Free Desktop book-keeping software for small-businesses & freelancers
Kimai is a web-based multi-user time-tracking application
Free Invoice & Billing Software for Windows, Linux & Mac
Time-Tracking for companies and teams with up to 250+ users
Free Bootstrap 4 admin/dashboard template
ERP Server
Small Business Appliance
Fullstack open source Invoicing application made with MongoDB
The Open Source Invoice Management Software