Barby creates barcodes.

Squib is a Ruby DSL for prototyping card games

Data analysis and OSINT framework for Twitter

Ruby/CairoGObject is a Ruby binding of cairo-gobject.

Access and manipulate the scalable, free icons of game-icons.net

A unicode aware PDF writing library that uses the ruby bindings to various c libraries ( like cairo, pango, poppler and rsvg ) to do the heavy lifting.

A library that can generate graph easily, by cairo (rcairo) and Ruby.

Extension for converting Cairo::ImageSurface to/from CArray

Canvas drawing support for Compass with Cairo backend(s).

Neural networks in Ruby and CUDA.

Ruby library providing image rendering described by dynamic templates

Adds the convert method to Emojidex::Collection and Emojidex::Emoji, which\ allows you to convert an emoji collection or a single emoji to the specified\ image format.

Ruby/GdkPixbuf2 is a Ruby binding of GdkPixbuf-2.x.

GTK FFI bindings for Ruby

The Ruby Regex Debugger. Put your regex in the top pane, and your match text in the bottom pane. Kang will highlight the match text that matches and show you any match groups you have created down the right hand side.

Generate syntax diagram(aka railroad diagram) from EBNF specification

Manqod is a desktop application for small companies to organize their data on an interface customised for them by themselves

This is a command line based application to use Casio's Memopri (MEP-F10). MEP-F10 is a sticker printer and it is very cheap around 5000 yen ($50). There are no nice same kinds of device which runs on Linux environemnt. You can print stickers using this software.

Apply simple edits to images

A ruby widget toolkit for everyone and every computer