Here are some of the most popular and widely-used Ruby projects, as ranked by activity on RubyForge.
| Project | Description |
|---|---|
| Rails | Full-stack MVC web application framework. |
| RubyGems | The Ruby standard for publishing and managing third-party libraries. |
| RMagick | Interface to the ImageMagick and GraphicsMagick image processing libraries. |
| SQLite-Ruby | A Ruby interface for the SQLite database engine. |
| Mongrel | A small, fast HTTP server for Ruby and JRuby. |
| FreeRIDE | A pure Ruby Integrated Development Environment. |
| Active Support | Utility classes and extensions to the standard library. |
| Action Pack | Web-request routing, handling, and response framework. |
| RSpec | Behaviour Driven Development framework for Ruby. |
| ruby-oci8 | Ruby interface for Oracle using OCI8 API. |
| Typo | A lean weblogging engine powered by Rails. |
| Win32 Utils | Ruby interfaces to various Windows systems and services. |
| Ruby/DBI | Database-independent interface for accessing databases. |
| Action Mailer | Framework for designing email-service layers. |
| Instant Rails | One-stop Rails runtime solution with Ruby, Rails, Apache, and MySQL. |