Excel Invoice Template
A real .xlsx invoice with live formulas — change a quantity and it recalculates.
JSON Invoice Generator
Build an invoice and export it as clean JSON — with a JSON Schema to validate it against.
Your invoice
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Exactly what printsQuick Tool Overview
The JSON Invoice Generator builds an invoice in a normal editor and exports it as consistent, typed JSON for APIs and databases — or as EN 16931 model JSON — together with a JSON Schema (draft 2020-12) to validate it against.
- What it does
- Exports an invoice as JSON
- You give it
- An invoice form
- You get back
- Invoice JSON, model JSON or a JSON Schema
- Best for
- APIs, webhooks and databases
About the JSON Invoice Generator
JSON is how invoices travel between web applications: into an API, out of a database, across a webhook. The trouble with invoice JSON is that everyone invents their own shape, and the shapes differ in the places that matter — whether a line total includes tax, whether a discount is a percentage or an amount.
This builds the invoice in a normal editor and writes it as JSON that answers those questions explicitly: every line carries quantity, unit price, discount, tax rate, tax and total; the totals block separates subtotal, taxable amount, tax by rate, shipping, withholding and balance due. Numbers are numbers, dates are ISO 8601, and empty fields are left out rather than sent as empty strings.
It also produces the invoice as EN 16931 model JSON — the semantic model behind European e-invoicing, useful as an intermediate format — and a JSON Schema (draft 2020-12) of the export, so the receiving side can validate what arrives. Everything is generated in your browser.
Key features of the JSON Invoice Generator
Unambiguous amounts
Every line states price, discount, tax rate, tax and total.
Real types
Numbers as numbers, ISO dates, empty fields left out.
JSON Schema included
Validate incoming invoices and generate types.
EN 16931 vocabulary
Model JSON in the business terms of the standard.
Round-trips
The converter and validator read it back.
How to use the JSON Invoice Generator
-
1
Fill in the invoice
Or press Sample for a full example.
-
2
Choose the JSON
Invoice JSON, EN 16931 model JSON, or the JSON Schema.
-
3
Copy or download
Pretty-printed, UTF-8, named after the invoice number.
Frequently asked questions
Not a widely adopted one — EN 16931 defines XML syntaxes only. The model JSON here follows EN 16931’s own business terms, which is the closest there is to a standard vocabulary.
Numbers, rounded to the currency’s decimals. If you need exact decimal arithmetic on the receiving side, parse them into a decimal type rather than floating point.
Validating incoming invoice JSON before it reaches your database, and generating types for TypeScript, Go or Python. It describes the Invoice JSON export exactly.
Yes. The E-Invoice Converter and the Invoice JSON Validator both read it, and the converter turns it into UBL, CII, CSV or a printable invoice.
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