KLInvoice is one of my side projects and completely Open-Source. It’s released under the MIT License.
Here are some of the main features:
- Built using Java, Spring, AngularJS
- PDF generation using LaTeX
- Integrated PDF Viewer (with Mozilla PDF.js)
- Templates for Email & Invoices
- Recurring invoices (*)
- File Attachments (*)
- Multi-language/multi-user/multi-company support
- Tax rates and payment terms (*)
- Reminder emails (*)
- Partial payments (*)
- REST API
- Social Login
* This software is currently under heavy development. I appreciate every feedback to make it better.
Checkout my GitHub repository for more informations and for download the source files. https://github.com/KardungLa/klinvoice
During the next couple of weeks, I’m planning to get a hosted cloud version running. It will be completely free of charge for Freelancers and Small Businesses.