DutchPIPE stands for "Dutchman's Persistent Interactive Page Environments". Lennert Stock, who developed DutchPIPE, says it allows developers to make virtual multi-user 'avatar' environments. Each web page becomes an abstracted environment or location where visitors and other items on the page are visualized. This status is retained as visitors move around. A lot of real-time interaction is possible, resulting in persistent interactive page environments. You can use it with existing software (CMS, bulletin boards, etc.) by inserting a single JavaScript in the header of each page. DutchPIPE will then generate an object for each page and each user. DutchPIPE is distributed under a standard MIT-style license.

DutchPIPE uses AJAX and the DOM for the browser, and it works without Java, Flash, plugins, or firewall adjustments. In the latest available version, 0.4.0, an option for using the MDB2 database abstraction layer from PHP's PEAR library was added. DutchPIPE now supports MySQL, MySQLi, PostgreSQL, Oracle, Frontbase, Querysim, Interbase/Firebird, MSSQL, and SQLite. More administrator commands were added. UTF-8 support was debugged.