Invoice Ninja
by hillelcoren · WordPress.org page · Website
Invoice Ninja has 100+ active installs on WordPress.org and 2,550 downloads all time. We have tracked it since September 4, 2026; download trends appear after 30 days of data. The last update was on May 11, 2026, tested up to WordPress 6.8.8.
Invoice Ninja at a glance
Is Invoice Ninja well maintained?
Features
The feature list from the plugin's own readme on WordPress.org, trimmed to the essentials.
- Import products from Invoice Ninja as custom pages in WordPress
- Export WordPress/WooCommerce customers as clients in Invoice Ninja
- Enable Single sign-on (SSO) for the Client Portal
- Integrated shopping cart functionality
Invoice Ninja reviews and ratings
2 reviews on WordPress.org, with the most recent ones as their authors posted them.
2 reviews
- 5★
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- 4★
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- 3★
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- 1★
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Worked until it broke my site
Just spent 4 hours troubleshooting why my customers were getting an error message when completing purchases. A plugin update to the unused InvoiceNinja plugin on 9 May caused all customer checkout attempts to fail with a generic payment error. The plugin hooks into WooCommerce's order creation process and, following the update, threw an uncaught exception when attempting to read a null object, silently killing the order creation flow before any order or payment could be processed. Deactivating the plugin immediately resolved the issue.
daisycutter -
Good start
This is looking good, however there are a few things missing that won't allow me to actually use it: - Recurring intervals (it's the only kind of service I offer) - Pricing tiers (separate items would work but are inconvenient and bloaty?) Will keep an eye on this though. Invoice Ninja is fantastic! Thanks for putting your time into making a connection here.
Pineapple is DISGUSTING on Pizza
Details
WordPress plugin for Invoice Ninja
The full description, screenshots and every review live on the WordPress.org page.
- Version
- 1.0.13
- Last updated
- May 11, 2026
- First published
- Oct 6, 2024
- Requires WordPress
- –
- Tested up to
- 6.8.8
- Requires PHP
- –
- Pricing
- Free on WordPress.org
Invoice Ninja FAQ
What does Invoice Ninja do?
According to its WordPress.org readme, Invoice Ninja offers Import products from Invoice Ninja as custom pages in WordPress, Export WordPress/WooCommerce customers as clients in Invoice Ninja, Enable Single sign-on (SSO) for the Client Portal and Integrated shopping cart functionality.
How many active installs does Invoice Ninja have?
WordPress.org reports 100+ active installs for Invoice Ninja as of September 7, 2026.
Is Invoice Ninja still maintained?
Yes. The last release was on May 11, 2026 and it is tested up to WordPress 6.8.8.
Is Invoice Ninja free?
Invoice Ninja is free to install from WordPress.org. Many plugins also sell a paid version or add-ons.