This provides interfaces to various passive DNS databases to do the query and to normalize the responses. The query tool also allows for recursive queries, using an SQLite3 database to keep state.

A Ruby library and command-line tool for inspecting and modifying ELF executables and libraries.

A Rails engine providing a web dashboard for monitoring and managing one or multiple PgBouncer connection poolers.

A Postgres advisory lock client

Phone number parsing, validation and formatting

Synchronize between Cucumber and Pivotal Tracker

ppl is a command-line address book using vCard & git for storage and synchronisation

Prawn/QRCode simplifies the generation and rendering of QRCodes in Prawn PDF documents.

A lightweight layer above Thor to quickly create beautiful command-line interfaces.

Pivotal Tracker Command Line Interface

Qo is a querying library for Ruby pattern matching

Finding time-consuming database queries for ActiveRecord-based Rails Apps

A web interface for the que queue

Rack-Jekyll transforms your Jekyll app into a Rack application.

A simple way to configure a healthcheck route for a Rails application

rails-latex is a renderer for rails which allows tex files with erb to be turned into an inline pdf.

Carbon Five Rails application generator

RequestLocals gives you per-request global storage in Rails

With caching, selector for IPv4/IPv6, and many other features

Tracks jobs performed, failed, and the duration of the last 100 jobs for each job type.