CHARP is a Web Application framework for the development of applications with modern development techniques. At its core, CHARP allows you to call stored procedures inside your PostgreSQL database through a simple HTTP POST request, and receive the results in JSON format. This is the heart of a collection of tools that we have gathered for the development of our web projects, which has allowed us to code as little as possible inside the web server, and let us concentrate on the processes that fetch or alter information in our databases, and the user interaction code for the browser.

The main philosophy of CHARP is to be simple and slim. The tools we depend on do not have a huge complexity, they can be configured and developed on with any text editor, with no compilation stage necessary, and they are all readily available in your typical Linux distribution. And of course, they are all Free Software, although you can also develop on Windows using Cygwin and so on. MacOS X remains untested, but it is very probable that a MacOS X installation of CHARP would be successful.