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DotClear is a blog package distributed as free software under the GNU GPL (General Public License). It’s not very well known outside the French speaking world, probably because only basic documentation is available in English.

DotClear is a PHP and MySQL application, and its features include:

* use of the W3C standards, including XHTML 1.0 Strict;
* friendly URLs;
* RSS and Atom feeds;
* full Unicode support;
* multiple user levels;
* support of XML/RPC clients, to edit the weblog from third party applications.

DotClear was started in 2002 by Olivier Meunier, and its latest stable branches are DotClear 1.2.8 and DotClear 2.x. DotClear 2, unlike its predecessor, requires PHP 5 and supports MySQL, PostgreSQL and SQLite databases.