Skip to content

E-Invoice Converter — UBL, CII, ZUGFeRD, XRechnung & Peppol

Convert e-invoices between formats: XRechnung UBL ↔ CII, ZUGFeRD/Factur-X to XRechnung, XRechnung to ZUGFeRD PDF and Peppol BIS. Free, no upload.

Choose files

or drag and dropXML (XRechnung, UBL, CII) or PDF (ZUGFeRD, Factur-X)

Your files never leave your device — everything runs locally in your browser.

Continue with another tool

How it works

  1. 1

    Upload the e-invoice

    XRechnung in UBL or CII, a Peppol invoice or a ZUGFeRD / Factur-X PDF.

  2. 2

    Choose the target format

    For example UBL ↔ CII, ZUGFeRD → XRechnung, XRechnung → ZUGFeRD PDF or Peppol BIS Billing 3.0.

  3. 3

    Convert and check

    The data is transferred field by field; details the target format additionally requires are flagged.

  4. 4

    Download

    Download the converted file — several files together as a ZIP.

Typical uses

  • A portal or customer requires CII but your software produces UBL — or the other way round.
  • Submit a ZUGFeRD invoice as a pure XRechnung to a German authority.
  • Turn an XRechnung into a readable ZUGFeRD PDF for customers without e-invoicing software.

Tips

  • XRechnung requires some details other profiles don’t (e.g. buyer reference, seller contact) — add them before downloading.
  • To be safe, check the converted file with the e-invoice validator.
  • Peppol BIS and XRechnung are both based on EN 16931, but each adds its own rules.

Lightning Fast

All processing happens instantly in your browser — no server uploads needed.

100% Private

Your files never leave your device. Everything is processed locally.

Free Forever

No sign-up, no watermarks, no file limits. Completely free to use.

98 Languages

Available in 98 languages worldwide.

Frequently Asked Questions

Which conversions are possible?

XRechnung UBL ↔ CII, ZUGFeRD / Factur-X to XRechnung, XRechnung to a ZUGFeRD PDF and conversion to Peppol BIS Billing 3.0.

Is any data lost during conversion?

All fields defined in EN 16931 are transferred. If the target format requires extra details (e.g. a buyer reference for XRechnung), the tool asks for them.

Is the converted invoice valid?

It is generated according to the target format’s rules. For certainty, check it with the e-invoice validator.

Are my files uploaded?

No. Everything is converted locally in your browser.