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Cotonti Siena

Cotonti is a powerful open-source web development framework and content manager with a focus on security, speed and flexibility. Why choose Cotonti?

Cotonti combines the flexibility of a web framework with the rapid deployability and featureset of a content management system. Despite having features such as user accounts, content creation, file management and community tools out of the box, it can be easily extended using modules or plugins. Cotonti is powered by its own template engine which is both fast and easy to learn, even if you are not an experienced programmer.

Read more about Cotonti's Benefits...

Major features

  • Open source, community driven
  • Secure and reliable
  • Fast and lightweight
  • Modular and extensible
  • Layout separated from logic
  • Fast and easy template engine
  • Internationalized

Releases and latest Changes

You can find latest releases and its change lists on dedicated GitHub page.


To install Cotonti you need the following server software pre-installed:

  • WWW Server (Apache, nginx, etc)
  • PHP 5.4.0 or higher
  • MySQL 5.0.7 or higher

Server configuration

You MUST ensure that PHP has been compiled with support for:

  • GD
  • Hash
  • Mbstring
  • MySQL
  • PCRE
  • PDO and PDO_MySQL
  • Sessions
  • Zlib in order to successfully run Cotonti.

Optional components

If you want support for SEF (Search Engine Friendly) URLs, you'll need mod_rewrite and the ability to use local .htaccess files.


For step-by-step instructions see Install.txt file.


Cotonti is only as good as it is because of many individual community members and users that take the time to report issues and request new features, write the documentation, post feedback in the Cotonti community forums. To be one of our developer community, become a Contributor.

Be sure you are familiar with Cotonti technical concepts, coding guidelines and style we use.

When you're ready to contribute the bugfix or a new feature you can issue a Pull Request with related commit(s) from your GitHub account.


Copyright (c) 2008-2022, Cotonti Team

Copyright (c) 2001-2008, Neocrome

All rights reserved.


Cotonti Siena is free software; you can redistribute it and/or modify it under the terms of the 3-clause BSD License (or New-BSD) as published by Regents of the University of California.

BSD 3-clause License