Free and Open Source Invoicing, Expenses & Time-Tracking
Kimai is a web-based multi-user time-tracking application
Fullstack open source Invoicing application made with MongoDB
A super simple way to create & send invoices, receive payments online
Web based Cost Estimation, Material Takeoff and Reconciliation Tool
Create and print simple invoices
FreelancerBooks -Project Management for Freelancers and Agencies
PHP Stock Inventory Management System - POS