Laravel Cashier provides an expressive, fluent interface to Stripe
Create Web Based Forms Quickly, With In-built DB, For All Your Teams
A basic PHP/MySQL/HTML Billing APP. Meant for developers learning.
Small Business Appliance
Tool to manage canteen, nursery and events registrations of a school.
its complete accounting system for small scale manufacturing companies
Mutasyon is a script can add customer, products, inventory or invoice
Event Management and Ticket Processing Software
Free web-based invoicing primarily for Finnish companies