| 1 | 3,783 | 3,260 | cantor | Fast implementation of finite and complement sets in Ruby |
| 2 | 4,434 | 3,953 | stupidedi | Ruby API for parsing and generating ASC X12 EDI transactions |
| 3 | 35,887 | 35,847 | xmlparsable | Simple declarative XML parsing |
| 4 | 38,189 | 81,259 | piggly | PostgreSQL PL/pgSQL stored procedure code coverage |
| 5 | 126,854 | 102,527 | fr | Examples of immutable data structures and functional programming in Ruby |
| 6 | 134,065 | 102,527 | propr | Property-based testing for Ruby (ala QuickCheck) |
| 7 | 169,778 | 67,413 | forall | Ruby generative property test library (ala QuickCheck) |