Many different blog systems gathered together

A partial list of notable weblog software follows:

User-hosted

Software packages installed by weblog authors to run on their own systems:

• RatBlog – small weblog host and providerhttp://rockrat.co.uk/

Free/Libre/Open-Source software

These software packages are offered under an Open Source Software license. Therefore they are free for everyone to use. Also, commercial support contracts are often available.

• Apache Roller (Java-based)
• b2evolution (PHP/MySQL)
• bBlog (PHP/MySQL)
• Beta-Blogger (PHP/MySQL or text files)
• BlogCN
• BlogEngine.NET (C#/ASP.NET)
• blojsom (Java-based)
• blosxom (Perl)
• boastMachine (PHP/MySQL)
• Collablog (PHP/MySQL)
• dasBlog (C#/ASP.NET)
• Diarios Online (Windows)
• Dotclear (PHP/MySQL)
• Drupal (PHP/MySQL,PostgreSQL)
• Elgg (Linux, Apache, MySQL, and PHP)
• FlatPress (PHP/Flat Files)
• Geeklog (PHP/MySQL)
• Habari (PHP/MySQL)
• Horizon Blogging Software (PHP/MySQL,Sqlite,PostgreSQL)
• LifeType (PHP/MySQL)
• Livejournal (Perl) (Also available, developer hosted)
• Mephisto (Ruby on Rails)
• Nanoblogger – small weblog engine for the UNIX command line http://nanoblogger.sourceforge.net/
• Nucleus CMS (PHP)
• pebble (Java)
• Pivotlog (PHP)
• PyBlosxom (Python)
• Serendipity (PHP/MySQL,PostgreSQL,SQLite)
• Simplelog (Ruby on Rails)
• SimplePHPBlog (PHP/Flat Files)
• Slash (Perl)
• Subtext (C#/ASP.NET)
• Textpattern (PHP/MySQL)
• Typo (Ruby on Rails)
• WordPress (PHP/MySQL) – also offered in developer-hosted form as WordPress.com
• vee (Bourne Shell, Vi/Flat files) – simple command line blogging tool http://www.0×743.com/vee

Proprietary software

These packages are under a proprietary license. They may require the purchase of a license key to use them. The specific licensing terms vary but some are free for personal or non-commercial use.

• Community Server (also offered in developer-hosted form as CommunityServer.com)
• entity CMS
• ExpressionEngine (formerly pMachine)
• MacJournal
• Movable Type (also offered in developer-hosted form as TypePad)
• Radio UserLand
• Traction TeamPage
• Windows Live Writer – also offered in developer-hosted form as Windows Live Spaces
• WinJournal

Unknown license

• Battle Blog
• Blogsphere

Developer-hosted

Software services operated by the developer, requiring no software installation for the weblog author:

• Battle Blog
• Blog.com
• Blogger
• Blogging Systems
• Blogging Systems
• Blue Kaffee
• DeadJournal
• GreatestJournal
• LiveJournal
• Multiply.com
• MySpace
• NooBlog.pl
• Open Diary
• TypePad
• Typo
• Windows Live Spaces
• Xanga
• Vox
• WordPress.com