PLEdit: a PL/SQL editor, one of several Oracle tools. [Commercial]

Open source utility, analogous to javadoc, that generates PL/SQL code documentation in HTML. [Open source, LGPL]

PL/SQL trace tool, table exporter, session manager, shared pool profiler, and other tools. [Commercial]

A light weight and robust tool for Oracle database development. It includes a text editor, SQL console and utilities. [Freeware]

Allows the user to tidy and format PL-SQL code in a batch file or DOS prompt. [Freeware]

An interactive query tool for Oracle developers. This is a SQL Worksheet replacement with a host of additional commands. SQLGrid provides a way to execute arbitrary SQL or PL/SQL code and also investigate how it is execute and its resource consumption...

A tool that enables users of an Oracle database to easily create and optimize their SQL code for application development, administration, or ad-hoc reporting. [Commercial]