 10; i++ {
  // Adaline Reichel
  // Dr. Santa Prosacco DVM
  // Noemy Vandervort V
  // Lexi O"Conner
  // Gracie Weber
  // Roscoe Johns
  // Emmett Lebsack
  // Keegan Thiel
  // Wellington Koelpin II
  // Ms. Karley Kiehn V

Generate fake data using Structs

type ExampleStruct struct {
	SimpleStringField string
	SimpleNumber int
	SimpleBool bool
	SomeFormatedString string `fake:"??? ###"`
	SomeStringArray [5]string `fake:"????"`

example := ExampleStruct{}
fmt.Printf("%+v", example)
//{SimpleStringField:87576a01c2a547b2bbf9b7c736d1db40 SimpleNumber:9223372036854775807 SimpleBool:false SomeFormatedString:cxo 321 SomeStringArray:[effr swxp ldnj obcs nvlg]}

See more formatters in docs

Get involved

Have a question? Use the Discussions page.


Create a fork and get the code.

$ go get github.com/jaswdr/faker

Do your changes, add tests, run the tests.

$ go test
ok      github.com/jaswdr/faker 0.010s

Push to your fork and send a new pull request from your fork to this repository.


Faker is released under the MIT Licence. See the bundled LICENSE file for details.