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Open Source

Open. MIT.

Core, kits and extensions are licensed under the MIT licence – your own kits and extensions may use any licence.

Open Source

MIT licence. Free to use.

KLXM Studio – Copyright © 2026 KLXM Crossmedia GmbH and contributors – is licensed under the MIT licence. Using, adapting, running and redistributing it is allowed, including commercially and in client projects.

Your own kits and extensions may use any licence. Bundled third-party software keeps its own licence (THIRD-PARTY-NOTICES.md).

Source code on GitHub (opens in a new tab)Installation guide (opens in a new tab)

System requirements

PHP
≥ 8.4 (FPM), 8.5 supported
Database
SQLite (default, one file per website) or MySQL/MariaDB per website; pdo_sqlite always required, SQLite ≥ 3.35 (search) – fine on Debian 12/13 and Ubuntu 22.04/24.04, AlmaLinux/RHEL 8/9 ship an SQLite that is too old
Webserver
Apache or nginx with HTTPS – no .htaccess
Hosting
e.g. Plesk; only public/ is in the web root
Optional
Ollama or an AI provider, ffmpeg + whisper.cpp, cron
Licence
MIT
Version
1.0.0

As of version 1.0.0 (README and developer manual).

Licence

What the MIT licence means for agencies and operators

  • Using, adapting, running and redistributing it is allowed – including commercially and in client projects.
  • Your own kits and extensions may use any licence, including a proprietary one.
  • The only condition: if you redistribute the code, include the copyright and licence notice (LICENSE, COPYRIGHT).
  • Bundled third-party software keeps its own licence – see THIRD-PARTY-NOTICES.md.
  • The software is provided without warranty (“as is”).

Summary, not legal advice. Full text: opensource.org/licenses/MIT.

Third-party software

Bundled components

Bundled third-party software keeps its licence – MIT, BSD, Apache-2.0, ISC and SIL OFL; the full list is in THIRD-PARTY-NOTICES.md and in the admin under Manual & help → Licences.

  • MIT

    Most PHP packages, Phosphor Icons, parts of Editor.js and MapLibre.

  • Apache-2.0

    Editor.js and Mozilla PDF.js.

  • BSD / ISC

    MapLibre GL JS, sabre/dav (CalDAV/CardDAV) and smaller libraries.

  • SIL Open Font License 1.1

    Lato (admin) and all kit fonts.

  • GPL-2.0 with font exception

    Liberation fonts in the PDF viewer (PDF.js) – shipped as separate font files.

Contact

Talk to KLXM Crossmedia.

A demo, use in your agency or technical questions – we answer personally.

Get in touchCall us
KLXM Crossmedia GmbH
Am Schürmannshütt 40g
47441 Moers
Germany