# Invoice Ninja [](https://travis-ci.org/invoiceninja/invoiceninja) [](https://invoice-ninja.readthedocs.io/en/latest/?badge=latest) ## [Hosted](https://www.invoiceninja.com) | [Self-Hosted](https://www.invoiceninja.org) ### We're on Slack, join us at [slack.invoiceninja.com](http://slack.invoiceninja.com) or if you like [StackOverflow](https://stackoverflow.com/tags/invoice-ninja/) Just make sure to add the `invoice-ninja` tag to your question. #### Note: v5 is now tagged Stable! To upgrade from v4 you need to [install v5](https://invoiceninja.github.io/docs/self-host-installation/) as a separate app and then use the migration tool in the latest version of v4 on Settings > Account Management. All Pro and Enterprise features from the hosted app are included in the open-code. We offer a $30 per year white-label license to remove the Invoice Ninja branding from client facing parts of the app. The self-host zip includes all third party libraries whereas downloading the code from GitHub requires using Composer to install the dependencies. * [Features](https://www.invoiceninja.com/invoicing-features/) * [Videos](https://www.youtube.com/channel/UCXAHcBvhW05PDtWYIq7WDFA/videos) * [User Guide](https://docs.invoiceninja.com/) * [Support Forum](https://www.invoiceninja.com/forums/forum/support/) * [StackOverflow](https://stackoverflow.com/tags/invoice-ninja/) ## Referral Program * Earn 50% of Pro & Enterprise Plans up to 4 years - [Learn more](https://www.invoiceninja.com/referral-program/) ## Mobile App * [iPhone](https://itunes.apple.com/us/app/invoice-ninja/id1435514417?ls=1&mt=8) * [Android](https://play.google.com/store/apps/details?id=com.invoiceninja.flutter) * [Source Code](https://github.com/invoiceninja/flutter-mobile) ## Installation Options * [Ansible](https://github.com/invoiceninja/ansible-installer) * [Self-Host Zip](https://docs.invoiceninja.com/install.html) * [Docker File](https://hub.docker.com/r/invoiceninja/invoiceninja/) * [Cloudron](https://cloudron.io/store/com.invoiceninja.cloudronapp.html) * [Softaculous](https://www.softaculous.com/apps/ecommerce/Invoice_Ninja) * [Lando](https://github.com/invoiceninja/invoiceninja/issues/2880) * [Yunohost](https://github.com/YunoHost-Apps/invoiceninja_ynh) ## Recommended Providers * [Stripe](https://stripe.com/) * [Postmark](https://postmarkapp.com/) ## Development * [API Documentation](https://invoice-ninja.readthedocs.io/en/latest/api.html) * [PHP SDK](https://github.com/invoiceninja/sdk-php) * [Zend Framework](https://github.com/alexz707/InvoiceNinjaModule) * [Custom Module](https://invoice-ninja.readthedocs.io/en/latest/custom_modules.html) | [Watch Video](https://www.youtube.com/watch?v=8jJ-PYuq85k) ## Third Party Modules * [Event Scheduler](https://github.com/cytech/Scheduler-InvoiceNinja) * [Manufacturer Module](https://github.com/dicarlosystems/manufacturer-invoiceninja) * [Point of Sale](https://github.com/dicarlosystems/pointofsale-invoiceninja) * [Invoice Design Import/Export](https://github.com/feyst/invoicedesignexport) > Feel free to email us for help if you're working on a module, we're happy to provide developer support. ## Third Party Tools * [InvoicePlane Import](https://github.com/turbo124/Plane2Ninja) * [Toggl Sync](https://github.com/Matth--/toggl-invoiceninja-sync) * [Shopping Cart](https://github.com/Scifabric/invoiceninjashoppingcart) ## Third Party Developers * [Bold Compass](https://boldcompass.com/customize-invoice-ninja/) ## Contributing All contributors are welcome! For information on how contribute to Invoice Ninja, please see our [contributing guide](CONTRIBUTING.md). ## Credits * [Hillel Coren](https://hillelcoren.com/) * [David Bomba](https://github.com/turbo124) * [All contributors](https://github.com/invoiceninja/invoiceninja/graphs/contributors) **Special thanks to:** * [Troels Liebe Bentsen](https://github.com/tlbdk) * [Jeramy Simpson](https://github.com/JeramyMywork) - [MyWork](https://www.mywork.com.au) * [Sigitas Limontas](https://lt.linkedin.com/in/sigitaslimontas) * [Joshua Dwire](https://github.com/joshuadwire) - [Bold Compass](https://boldcompass.com/) * [Holger Lösken](https://github.com/codedge) - [codedge](http://codedge.de) * [Samuel Laulhau](https://github.com/lalop) - [Lalop](http://lalop.co/) * [Alexander Zamponi](https://github.com/alexz707) * [Matthieu Calie](https://github.com/Matth--) * [Christopher Di Carlo](https://github.com/dicarlosystems) - [Di Carlo Systems Inc.](https://www.dicarlosystems.ca) * [Kristian Feldsam](https://github.com/feldsam) - [FeldHost™](https://www.feldhost.net) * [Suhas Sunil Gaikwad](https://github.com/Suhas-Gaikwad) * [Mike Skaggs](https://github.com/titan-fail) ## License Invoice Ninja is released under the Elastic License 2.0 See [LICENSE](LICENSE) for details.