Joomla extensions, built the way good software is built
Joomla! is an award-winning open-source content management system (CMS), which enables you to build web sites and powerful online applications. Multizone have been building web based content management solutions with Joomla! since 2005. We publish updates, releases and longer-form pieces here when we have something material to say.
How we build
Continuous integration. Automated testing across Joomla and PHP versions. Joomla Extensions Directory compliance built in rather than retrofitted. Security work runs alongside feature work, not after it.
How the subscription works
All six extensions are released under the GPL. The 30-day free trial unlocks the paid features automatically. After the trial, a £49 or £99 annual subscription key keeps the paid features on; the free baseline carries on either way.
Six extensions
Automatic Meta Description for site SEO. Cassiopeia Themer for template visual control. Verified Forms for spam-resistant submissions. Payments via Stripe for Joomla for e-commerce. AI Assisted Article Generator for content streams. Subscriptions Manager for the keys.

Cassiopeia is the default template that ships with Joomla 4 and 5. Cassiopeia Themer is the Multizone extension that gives it a brand identity you can set from the Joomla admin, and then a set of commercial features on top. Recent releases have made the identity side considerably more complete, so today's post covers what it does now, what we have shipped, what the paid tiers add, and when each fits.
Read more: Cassiopeia Themer - Brand your Joomla site to match your identity, visually
The news category description above sets out who we are and what is in the directory. This first post takes a closer look at how Multizone builds Joomla extensions, what the 30-day free trial does, and what the subscription pays for. The weeks that follow take each extension on its own.
Read more: How we build Joomla extensions, and how the subscription works in practice