Free invoice generator
Fill in who's billing, who's paying and what for. The totals, discount, tax and amount due are worked out for you, to the cent. No signup.
The free PDF has a small "Made with Platemark" line at the bottom.
Making these every week?
Send the same fields to the API from your billing system, a spreadsheet, n8n, Make or an AI agent and get the PDF back with the totals in JSON. AI agents can call the render_invoice tool on our MCP server. 100 free credits a month, a document is 2.
curl https://platemark.rowhousesoftware.com/v1/documents -H "Authorization: Bearer pm_..." -H "Content-Type: application/json" -d '{
"type": "invoice",
"from": {"name": "Harbor Design Co."},
"to": {"name": "Ledgerline, Inc."},
"items": [{"description": "Website design", "quantity": 24, "unit_price": 65}],
"tax": {"percent": 6}
}' > invoice.pdf