pgAdmin is an Open Source administration and development GUI for PostgreSQL.
pgAdmin is the most popular and feature rich Open Source administration and development platform for PostgreSQL. There are native builds available for Linux, FreeBSD, Solaris, Mac OSX and Windows. Use it to manage PostgreSQL 7.3 and above running on any platform, as well as derived versions such as Postgres Plus Advanced Server and Greenplum database.
The graphical interface covers anything from writing simple SQL queries to developing complex databases. A new major version is usually released in connection with every major version of PostgreSQL and supports all PostgreSQL features. It includes an SQL editor with syntax highlighting and a graphical query builder, an SQL/batch/shell job scheduling agent, support for Slony-I replication engine, a scripting engine and much more. Connect to any server via TCP/IP or via Unix Domain Sockets on *nix platforms, optionally SSL encrypted.
pgAdmin is available in many languages. It is Free Software released under the PostgreSQL License. The latest version as of 2012-10-26 is 1.16.0