| 1 | 3,810 | 3,603 | cantor | Fast implementation of finite and complement sets in Ruby |
| 2 | 4,466 | 4,227 | stupidedi | Ruby API for parsing and generating ASC X12 EDI transactions |
| 3 | 36,714 | 46,026 | xmlparsable | Simple declarative XML parsing |
| 4 | 38,773 | 103,058 | piggly | PostgreSQL PL/pgSQL stored procedure code coverage |
| 5 | 128,415 | 46,026 | fr | Examples of immutable data structures and functional programming in Ruby |
| 6 | 135,973 | 103,058 | propr | Property-based testing for Ruby (ala QuickCheck) |
| 7 | 171,335 | 103,058 | forall | Ruby generative property test library (ala QuickCheck) |