Pledit
Benthic Software: PLEdit v.6.0.0.605
PLEdit allows editing and compiling of PL/SQL code modules (stored procedures.) It is optimized to be quick and resource friendly.
Golden v.6.0.0.642
Golden is an ad-hoc query tool with many strong features. It features close compatibility with SQLPLus' scripting conventions including variable prompting and script parameter passing.
PLTools v.1.0
These scripts, written in Perl, are quite simple in nature.