rechnungswandler.derechnungswandler.de (Stefan Lausch)
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Related Products
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About
NormAPI is an e-invoicing API for software teams that issue or check German e-invoices in the XRechnung and ZUGFeRD formats.
It has two endpoints. Validation checks an invoice (UBL, CII or ZUGFeRD PDF) against the official KoSIT rule set and returns every finding as JSON, with its rule code, severity and location in the document. Generation turns invoice data sent as JSON into a validated XRechnung (UBL or CII) or ZUGFeRD PDF. Rule-set updates are included: KoSIT publishes a new version roughly every six months, and the version in force is reported with every result. A TypeScript client is available on npm.
The same validation runs in a free browser validator that needs no sign-up and never stores invoice content, and 137 of the 307 rules have a plain-language reference page explaining what they mean and how to fix them.
Validation is free. Generation costs EUR 49 a month for 500 invoices or EUR 149 for 2,500, and an account includes 25 generated invoices a month for free.
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About
rechnungswandler.de is a browser-based e-invoicing tool for freelancers and small businesses, particularly in Germany. It converts invoice data entered in a form or extracted from PDF, Word, Excel and scanned PDF files into XRechnung or ZUGFeRD documents aligned with EN 16931. Users can review extracted fields and download the completed invoice; a viewer also opens and checks received e-invoices. Conversion and viewing run locally in the browser, so invoice files are not uploaded for these operations. Pro features include retaining the original document layout, batch conversion, saved customer details, reusable templates, payment reminders and validation reports. Optional AI assistance can suggest missing fields. Users can create invoices in the web form or adapt existing invoice files without installing desktop software. A free tier with usage limits and paid 24-hour, monthly and annual plans are available.
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Software teams and SaaS vendors that issue or check German e-invoices (XRechnung, ZUGFeRD)
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Audience
Freelancers, tradespeople and small businesses in Germany that need to send or receive e-invoices (XRechnung/ZUGFeRD) without buying accounting software
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Supported
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API
Offers API
Not Supported
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Screenshots and VideosNo images available
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Screenshots and VideosNo images available
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Pricing
€49 per month
Free Version
Supported
Free Trial
Not Supported
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Pricing
€2.99 one-time
Free plan: 5 conversions per day through October 31, 2026; 10 per month from November 1, 2026. The viewer remains free without a stated usage limit. Pro Pass: €2.99 once for 24 hours. Pro: €6.99/month or €59/year; subscriptions renew under their stated terms. Prices include VAT.
Free Version
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationNormAPI
normapi.de
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Company Informationrechnungswandler.de (Stefan Lausch)
Founded: 2026
Germany
rechnungswandler.de
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Categories |
Categories |
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Integrations
DATEV
Not Supported
n8n
Not Supported
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