Why free
Free, with no paid tiers.
Kaleta is open source under the GNU GPL, version 2 or later. There is no premium edition, no paid plugins, no licence keys and no account with us – the download is the whole system.
Everything in one package.
The builder, design system, forms and enquiries, newsletter, pop-ups, language versions and the Claude connection are all in the same download. Extensions are switched on, not bought.
Your site, your server.
Kaleta runs on ordinary PHP hosting. You can export the whole site at any time, and nothing depends on a service run by us.
Open code.
The GPL lets you use Kaleta for any site, read the code, change it and share it. The source is public on GitHub.
Kaleta is developed in the open on GitHub by its author, with contributions from the community. You can support Kaleta's development with a one-time contribution on Buy Me a Coffee – a coffee goes a long way. Supporters get no extra features: every site gets the same system.
This site runs on Kaleta itself and is updated with Kaleta releases.
Costs
What you still pay for.
- Hosting and a domain – any PHP hosting with MySQL or MariaDB.
- An SMTP service, if you send newsletters – Brevo, Amazon SES, Mailgun or your own mailbox; many have a free tier for small lists. Pick the service in Settings → Mail and Kaleta fills in the server and port for Brevo, Mailgun, Amazon SES, Postmark, SendGrid and others. If you already use a mailing service, Kaleta can pass subscribers to it instead.
- A Claude plan or AI provider, if you edit with Claude or use the AI assistant.
Honestly
What free does not mean.
- No warranty – as the GPL says, Kaleta comes without a warranty. Keep backups, and install updates.
- Community support – questions and bugs go to GitHub; there is no paid support line.
- Legal texts are a starting point – the privacy policy and imprint templates are a suggestion; you are responsible for your own legal obligations.
Help Kaleta grow.
Report bugs, suggest features, translate or contribute code – everything happens on GitHub.