| 1 | 1,815 | 5,560 | extlib | Support library for Merb |
| 2 | 2,993 | 5,130 | moped | A MongoDB driver for Ruby. |
| 3 | 8,061 | 6,257 | datamapper | Faster, Better, Simpler. |
| 4 | 15,547 | 14,659 | akephalos | Headless Browser for Integration Testing with Capybara |
| 5 | 41,888 | 73,575 | rails_datamapper | Rails Plugin for DataMapper |
| 6 | 53,948 | 110,100 | tiff | Ruby wrapper for libtiff with FFI |
| 7 | 67,714 | 110,100 | mail_builder | MailBuilder is a simple library for building RFC compliant MIME emails. |
| 8 | 68,809 | 60,348 | haml-server | Server for HAML files |
| 9 | 93,024 | 92,849 | testdrive | TestDrive is a simple ruby and jruby compatible automatic test runner. |
| 10 | 121,595 | 110,100 | harbor | Harbor Framework |
| 11 | 129,989 | 132,857 | uninhibited | This rubygem does not have a description or summary. |
| 12 | 133,209 | 132,857 | ttf2eot | Convert TTF fonts to EOT fonts |
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