Headless Chrome/Chromium driver for Capybara

Ruby interface for the zlib compression/decompression library

HTTP server toolkit

URI is a module providing classes to handle Uniform Resource Identifiers

Topological sorting using Tarjan's algorithm

Timeout provides a way to auto-terminate a potentially long-running operation if it hasn't finished in a fixed amount of time.

Pseudo `IO` class from/to `String`.

Interface for secure random number generator

Shim library for Module#ruby2_keywords

REXML is an XML toolkit for Ruby

The type signature language for Ruby

A make-like build utility for Ruby.

Racc is an LALR(1) parser generator. It is written in Ruby itself, and generates ruby programs.

A libyaml wrapper for Ruby

Prism Ruby parser

This class implements a pretty printing algorithm.

Provides a PrettyPrinter for Ruby objects

Provides SSL, TLS and general purpose cryptography.

The Observer pattern provides a simple mechanism for one object to inform a set of interested third-party objects when its state changes.

This library provides functionality to send internet mail via SMTP, the Simple Mail Transfer Protocol.

The abstruct interface for net-* client.

This library provides functionality for retrieving email via POP3, the Post Office Protocol version 3. For details of POP3

Ruby client api for Internet Message Access Protocol

Net::HTTP provides a rich library which can be used to build HTTP user-agents.

An implementation of Matrix and Vector classes

simple logging utility

JSON implementation for Ruby

interactive Ruby

add console capabilities to IO instance

An easy to use but powerful templating system for Ruby