phpPgAdmin is a fully functional PHP-based administration package for PostgreSQL. It has all the basic functionality you need to completely administer a PosgreSQL server and/or database, including the ability to administer views, sequences, stored procedures, and triggers. Features include the ability to create and drop databases; create, copy, drop, and alter tables/views/sequences/functions/triggers; edit and add fields (to the extent Postgres allows); execute any SQL-statement, even batch-queries; manage keys on fields; create and read dumps of database and tables; and administer one single database, multiple servers, and Postgres users/groups.
Uhura is a Web console for databases. It works with MySQL, PostgreSQL, and FirebirdSQL. It presents trees that let you browse databases, tables, columns, constraints, triggers, views, and procs. It has panels for history and fragments. Its editor features autocompletion and autoindenting. It is easy to install.
Collectables Database is a simple, easy-to-use application for using the control and data management capabilities of Postgres to catalog various kinds of collections. It delivers content in a format that is easy to use and manipulate within the convenience of a modern Web browser. The initial focus of the application is on cataloging a comic book collection. Collectables Database can run from a hosted Web server or on the user's local machine through the use of a virtual appliance.