Document tools
Every tool on this site, and what each one actually does today. Tools marked “in development” are not yet available — they are listed so you know what is coming, not to pad this page.
Viewers
Validators
Validation is layered: XML well-formedness, syntax detection, XML Schema, the EN 16931 business rules, then country and profile rules. Each layer reports separately, and a layer that has not run says so.
UBL Validator
Schema and EN 16931 rule validation for UBL 2.1 invoices.
Factur-X Validator
Inspect a Factur-X PDF and validate the invoice embedded in it.
France e-invoice validator
Official French business rules for UBL, CII and Factur-X invoices.
myDATA Validator
Official AADE myDATA v2.0.2 schema validation for Greek documents.
Reference
UBL 2.1
How a UBL 2.1 invoice document is structured.
UN/CEFACT CII
How a Cross Industry Invoice is structured, and what D22B means.
EN 16931
The European semantic model behind UBL and CII e-invoices.
Factur-X
The hybrid PDF/A-3 invoice format used in France and Germany.
France
Formats, specifications and local validation for French e-invoicing.
Greece
myDATA structures, goods movement and local validation for Greek documents.