Firefly III: a personal finances manager
Kimai is a web-based multi-user time-tracking application
Get a grip on your finances
Accounting & Best Practice Business Administration System
Timesheet module for dolibarr
The Free & Popular Akaunting Web Software in Complete Virtual Machine
A basic PHP/MySQL/HTML Billing APP. Meant for developers learning.
Red Cherries Accounting is a web based accounting software solution.
Open-source online accounting software in PHP and MySQL
NotrinosERP Human Resource Management Module
ShelterOps - Animal and Wildlife data management software
Captures time & expense by project and account; generates invoice