jaro_winkler is an implementation of Jaro-Winkler \ distance algorithm which is written in C extension and will fallback to pure \ Ruby version in platforms other than MRI/KRI like JRuby or Rubinius. Both of \ C and Ruby implementation support any kind of string encoding, such as \ UTF-8, EUC-JP, Big5, etc.

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.

Dynamic options.

Rugged is a Ruby bindings to the libgit2 linkable C Git library. This is for testing and using the libgit2 library in a language that is awesome.

Identify email addresses or domains names that belong to colleges or universities. Help automate the process of approving or rejecting academic discounts.

A Ruby StatsD client (https://github.com/etsy/statsd)

Download an entire website from the Wayback Machine. Wayback Machine by Internet Archive (archive.org) is an awesome tool to view any website at any point of time but lacks an export feature. Wayback Machine Downloader brings exactly this.

The main entrypoint for using Sorbet

Export i18n translations and use them on JavaScript.

ruby-prof is a fast code profiler for Ruby. It is a C extension and therefore is many times faster than the standard Ruby profiler. It supports both flat and graph profiles. For each method, graph profiles show how long the method ran, which methods called it and which methods it called. RubyProf generate both text and html and can output it to standard out or to a file.

Generates attr_accessors that encrypt and decrypt attributes transparently

Enables to set jobs to be run in specified time (using CRON notation or natural language)

When a Cucumber step fails, it is useful to create a screenshot image and HTML file of the current page

BinData is a declarative way to read and write binary file formats. This means the programmer specifies *what* the format of the binary data is, and BinData works out *how* to read and write data in this format. It is an easier ( and more readable ) alternative to ruby's #pack and #unpack methods.

Elasticsearch output plugin for Fluent event collector

Optimist is a commandline option parser for Ruby that just gets out of your way. One line of code per option is all you need to write. For that, you get a nice automatically-generated help page, robust option parsing, command subcompletion, and sensible defaults for everything you don't specify.

An unobtrusive ruby authentication library based on ActiveRecord.

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

Build command-suite CLI apps that are awesome. Bootstrap your app, add commands, options and documentation while maintaining a well-tested idiomatic command-line app

Ancestry allows the records of a ActiveRecord model to be organized in a tree structure, using the materialized path pattern. It exposes the standard relations (ancestors, parent, root, children, siblings, descendants) and allows them to be fetched in a single query. Additional features include named scopes, integrity checking, integrity restoration, arrangement of (sub)tree into hashes and different strategies for dealing with orphaned records.