Compare
Kaleta vs Joomla.
Joomla is a mature open-source CMS with multilingual support and access control in the core. Kaleta takes a narrower path: a visual builder, a design system and Claude, for business websites. Here is how they compare.
Choose Kaleta if.
you build business websites: services, references, team, news and enquiries
you want Claude to build and edit the site, with drafts and previews
you want one tested system instead of add-ons and subscriptions
you want the site on your own hosting, free and open source
Stay with Joomla if.
- you rely on Joomla extensions or a template framework you know well
- you need user registration, access levels and member content
- your site is a portal or community rather than a business website
- your team already runs and updates Joomla sites
Side by side
Feature by feature.
Kaleta
Joomla + extensions
Licence and cost
Kaleta
GPL-2.0-or-later, free. No paid tiers or paid add-ons.
Joomla
GPL-2.0-or-later, free. Many templates and extensions are paid.
Visual builder
Kaleta
Built in: 36 elements, 39 ready-made sections, styles per screen size and hover.
Joomla
Articles in the core editor; visual page building through extensions such as YOOtheme Pro or SP Page Builder.
Building with AI
Kaleta
Claude connects over MCP with the permissions of your account: drafts, signed previews, publish when you say so.
Joomla
Through extensions; varies by extension.
Design system
Kaleta
Colours, fonts and spacing as tokens, shared classes and components, W3C Design Tokens export.
Joomla
Template-based with template styles; design tokens depend on the template or framework.
Forms, SEO, redirects, statistics
Kaleta
Built in: forms with an enquiry inbox, sitemap, structured data, llms.txt, 301 redirects, cookie-free statistics.
Joomla
Core has SEO-friendly URLs, a redirect component and contact forms; richer forms and statistics come from extensions.
Languages
Kaleta
Language versions built in: around forty site languages, visitor texts translated into eight.
Joomla
Multilingual in core, with many language packs.
Backups and updates
Kaleta
Automatic database backups (also off-server), signed updates, security releases install on their own, automatic rollback.
Joomla
One-click core updates in the admin; extensions update separately.
Page weight
Kaleta
Clean HTML, CSS only for the elements on the page, no JavaScript libraries – a starter page is about 40 kB.
Joomla
Depends on the template and extensions.
Extending it
Kaleta
Nine built-in extensions and a read-only JSON API. No third-party plugins by design.
Joomla
Thousands of extensions in the Joomla Extensions Directory.
E-commerce, memberships, courses
Kaleta
Not included.
Joomla
Through extensions (for example HikaShop or VirtueMart).
Hosting
Kaleta
Any hosting with PHP 8.4+ and MySQL 8 / MariaDB 10.6+; install over FTP in about ten minutes.
Joomla
Runs on common PHP hosting.
Community
Kaleta
New (2026) and small; open development on GitHub.
Joomla
Established, volunteer-run community with user groups worldwide.
Checked in September 2026 against Kaleta 1.2. Other systems change quickly – check the current state of the tools you use.
Where Joomla is stronger
Users, access and languages in the core.
Joomla handles registered users, access levels and multilingual content without extra plugins, and its extension directory covers portals, directories and communities.
Where Kaleta is stronger
Visual building and Claude.
Kaleta builds every page, header and footer in one visual builder on a design system, keeps features built in and tested together, and lets Claude build and edit the site as drafts you approve.
Moving over
Moving from Joomla.
Kaleta has no importer for Joomla. For a business website the practical route is a rebuild: connect Claude, give it the addresses of your old pages and it builds each one as a draft from Kaleta sections, in your design system. You check the preview, publish, and add 301 redirects from the old addresses so links and rankings carry over.
FAQ
Questions from Joomla users.
Does Kaleta have user accounts for visitors?
No. Kaleta is built for business websites; accounts are for the people who run the site, with roles and permissions.
Can I keep my addresses when I move?
Yes. Set the new pages to the same addresses where you can, and add 301 redirects for the rest in Redirects – or ask Claude to create them.
Is Kaleta free like Joomla?
Yes. Kaleta is open source under GPL-2.0-or-later, with no paid tiers or paid extensions.
More comparisons
Compare Kaleta with similar systems.
Try Kaleta next to your Joomla site.
Install it on a test subdomain and compare – it takes about ten minutes.