Read, check and pay e-invoices, right in your browser.

einvoiceTools offers tools for e-invoices as one-file apps: every app is a single HTML file that you open in your browser, without installation, without a server and without an account. The invoice is read in your browser and is not uploaded.

Open the free viewer

See the areas

In brief

You can try every app here right away. The eInvoice Viewer and the validators for KoSIT and Mustang are free; all other apps run here as a demo and are available in the shop.

Areas

What would you like to do?

01 · Viewer6 apps

Read e-invoices

XRechnung, ZUGFeRD, Peppol, KSeF and FatturaPA as a readable document, with add-ons for field details, printing and EXTENDED.

All apps in this area Viewer →

02 · Inbound8 apps

Check incoming invoices

Does the invoice fit your business, are identifiers and bank details right, does the PDF say the same as the data?

All apps in this area Inbound →

03 · Outbound3 apps

Secure your own invoices

Read, validate and explain your invoice before sending it, before the customer rejects it.

All apps in this area Outbound →

04 · Validation12 apps

Validate and understand

Validate with the official KoSIT validator, with Mustang or with VAMPIRE, and read every finding in plain words.

All apps in this area Validation →

POST /wp-json/einvoice-api/v1/validate/kosit
Content-Type application/xml

{
“valid”: false,
“errors”: 2,
“warnings”: 0
}

05 · REST API

Validate from your software

Validate invoices and confirm identifiers right from your software. The reference data is free.

To the API overview →

One-File-App

How a one-file app works

1Open
with a double click in the browser
2Drop the invoice
XML or PDF
3Read the result
the file stays with you

Your data

Why one-file apps

No upload
The invoice is read in the browser. Only when you validate with KoSIT or Mustang does it go to the validation service of this website for that check, and it is not stored there.
One file
Every app is one HTML file. You pass it on by e-mail, put it on a USB stick or on a network drive.
No installation
No Java, no server, no administrator rights. A current browser is enough.
Try first, then buy
Every paid app runs here as a demo. It always opens the sample invoices, and your own invoices up to a daily limit.

Branded edition

All one-file apps are also available in your colours and with your logo.

For tax advisers, software companies and businesses that want to give their clients, customers or their own team a tool in their own corporate design.

About the branded edition

Send a request

Start with the free viewer.

Drop an e-invoice into the eInvoice Viewer and see what is really in it.

Go to the eInvoice Viewer