MessagePack is a binary-based efficient object serialization library. It enables to exchange structured objects between many languages like JSON. But unlike JSON, it is very fast and small.

memoize methods invocation

A plain-Ruby implementation of GraphQL.

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

A set of classes for parsing CSS in Ruby.

Inspired by ctemplate, Mustache is a framework-agnostic way to render logic-free views. As ctemplates says, "It emphasizes separating logic from presentation: it is impossible to embed application logic in this template language. Think of Mustache as a replacement for your views. Instead of views consisting of ERB or HAML with random helpers and arbitrary logic, your views are broken into two parts: a Ruby class and an HTML template.

A framework for building reusable, testable & encapsulated view components in Ruby on Rails.

Opal is a Ruby to JavaScript compiler. It is source-to-source, making it fast as a runtime. Opal includes a compiler (which can be run in any browser), a corelib and runtime implementation. The corelib/runtime is also very small.

Go faster, off the Rails

Google libphonenumber library was taken as a basis for this gem. Gem uses its data file for validations and number formatting.

Power Assert shows each value of variables and method calls in the expression. It is useful for testing, providing which value wasn't correct when the condition is not satisfied.

Provides a C-optimized method for determining if a string is blank

A suite of instrumentation metric primitivesthat can be exposed through a web services interface.

Rack middleware to measure production code usage (LOC runtime usage)

Go faster, off the Rails

Powerful tool to avoid N+1 DB or HTTP queries

ActiveRecord connection adapter for PostGIS. It is based on the stock PostgreSQL adapter, and adds built-in support for the spatial extensions provided by PostGIS. It uses the RGeo library to represent spatial data in Ruby.

Efficient, immutable, thread-safe collection classes for Ruby

Oga is an XML/HTML parser written in Ruby.

Airbrake Ruby is a plain Ruby notifier for Airbrake (https://airbrake.io), the leading exception reporting service. Airbrake Ruby provides minimalist API that enables the ability to send any Ruby exception to the Airbrake dashboard. The library is extremely lightweight and it perfectly suits plain Ruby applications. For apps that are built with Rails, Sinatra or any other Rack-compliant web framework we offer the airbrake gem (https://github.com/airbrake/airbrake). It has additional features such as reporting of any unhandled exceptions automatically, integrations with Resque, Sidekiq, Delayed Job and many more.