HexaPDF is a pure Ruby library with an accompanying application for working with PDF files. In short, it allows creating new PDF files, manipulating existing PDF files, merging multiple PDF files into one, extracting meta information, text, images and files from PDF files, securing PDF files by ...

Mailgun's Official Ruby SDK for interacting with the Mailgun API.

Server-Sent Events via Redis

Re:VIEW is a digital publishing system for books and ebooks. It supports InDesign, EPUB and LaTeX.

Re:VIEW is a digital publishing system for books and ebooks. It supports InDesign, EPUB and LaTeX. This gem is experimental version with PEG grammar

XSpear is XSS Scanner on ruby gems

UNIONs in ActiveRecord! Adds proper union and union_all methods to ActiveRecord::Relation.

RSpec driven API testing framework

In showing a long lists, sometimes one would prefer to see the value arranged aligned in columns. Some examples include listing methods of an object or debugger commands. See Examples in the rdoc documentation for examples.

A collection of Rack middleware to support JSON Schema.

Opensearch output plugin for Fluent event collector

This library can be used as a module for `fog` or as standalone provider to use vSphere in applications.

Rebuild your Jekyll site when a file changes with the `--watch` switch.

Grape instrumentation for the OpenTelemetry framework

Stripe webhook integration for Rails applications.

Fast mime detection by extension or content in pure ruby (Uses freedesktop.org.xml shared-mime-info database)

An implementation of the JSON Schema specification. Provides automatic parsing for any given JSON Schema.

A pure Ruby library for event-driven IO

Puppet's accceptance testing harness

Benchmark::Trend will help you estimate the computational complexity of Ruby code by running it on inputs increasing in size, measuring their execution times, and then fitting these observations into a model that best predicts how a given Ruby code will scale as a function of growing workload.