Extension Builder for TYPO3
The standard tool for creating new TYPO3 extensions. Visual editor for Extbase models, repositories and controllers. The starting point for every extension development.
Book a free consultationThe standard tool for creating new TYPO3 extensions. Visual editor for Extbase models, repositories and controllers. The starting point for every extension development. This is where the AI advantage is most evident: AI generates complete extension scaffolds with business logic.
AI-accelerated development: 80% faster
TYPO3 Update & GDPR Audit
We update your TYPO3 installation cost-effectively to the current LTS version - including all extensions, even outdated and unmaintained ones.
All extensions migrated
Including outdated, unmaintained or custom-built extensions.
Fixed-price offer
Transparent costs, no hidden follow-up work.
AI-accelerated
30-50 % cheaper than market rates thanks to AI-powered code analysis.
Zero data loss
Complete data migration with rollback protection.
GDPR audit: We audit your TYPO3 installation for GDPR compliance - cookie consent, tracking, extensions, forms and hosting - and implement all measures cost-effectively.
Gosign is a Hamburg-based digital agency with 25 years of experience in TYPO3 development. We have analysed over 800 TYPO3 extensions and today develop up to 70% faster using AI-assisted methods. Our clients include mid-sized enterprises, universities and public-sector organisations across Germany.
Last updated: February 2026