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Custom TYPO3 Extensions!

A major advantage of the TYPO3 open-source project is that it can be extended in any way you like. There are many free extensions available for a wide variety of applications.

Nevertheless, there are often projects with specific requirements for which no suitable extension is yet available. In these cases, we develop custom TYPO3 extensions tailored to your individual needs. With our extensive experience in TYPO3 development, we’ll find the perfect solution for your websites. We place special emphasis on security and maintainability so that you can continue to use the extension for the long term.

Of course, we also offer ongoing support and updates during version upgrades, which we develop and deploy using modern methods such as Git and DDEV.

Our own TYPO3 extensions

Four extensions of our own we maintain permanently and use them ourselves — on this website and at our clients'. They are open source, run on TYPO3 13.4 and 14, and tie you to no vendor.

  • nt_ai — accessibility and content quality with AI
    Rule-based WCAG 2.2 audits with a backend module, AI-generated alt text for images and PDFs, PDF/UA checking, a read-aloud function and a draft accessibility statement. The AI provider is yours to choose, down to a local Ollama. More on nt_ai · Documentation
  • nt_lingua — translation and plain language in the frontend
    Translates page content on click — via DeepL for foreign languages, via a language model for plain and easy language. Translations are cached, so repeat requests cost nothing. More on nt_lingua · Documentation
  • nt_aimark — AI labelling under Article 50 of the AI Act
    Records the AI share of media and texts in the file metadata, reads existing provenance data on upload and labels accessibly in the frontend with the official EU icons. Every status change goes into an audit trail. More on nt_aimark · Documentation
  • nt_search — site search with live preview
    Full-text search across your own pages, with suggestions while you type. You can see it at work right here. To the search

Need something that does not exist yet? That is what this page is for — tell us what you need.

Get started now with your own TYPO3 extension!

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Frequently Asked Questions About TYPO3 Extension Development

  • What is a TYPO3 extension, and what is it used for?

    A TYPO3 extension is a module that adds additional functionality to your CMS—such as custom forms, interfaces to third-party systems, special display options, or custom backend modules. If no off-the-shelf solution meets your needs, we’ll develop a custom extension for you.

  • Do you also develop extensions for existing TYPO3 installations?

    Yes, we develop extensions for both new and existing TYPO3 projects. After a brief analysis of your system environment, we customize the extension so that it integrates seamlessly into your existing setup.

  • How long does it take to develop a custom extension?

    That depends on the scope of functionality. A simple extension with a clearly defined scope can often be implemented in just a few days, while complex systems with third-party integrations may take several weeks. We provide a transparent cost estimate in advance.

  • Will extensions continue to be supported for future versions of TYPO3?

    Yes, we develop extensions according to the latest TYPO3 standards and offer long-term maintenance upon request. When new major TYPO3 releases are available, we check for compatibility and update your extension accordingly.