More about PL/SQL Developer
You can download the installation package 32 MB of this program v220.127.116.116 from this source, sometimes you can find this program by the name PLSQL Developer. This shareware version is created by Allround Automations and has a full version offered for $216. It is in the Software Development category, Databases with .prc, .fnc, .typ, .tps, .pdc formats support. Versions 12.0 and 11.0 are still the most popular ones and can be run on Windows 7/8.1/10. The most popular installers for the software are plsqldev.exe and cosmos_afe.exe. The direct download link of the program is clean to use.