About Clean-Core.io
A free, community-powered Modernization Platform for SAP architects and developers.
The Mission
Clean-Core.io exists to solve one of the hardest problems in the SAP ecosystem: transforming decades of custom ABAP code into cloud-compliant architectures. Instead of replacing the expert, we hand them something to start from — a first draft aimed at Clean Core, with the evidence behind it, for review and approval. We do not claim it saves you days: what takes time is the decisions, and those stay with you.
Built by Felix Frenzel
Felix Frenzel
Founder — Clean-Core.io
Felix is personally affected by an S/4HANA transformation and built Clean-Core.io out of that first-hand experience. What started as a tool to solve his own challenges quickly grew into a free resource for the entire SAP community — helping others navigate Clean Core compliance, legacy code modernization, and the complexity of S/4HANA migrations.
Technology & Trust
European Hosting
Hosting (Cloud Run) and the database (Firestore) run in the GCP europe-west1 (Belgium) region. The sign-in, Firebase Authentication, is a Google service not tied to a region. The Gemini API and the mail provider are separate subprocessors, listed in the privacy policy.
Workspace Isolation
Your code is stored in your secure project workspace and can be permanently deleted at any time.
GDPR-aligned
Art. 17 GDPR erasure rights via the settings dashboard; EU-hosted storage.
Community-Driven
Free to use, free forever. Built for the community, by someone who needed it.
Ready to modernize your ABAP landscape?
Join the community and start transforming legacy code into clean, cloud-ready architectures.
Get Started for Free