Invoice Ninja review
A powerful, customizable open-source option for those who want to self-host.
Top 11 rank
#7 of 11
Score
8/9.4
Pricing
$ ($0 to $14/mo)
HQ
Remote
Verdict
Invoice Ninja is the best open-source invoicing platform, giving users complete control over their data and system by allowing them to host it on their own servers.
What customers praise
It supports over 45 payment gateways, far more than most competitors, providing maximum flexibility for accepting payments globally.
What customers criticise
The user interface is less polished and more utilitarian than top-ranked competitors, and the self-hosting option requires technical expertise to set up and maintain.
Best for
Tech-savvy freelancers and businesses that want a highly customizable, open-source invoicing solution with the option for self-hosting.
At a glance
- Integrations: Stripe, PayPal, Zapier, Authorize.net
- Regions served: Global
- Typical onboarding: 0 days
- Free tier: yes
Red flags
Public risk signals as of June 2026: none. No material public risk signals as of 2026-06-20. See the full red-flag report.
Alternatives
See alternatives to Invoice Ninja, or compare against the next-ranked entry: Invoice Ninja vs Harvest.
Source: Top 11 The 11 Best Invoicing & Billing Software for Small Business, verified June 20, 2026 — no paid placement.