Wisepdf uses the shell utility wkhtmltopdf to serve a PDF file to a user from HTML. In other words, rather than dealing with a PDF generation DSL of some sort, you simply write an HTML view as you would normally, and let pdf take care of the hard stuff.

Wolverine provides a simple way to run server-side redis scripts from a rails app

WP2TXT extracts text and category data from Wikipedia dump files (encoded in XML / compressed with Bzip2), removing MediaWiki markup and other metadata.

XCFit is a full stack BDD framework in Xcode for iOS and macOS apps with Swift using Cucumberish and Fitnesse. Native Xcode implementation, No Appium, No Calabash, No Ruby or any other non iOS language. Checkout XCFIT POD

xcprofiler parses activity logs generated by Xcode and reports build time of Swift projects

xctracker parses activity logs generated by Xcode and reports build time of Swift projects

Calculates the XIRR of a cashflow (the internal rate of return for transactions on arbitrary dates, like Excel's XIRR) using a safeguarded-Newton solver, with an optional native C build. Also includes time-value-of-money, bond, depreciation, rate-conversion, and performance-metric functions.

Serialize to hypermedia. HAL, JSON-API, etc.

Yet Another RSpec JUnit Formatter (for Hudson/Jenkins)

Abracadabra: The gem that swaps out text with a fully-compliant Rails form in one click using JQuery and rails.js.

Handles globalize translations in ActiveAdmin 0.6.3 and Rails 3.2.x

With ActiveAdmin-Select2 you are able to chose Select2 as a drop-down entry option in Forms and Filters

Wrapper over Rails Event Store with conventions and transparent Rails integration

Monitor your jobs

Backported from Rails 5.0 to use with 4.x versions

This gem logs where ActiveRecord actually loads record

It is the library to reconnect automatically when ActiveRecord is disconnected from MySQL.

Integrate PostgreSQL's enumerated types with the Rails enum feature

Adds support for postgres arrays to ActiveRecord

This gem enables your model to query the database using the earthdistance extension. This should be much faster than using trigonometry functions over standart indexs.