| 1 | 3,822 | 3,461 | cantor | Fast implementation of finite and complement sets in Ruby |
| 2 | 4,497 | 3,927 | stupidedi | Ruby API for parsing and generating ASC X12 EDI transactions |
| 3 | 36,971 | 41,449 | xmlparsable | Simple declarative XML parsing |
| 4 | 38,978 | 41,449 | piggly | PostgreSQL PL/pgSQL stored procedure code coverage |
| 5 | 129,158 | 103,204 | fr | Examples of immutable data structures and functional programming in Ruby |
| 6 | 136,744 | 103,204 | propr | Property-based testing for Ruby (ala QuickCheck) |
| 7 | 172,394 | 103,204 | forall | Ruby generative property test library (ala QuickCheck) |