Invoice Ninja vs PayPal Invoicing
Side-by-side from the Top 11 ranking of The 11 Best Invoicing & Billing Software for Small Business. Last verified June 20, 2026.
The short answer
Invoice Ninja ranks higher on Top 11 (#7 vs #9) for Small business owners and freelancers sending invoices and tracking payments. A powerful, customizable open-source option for those who want to self-host.
At a glance
| Invoice Ninja | PayPal Invoicing | |
|---|---|---|
| Top 11 rank | #7 / The 11 Best Invoicing & Billing Software for Small Business | #9 / The 11 Best Invoicing & Billing Software for Small Business |
| Score (out of 9.4) | 8 | 7.6 |
| Best for | Open-source and self-hosted option | Fast and familiar for PayPal users |
| Pricing | $ ($0 to $14/mo) | $ ($0 with processing fees) |
| HQ | Remote | San Jose, USA |
| Founded | 2014 | 1998 |
Invoice Ninja
A powerful, customizable open-source option for those who want to self-host.
www.invoiceninja.comSee full entry in The 11 Best Invoicing & Billing Software for Small Business
PayPal Invoicing
A simple, trusted invoicing tool for businesses that primarily use PayPal.
www.paypal.com/us/business/invoicingSee full entry in The 11 Best Invoicing & Billing Software for Small Business
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.