| 1 | 3,793 | 3,616 | cantor | Fast implementation of finite and complement sets in Ruby |
| 2 | 4,453 | 4,329 | stupidedi | Ruby API for parsing and generating ASC X12 EDI transactions |
| 3 | 36,391 | 23,414 | xmlparsable | Simple declarative XML parsing |
| 4 | 38,476 | 77,791 | piggly | PostgreSQL PL/pgSQL stored procedure code coverage |
| 5 | 127,872 | 136,043 | fr | Examples of immutable data structures and functional programming in Ruby |
| 6 | 135,016 | 101,409 | propr | Property-based testing for Ruby (ala QuickCheck) |
| 7 | 170,495 | 101,409 | forall | Ruby generative property test library (ala QuickCheck) |