Free and Open Source Invoicing, Expenses & Time-Tracking
Quba is a viewer for electronic invoices
Free Desktop book-keeping software for small-businesses & freelancers
Kimai is a web-based multi-user time-tracking application
Empower your hosting business with FOSSBilling
Open Source Metering and Usage Based Billing API
An accounting program (not released) and a released invoice program.
Free Invoice & Billing Software for Windows, Linux & Mac
Voltiva - worldwide smart electricity billing: auditable invoice engine, tariff management, OCR import, PDF export (PyQt6)
Take your office and CRM into the cloud!
Timesheet module for dolibarr
Easy to use, modern and reliable POS solution.
Accounting & Best Practice Business Administration System
Accounting system for smaller companies written in GnuCobol.
Linux-Based Billing And Business Application Server For FREE use.
Excel to Tally Import Templates Free 100%
Time-Tracking for companies and teams with up to 250+ users
Free Bootstrap 4 admin/dashboard template
ERP Server
Fullstack open source Invoicing application made with MongoDB
Free & Open Source Invoice App for Freelancers & Small Businesses
Open-source and self-hosted CRM platform based on Laravel 5