Symphony. An open source CMS.

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XSLT-powered open source content management system

Elegant

Approaches content management with the underlying goals of simplicity and openness, so you can build anything.

Click to learn more about the Symphony approach.
Flexible

Gives designers and developers complete control over data structures, URL schemas, and every bit of markup.

Click to see how Symphony empowers you to do what you do best.
Powerful

Puts the Web's most exciting APIs at your fingertips with an easy-to-use, XML-centric data engine.

Click to read up on Symphony's flexible data engine.
Extensible

Provides a lean, flexible core complemented by a rapidly growing extensions library.

Click to explore our library of extensions and other add-ons.

Who's Using Symphony?

The system is relied upon in high-delivery environments by some of the world's most recognisable brands.

19 December 2011 A new way to discover extensions: It's clear that there hasn't been enough extension-loving recently, so here we introduce both an XML schema to document your extension metadata, and a handy aggregator website that watches Symphony extensions on GitHub to let you know what's what.

Four levels of commercial-grade support, available 24/7 from a team of Symphony specialists in UK, Australia, and the US. Learn more.