| 1 | 1,826 | 4,936 | extlib | Support library for Merb |
| 2 | 3,017 | 4,220 | moped | A MongoDB driver for Ruby. |
| 3 | 8,065 | 7,000 | datamapper | Faster, Better, Simpler. |
| 4 | 15,607 | 21,854 | akephalos | Headless Browser for Integration Testing with Capybara |
| 5 | 42,024 | 46,531 | rails_datamapper | Rails Plugin for DataMapper |
| 6 | 54,146 | 94,007 | tiff | Ruby wrapper for libtiff with FFI |
| 7 | 67,888 | 53,031 | mail_builder | MailBuilder is a simple library for building RFC compliant MIME emails. |
| 8 | 68,970 | 46,531 | haml-server | Server for HAML files |
| 9 | 93,261 | 129,210 | testdrive | TestDrive is a simple ruby and jruby compatible automatic test runner. |
| 10 | 121,745 | 94,007 | harbor | Harbor Framework |
| 11 | 130,372 | 129,210 | uninhibited | This rubygem does not have a description or summary. |
| 12 | 133,388 | 74,024 | ttf2eot | Convert TTF fonts to EOT fonts |
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