faker.js - generate massive amounts of fake data in the browser and node.js

FAQ - What happened to the original faker.js?

This project was originally created and hosted at https://github.com/marak/Faker.js/ - however around 4th Jan, 2022 - the author decided to delete the repository (for unknown reasons).

In the interest of the community, it has been decided that faker.js will continue to be maintained here and all help in its development will be appreciated

Coming Soon !

Faker Cloud

Coming Soon !

Usage

Browser

<script src="faker.js" type="text/javascript"></script>
<script>
  var randomName = faker.name.findName(); // Caitlyn Kerluke
  var randomEmail = faker.internet.email(); // [email protected]
  var randomCard = faker.helpers.createCard(); // random contact card containing many properties
</script>

Node.js

var faker = require("faker");

var randomName = faker.name.findName(); // Rowan Nikolaus
var randomEmail = faker.internet.email(); // [email protected]
var randomCard = faker.helpers.createCard(); // random contact card containing many properties

API Methods

• address
  • zipCode
  • zipCodeByState
  • cityPrefix
  • citySuffix
  • cityName
  • streetName
  • streetAddress
  • streetSuffix
  • streetPrefix
  • secondaryAddress
  • county
  • country
  • countryCode
  • state
  • stateAbbr
  • latitude
  • longitude
  • direction
  • cardinalDirection
  • ordinalDirection
  • nearbyGPSCoordinate
  • timeZone
• animal
  • snake
  • cetacean
  • horse
  • crocodilia
  • insect
  • rabbit
• commerce
  • color
  • department
  • productName
  • price
  • productAdjective
  • productMaterial
  • product
  • productDescription
• company
  • suffixes
  • companyName
  • companySuffix
  • catchPhrase
  • catchPhraseAdjective
  • catchPhraseDescriptor
  • catchPhraseNoun
  • bsAdjective
  • bsBuzz
  • bsNoun
• database
  • column
  • collation
  • engine
• datatype
  • number
  • float
  • datetime
  • string
  • boolean
  • hexaDecimal
  • array
• date
  • future
  • between
  • betweens
  • recent
  • month
  • weekday
• finance
  • account
  • accountName
  • routingNumber
  • amount
  • transactionType
  • currencyCode
  • currencyName
  • currencySymbol
  • bitcoinAddress
  • litecoinAddress
  • creditCardNumber
  • creditCardCVV
  • ethereumAddress
  • transactionDescription
• git
  • branch
  • commitEntry
  • commitMessage
  • commitSha
  • shortSha
• hacker
  • abbreviation
  • adjective
  • ingverb
  • phrase
• helpers
  • randomize
  • slugify
  • replaceSymbolWithNumber
  • replaceSymbols
  • replaceCreditCardSymbols
  • repeatString
  • regexpStyleStringParse
  • shuffle
  • mustache
  • createCard
  • contextualCard
  • userCard
  • createTransaction
• image
  • image
  • avatar
  • imageUrl
  • abstract
  • animals
  • business
  • nightlife
  • fashion
  • people
  • nature
  • sports
  • technics
  • transport
  • dataUri
  • lorempixel
  • unsplash
  • lorempicsum
• internet
  • avatar
  • email
  • exampleEmail
  • userName
  • protocol
  • httpMethod
  • domainName
  • domainSuffix
  • domainWord
  • userAgent
  • color
  • password
• lorem
  • words
  • sentence
  • sentences
  • paragraph
  • paragraphs
  • lines
• mersenne
  • seed_array
• music
  • genre
• name
  • firstName
  • lastName
  • middleName
  • findName
  • jobTitle
  • gender
  • prefix
  • suffix
  • title
  • jobDescriptor
  • jobArea
  • jobType
• phone
  • phoneNumber
  • phoneNumberFormat
  • phoneFormats
• random
  • number
  • float
  • arrayElement
  • arrayElements
  • objectElement
  • boolean
  • words
  • image
  • locale
  • alpha
  • alphaNumeric
  • hexaDecimal
• system
  • fileName
  • commonFileName
  • mimeType
  • commonFileType
  • commonFileExt
  • fileType
  • fileExt
  • directoryPath
  • filePath
  • semver
• time
  • recent
• unique
• vehicle
  • vehicle
  • manufacturer
  • model
  • color
  • bicycle

Faker.fake()

faker.js contains a super useful generator method Faker.fake for combining faker API methods using a mustache string format.

Example:

console.log(
  faker.fake("{{name.lastName}}, {{name.firstName}} {{name.suffix}}")
);
// outputs: "Marks, Dean Sr."

This will interpolate the format string with the value of methods name.lastName(), name.firstName(), and name.suffix()

Localization

As of version v2.0.0 faker.js has support for multiple localities.

The default language locale is set to English.

Setting a new locale is simple:

// sets locale to de
faker.locale = "de";

• de_AT
• de_CH
• en_AU
• en_AU_ocker
• en_BORK
• en_CA
• en_GB
• en_IE
• en_IND
• en_US
• en_ZA
• es_MX
• fr_CA
• fr_CH
• id_ID
• nb_NO
• nl_BE
• pt_BR
• pt_PT
• zh_CN
• zh_TW

Individual Localization Packages

faker.js supports incremental loading of locales.

By default, requiring faker will include all locale data.

In a production environment, you may only want to include the locale data for a specific set of locales.

// loads only de locale
var faker = require("faker/locale/de");

Setting a randomness seed

If you want consistent results, you can set your own seed:

faker.seed(123);

var firstRandom = faker.datatype.number();

// Setting the seed again resets the sequence.
faker.seed(123);

var secondRandom = faker.datatype.number();

console.log(firstRandom === secondRandom);

Tests

npm install .
make test

You can view a code coverage report generated in coverage/lcov-report/index.html.

Building faker.js

faker uses gulp to automate its build process. Each build operation is a separate task which can be run independently.

Browser Bundle

npm run browser

Building JSDocs

JSDOC v3 HTML API documentation

npm run jsdoc

Building ReadMe

The ReadMe.md file for faker.js is automatically generated and should not be modified directly. All updates to ReadMe.md should be performed in ./build/src/docs.md and then the build script should be run.

npm run readme