E-Invoice Checker

Detect structured e-invoices in PDF and XML files and read typical invoice data locally in your browser. Detection is not formal or tax-law validation.

Analyze an e-invoice locally

Supported formats: PDF and XML. Maximum size: 25 MB.

Your file is processed locally in your browser and is not uploaded.

Ready for a PDF or XML file.

What this tool does

The E-Invoice Checker detects structured electronic invoices in PDF and XML files and reads typical invoice data from them.

It supports XRechnung, ZUGFeRD or Factur-X, EN 16931, and UBL or CII syntax where the identifiers and structure are recognizable.

How to use the tool

  1. Choose a PDF or XML file up to 25 MB, or drop it into the file area.
  2. Review the recognition details, normalized invoice data and the independent local data-consistency checks.
  3. For an embedded invoice XML, you can view the XML or save it as a local file.

Useful applications

  • Check an XRechnung for recognizable UBL or CII structure and typical core data before further processing.
  • Detect ZUGFeRD or Factur-X XML inside a hybrid PDF and inspect the readable profile and invoice information.
  • Distinguish a structured invoice with an unknown profile from a regular PDF without structured invoice data.

Notes and limitations

  • Processing takes place entirely in the browser; the file and extracted invoice data are not sent to the server.
  • The checker recognizes formats and profiles and checks selected data relationships and amounts, but it does not perform complete XSD, Schematron or tax-law compliance validation.
  • MINIMUM and BASIC WL are shown as technical ZUGFeRD or Factur-X profiles and are not automatically classified as a full German e-invoice.
  • Identifiers from the ZUGFeRD 2.x and Factur-X family, including the 2.5.x generation, are considered; a concrete version is shown only when XML or metadata identifies it unambiguously.
  • An EN 16931 identifier from the 2017 edition is not treated as obsolete or invalid on that fact alone.
  • Standards basis last reviewed: August 2026. A static browser implementation does not replace checking against current validators.

Frequently asked questions

What is an e-invoice?

An e-invoice contains structured, machine-readable invoice data and is more than a scanned PDF or a PDF containing only visible text.

Is a regular PDF an e-invoice?

Without embedded or separate structured invoice data, a regular PDF is not a structured e-invoice for this checker.

What is the difference between XRechnung and ZUGFeRD?

XRechnung is typically exchanged as a standalone XML file, while ZUGFeRD or Factur-X can embed structured XML in a PDF/A-3 file.

Is my invoice uploaded?

No, the file is read and analyzed only in your browser.

Is the result a legally valid validation?

No, local data-consistency checks are not legal, tax or EN 16931 compliance validation and do not replace a complete validator.

What does the data-consistency check mean?

It compares independently calculated line, tax, gross and payable amounts with the values declared in the XML. Missing or ambiguous inputs are shown as not checked.

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