About

XML is for machines. This viewer is for people.

XML Viewer is an independent, unofficial tool that helps people read common Polish electronic documents.

We are not a public authority

The app is not affiliated with Poland’s Ministry of Finance, KSeF, ePUAP, or Social Insurance Institution. It does not confirm a document’s authenticity, electronic signature, or legal effect.

Why process files locally?

Official documents often contain sensitive data. The simplest sensible privacy rule is not to upload them at all.