RTor is a comprehensive Ruby library for Tor. Included are grammars for Tor's protocols and various useful utilities.

RubyBreaker is a dynamic type documentation/checking tool for Ruby. It dynamically instruments code, monitors objects during execution, performs dynamic type checking, and generates type documentation based on the profiled information. RubyBreaker helps Ruby programs "break" out of obscurities and convolutions by auto-documenting type information.

JSONPath support for Ruby

RuTTY is a DSH (distributed / dancer's shell) written in Ruby. It's used to run commands on multiple remote servers at once, based on a tagging system. Also allows for multiple SCP-style uploads.

Advanced search string

A toolkit to work with the SQL language. Incluses a SQL parser, tree manipulations, and tools for testing and monitoring

The philosophy of Silicon is to provide minimalistic middleware between your model and API client.

Boolean logic parsing and evaluation engine

A strict templating library for ruby

Soroban makes it easy to extract and execute formulas from Excel spreadsheets. It rewrites Excel formulas as Ruby expressions, and allows you to bind named variables to spreadsheet cells to easily manipulate inputs and capture outputs.

Spells is a library for parsing the text on Magic the Gathering cards

Simple spreadsheet implementation

SQLiterate is a SQL parser.

SQL manipulation without a db connection

Command-line binary and mini-DSL for configuring the commands an SSH key-authenticated remote SSH connection is allowed to run.

Generate Ruby code for the full Steam Language. Useful for Steam clients

Stretto is a Ruby implementation of JFugue, an open source library originally written in Java by David Koelle for programming MIDI.

SweetTea is a new language that can be compiled into javascript.

A Treetop parser for alias files

Flexible language for defining grades calculations.