Invoice Ninja is the open-source invoicing platform for independents. With Zapier, every FormBuilder response flows into Invoice Ninja the moment it's submitted — no code, no exports, no copy-paste.
Free on every plan · No credit card required
What teams automate
Turn form submissions into clients, invoices, and records.
Create clients and invoices in Invoice Ninja from client intake and order forms
Draft invoices in Invoice Ninja using amounts and details from your form fields
Onboard new clients into Invoice Ninja the moment their engagement form is signed off
Field mapping
In Zapier's editor, your form's actual fields appear by name — point each one at a Invoice Ninja field once, and every future response follows the map.
Setup
Most people connect a form to Invoice Ninja in under five minutes.
Create a form or start from 300+ templates — lead capture, intake, surveys, quizzes.
In Settings → API & Zapier, generate a key and copy it once.
In Zapier, pick FormBuilder's "New Form Response" trigger and connect with your key.
Add a Invoice Ninja action, map your fields, turn it on. Done.
Questions
Create a free FormBuilder account, generate an API key in Settings → API & Zapier, then create a Zap in Zapier with FormBuilder's "New Form Response" trigger and a Invoice Ninja action. Every new submission flows to Invoice Ninja automatically.
Yes — Zapier connectivity is included on every FormBuilder plan, including the free plan. Zapier itself offers a free tier for simple two-step Zaps.
No. The connection is fully no-code: pick your form, map its fields to Invoice Ninja in Zapier's editor, and turn the Zap on.
FormBuilder uses instant webhooks (REST hooks), so responses are delivered to Zapier — and on to Invoice Ninja — within seconds of submission.
Yes. Add a Zapier filter on any answer — for example, only submissions where budget exceeds a threshold — or use FormBuilder's conditional logic to shape what gets asked in the first place.
Keep exploring
Build the form once. FormBuilder and Zapier deliver every response to Invoice Ninja — while you do literally anything else.
Start freeUnlimited forms on the free plan · Set up in minutes