jptables is a simple PHP application to search and edit data in jptables.db SQLite database used by J-Pilot. The underlying datamodel for jptables is described here: SQL Datamodel For J-Pilot.
The application is small: half kLines of PHP code
416 1762 20690 jpedit.php
103 418 3353 jpsearch.php
12 52 449 jptop.php
531 2232 24492 total
More details can be found here: Accessing J-Pilot Data From Mobile And Web.