The latest articles on DEV Community by Michael Wilke (@michael_wilke_d50aaa15ce1). https://dev.to/michael_wilke_d50aaa15ce1 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3992629%2F54bbf907-0950-49f9-beb9-e7d66330ae40.png https://dev.to/michael_wilke_d50aaa15ce1 en Michael Wilke Fri, 19 Jun 2026 13:05:30 +0000 https://dev.to/michael_wilke_d50aaa15ce1/finisma-3k3j https://dev.to/michael_wilke_d50aaa15ce1/finisma-3k3j <p>finisma is a free web tool for German B2B compliance. It does two things and nothing else:</p> <ol> <li>Convert any PDF invoice into a compliant ZUGFeRD (a.k.a. Factur-X) e-invoice: PDF/A-3 with an embedded EN 16931 XML payload that buyers' accounting systems can read automatically.</li> <li>Verify any ZUGFeRD/Factur-X PDF: structural checks (PDF/A-3, embedded factur-x.xml, AF markers, Factur-X metadata) plus the full parsed invoice in a clean human-readable view.</li> </ol> <p>No signup, no credit card, no integration work. Drop a file in the browser, get the result back.</p> <p>Built for the German E-Rechnungspflicht: every B2B company in Germany has to be able to receive e-invoices since 2025, and has to issue them from 2027 (&gt;€800k revenue) or 2028 (all others).</p> <p>Key features (bullet list for the gallery / "features" field)</p> <ul> <li>PDF → ZUGFeRD in ~30 seconds</li> <li>LLM-based field extraction (you review and correct before commit)</li> <li>EN 16931 validation built in</li> <li>ZUGFeRD/Factur-X viewer with parsed invoice display</li> <li>IBAN cross-check against the original document</li> <li>Uploaded files auto-delete after 5 minutes</li> <li>German servers, ISO 27001-certified data center</li> <li>Free for everyone, no usage caps published</li> </ul> ai