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๐ŸŽฒ Welcome to RandBox - Powerful JavaScript Random Data Generation Library! Learn More

Randomization Tools

Professional randomization and grouping tools supporting multiple algorithms for different research needs

Simple Randomization
Simple Randomization
Basic random grouping algorithm suitable for most scenarios
Block Randomization
Block Randomization
Ensures balanced allocation within each block, reducing bias
Stratified Randomization
Stratified Randomization
Stratified randomization based on different characteristics, ensuring balance within each stratum

Key Features

Supports seed settings to ensure reproducible results
Automatically saves history to local storage
Supports data export and report generation

Tech Stack

Features

Easily generate various random data to improve development efficiency and test coverage

Basic Data Type Generation

Generate random booleans, characters, numbers, strings, and other basic data types with various customization options and probability settings

Person & Identity Information

Generate random names, ages, birthdays, emails, social security numbers, and other personal information for multiple countries and regions

Financial & Credit Card Data

Generate random credit card numbers, CVVs, expiration dates, currency codes, and other financial data in standard formats

Geographic Location Information

Generate random addresses, cities, countries, coordinates, postal codes, and other geographic data worldwide

Time & Date Generation

Generate random dates, times, timestamps, and other time-related data with multiple formats and custom ranges

Network & Technical Data

Generate random IP addresses, MAC addresses, URLs, domain names, hash values, and other network technical data

Text & Language Content

Generate random paragraphs, sentences, words, syllables, and other text content with multi-language and emoji support

Helper Utility Functions

Provide array selection, shuffling, padding, case conversion, and other practical utility functions to enhance data processing capabilities

Multi-Environment Support

Support browser, Node.js, RequireJS, and other environments with npm, bower, CDN, and various installation methods

Frequently Asked Questions