generate random numbers from 1 to 200

The Random Sources library provides genuine random numbers, generated by processes fundamentally governed by inherent uncertainty instead of some pseudo-random number algorithm. It uses http services from different online providers.

Generate random strings which match a Regular expression

This gem is a great way to generate random strings in Ruby

Library to generate random strings

Random Token Generator for Rails

Generates a valid RANDOM US city, state, zipcode and coordinate pair.

A Ruby wrapper for the RandomUser API.

Fetch random users from randomuser.me

You can generate many random users for your ruby app. (this gem use http://randomuser.me/ service)

Generates an array of random-walk data within user-specified limits and of an arbitrary length for use in testing.

Fetches random word from http://randomword.setgetgo.com/ API

A RUBY CLI GEM for generating random words by length with description and other details.

Get random furry pr0n from e621.net

Retrieves a (psuedo)random comment from a (psuedo)random video using the Wordnik API to get a random word, search YouTube for that word, get a random search result with comments, and then get a random comment from that result. Ugly, but it works. Usually.

use as active record relation method

Randoq is a gem library of quotes.

Random data generator with type composition

Set of helper methods to run randominze test in rspec

Don't you hate it when you have to generate specific quantities of random numbers from a particular range while writing ruby? Look no further.