Open and validate ZUGFeRD for free

Open ZUGFeRD and Factur-X invoices, extract embedded XML and check EN 16931 rules — locally in your browser.

Use the tool

Full tool — runs in your browser. No sign-up required.

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Full guide: Create and validate e-invoices for free

Validate embedded XML in ZUGFeRD/Factur-X PDF/A-3 hybrid invoices.

Load your file into Tentaco Zugferd Validator. Standard processing runs locally in your browser — contents are not sent to Tentaco servers for that path.

The primary button opens the matching studio mode so you can start without an account. Built for quick one-off tasks on desktop and mobile.

Why use this tool?

PDF XML extract
Batch validation
Fix suggestions

How it works

Open Zugferd Validator via the studio button (direct mode).
Select or drop your file.
Adjust options and review the preview or output.
Download the result and re-run if you need another pass.

Common use cases

Use Zugferd Validator before emailing or uploading a PDF to a portal
Fix a PDF quickly on a Chromebook or shared computer
Prepare documents without installing Acrobat

Tips & comparisons

1Compared with desktop apps, Zugferd Validator starts instantly and needs no updates.
2Many cloud uploaders keep copies; this mode keeps processing local.
3Combine Zugferd Validator with related Tentaco tools in the same studio or hub.

Privacy & data handling

File transfer: No. Processing: local in the browser. External APIs: none. Temporary storage: memory. Permanent storage: only after you download.

LocalThis tool processes data locally in your browser. Tentaco does not receive your file contents for this mode.

File transfer: No — files stay on your device
Processing: Locally in the browser
External APIs: None for this tool
Temporary storage: Browser memory only while the tab is open
Permanent storage: Only if you download or save the result yourself

Open and validate ZUGFeRD for free

Open E-Invoice Studio

Frequently asked questions

What inputs does Zugferd Validator accept?

Zugferd Validator accepts the file types listed in the tool UI. Convert unsupported formats first or use a related Tentaco tool.

Are files uploaded?

No. Zugferd Validator processes the standard mode locally in your browser; Tentaco does not receive your input for that path.

Is there a file size limit?

Practical limits depend on your device and browser memory. Very large files may be slow or fail in Zugferd Validator — shrink the file and retry.

How do I download the result?

After processing, Zugferd Validator shows a download action. Save locally; Tentaco does not auto-archive to a cloud library.

Does it work on mobile?

Yes, Zugferd Validator runs in mobile browsers. For very large media, desktop is often more comfortable.

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