Accounting & Best Practice Business Administration System
Simple Invoicing program for Desktop written in vba and Access
Accounting system for smaller companies written in GnuCobol.
Free Bootstrap 4 admin/dashboard template
Small Business Appliance
Libertya Electronic Invoice
Fullstack open source Invoicing application made with MongoDB
Best software solution for Small, Medium Retail shop Management
Mutasyon is a script can add customer, products, inventory or invoice
Free web-based invoicing primarily for Finnish companies