Open Source Windows Invoice Software

Invoice Ninja is a free and open source invoicing, expenses and time-tracking app built with Laravel and Flutter. It offers a plethora of great features, including custom branded invoice design, recurring invoicing and auto-bill clients, real-time quote creation and custom proposals, expense reporting and so much more! Invoice Ninja is also capable of handling online payments from more than 40 payment gateways, including Stripe, PayPal and WePay. It also accepts payments using credit cards, ACH, Bitcoin and more. Get paid online, organize project workflows with Kanban Boards, and track time online via your Webapp account all with Invoice Ninja.

Kimai is web based software that tracks work time, and classifies it. It tracks time and prints out a summary of your activities on demand. Yearly, monthly, daily, by customer, by project, by action. FETCH THE LATEST DOWNLOAD FROM GITHUB: https://github.com/kimai/kimai/releases Record expenses and print customizable invoices in different formats. For further information visit: - https://www.kimai.org - https://www.kimai.cloud - https://github.com/kimai/kimai

Multiplatform webbased timereporting system. Generic database support (MS SQL, MySQL...). Generate reports on employees, worked hours in projects. Automatically generate invoices based on an hourly fee (by employee). Gant charts for planning resources

OnlineBilling Create and Present Invoices. Manage Teams and Contracts. Frontend for TUTOS to enable EBPP ( Eletronic Bill and Project Presentment) First version is online at http://OnlineBilling.at Manage your daily paperwork, easily create invoices.

This web application is used to manage day to day service related businesses. PHPBounce comes with a multi tiered user system with Admin / Manager / Users, timesheet management, ticketing system, client database, invoice system, credit card processor (google checkout / google wallet). Client portal for your clients to keep track of invoices, tickets, and make payments.

Keeps track of times entry and expenses reports of employees and contractors by projects and accounts, automatically generates invoices with details. You can print weekly time cards and expense reports by employee, project, and account. It allows you to review and approve times & expenses before generating invoices. This application is ideal for who bills their clients by time and material basis, such as IT consultants, Lawyers, CPAs, Government Contractors etc. Full featured demo site: http://tems.sourceforge.net Play with it from your browser to find out if it will fulfill your requirements, before downloading it.