A Rust library for generating realistic random data of any kind.

Checkout the random-json crate to use this data as a CLI. It let's you choose the data you want with a dropdown dialogue in the terminal, or lets you generate big amounts of data in one go from a JSON schema!

cargo add random-data

use random_data::{DataType, DataGenerator};

let mut generator = DataGenerator::default();

// Generate a random address
let address = DataType::Address.random(&mut generator);
println!("Address: {address}");

// Generate a random name
let name = DataType::FirstName.random(&mut generator);
println!("Name: {name}");

// Generate a random email
let email = DataType::Email.random(&mut generator);
println!("Email: {email}");

// Generate location data
let country = DataType::Country.random(&mut generator);
let coordinates = DataType::LatitudeLongitude.random(&mut generator);
println!("Location: {country} at {coordinates}");

// Generate technical data
let ip = DataType::Ipv4.random(&mut generator);
let mac = DataType::MacAddress.random(&mut generator);
println!("Network: IP {ip} MAC {mac}");

// List all the possible data types
let list = DataType::list_str();
println!("Possible data types: {list:?}");

Some data types have predefined lists of values. You can access these lists:

use random_data::{DataGenerator, DataType};

let mut generator = DataGenerator::default();

// Check if a data type has a predefined list
if let Some(values) = DataType::Month.values() {
    println!("Available months: {:?}", values);
}

// Formula-based types return None
assert!(DataType::Address.values().is_none());

// Generate and verify
let month = DataType::Month.random(&mut generator);
let all_months = DataType::Month.values().unwrap();
assert!(all_months.contains(&month.as_ref()));

The library includes region-specific generators:

use random_data::{DataGenerator, DataType};

let mut generator = DataGenerator::default();

// UK-specific data
let uk_address = DataType::UkAddress.random(&mut generator);
let uk_postcode = DataType::UkPostCode.random(&mut generator);
let uk_phone = DataType::UkPhoneNumber.random(&mut generator);

// French-specific data
let french_address = DataType::FrenchAddress.random(&mut generator);
let french_postcode = DataType::FrenchPostCode.random(&mut generator);
let french_phone = DataType::FrenchPhoneNumber.random(&mut generator);

• Internet: EmailDomain, HttpStatusCode, MimeType, OpenSourceApp, TopLevelDomain, UserAgent, Ipv4, Ipv6, MacAddress
• Companies: CarBrand, CompanyName, Job
• Computer science: FileExtension, ProgrammingLanguage, ProgrammingParadigm, EditorColourTheme, ItDomain, DirPath, FileName, FilePath, Semver, SemverStable, SemverUnstable
• Famous people: Painter, Writer, Composer, Mathematician, Physician, Biologist, ComputerScientist, Philosopher
• Colours: HexColour, HslaColour, HslColour, RgbaColour, RgbColour, ColourName
• Geography: Latitude, LatitudeLongitude, Longitude, FrenchRiver, Country, City, Continent, CountryCode, Street, River, UkRiver
• Addresses: Address, FrenchAddress, FrenchPostCode, UkAddress, UkPostCode, FrenchStreet, FrenchRoadType, FrenchCounty, UsStateAbbr, UsState, UsRoads, UsRoadTypes, UkCountyCode, UkPostcodeArea, UkCounty, UkCity, UkRoadType, UkStreet, StreetNumber
• Science: ChemicalElement, MathematicalFunction
• Names: FirstName, FrenchFirstName, FrenchLastName, LastName, NameTitle
• Arts: LiteraryGenre, ArchitecturalStyle, MusicalGenre, MusicalInstrument
• Time: DaysOfWeek, Month, DaysOfWeekAbbr, MonthsAbbr, TimeZone, TimeUnit, AmPm
• Animals: Animal, Mammal, Bird, Insect, MythologicalCreature, Fish, Amphibian, Reptile, Mollusc, AnimalType
• Education: SchoolSubject, AcademicDiscipline, DegreesTitle, University, HistoricalBattle, Sport
• Primitives: AlphanumericCapitalChar, AlphanumericChar, Boolean, CapitalChar, Digit, LowerChar
• Personal data: CreditCard, Email, FrenchEmail, FrenchLicencePlate, FrenchPhoneNumber, NhsNumber, Password, PhoneNumber, SecuriteSociale, UkLicencePlate, UkPhoneNumber
• ISBNs: RandomIsbn10, RandomIsbn13
• Banks & finance: Bic, Iban, Isin, CurrencyName, CurrencySymbol, CurrencyCode
• Text: Word, Sentence, Paragraph
• Sky & space: Constellation, Planet, Star, Galaxy, CloudType

Most of the data used in this crate was generated by ChatGPT (and thus licensed under CC0).