Invoice Master!

InvoicePlane is a self-hosted open source application for managing your quotes, invoices, clients and payments. The application comes with various options, templates and settings to customize your invoicing experience.

BILLmanager is a linux-based control panel for automating client management, invoicing and billing. This software specifically developed for hosting service providers will help you manage and take complete control of various aspects of your business:

Paymo is an online project management application that helps you deliver projects on time and on budget by eliminating bottlenecks through accurate time tracking & reporting.Paymo can help you with task management & collaboration, time tracking, invoicing, estimates & expenses.

Send, track and collect payments quickly. Great for teams, freelancers and service providers. FreshBooks is an easy cloud accounting app for small businesses and freelancers, specifically designed to save you time billing clients. Create professional invoices, capture expenses with ease and effortlessly track time on projects; it’s all here, plus you’ll be ready for tax time.

FrontAccounting is a simple, but powerful, system for the entire ERP chain and covers:

WatchMe is a simple timer program that can be used to time a number of different tasks or events together or indepenedently of each other. You can easily name each timer and track information about what you are timing - a great solution for those who need to track their time for billing, timesheets and more.

Time tracking, project management and invoicing software.

FusionInvoice is an open source invoicing, quotes, and client management application built for freelancers and small businesses who need a simple, yet powerful self-hosted web based invoicing system. FusionInvoice is community driven so ideas/features, help/support and more is all provided by the project developer and various dedicated Fi users.

Revolutionary time tracking, quoting, invoicing and project management software for freelancers that is flexible, beautiful and easy to use.

Billomat Online Invoicing Tool is a perfect choise for every freelancer and small bussiness even for non-accountants. The Billomat service include customer management, quotes, invoices and reminders and what is most important its stress-free and secure!

Full-featured invoice application for SOHO or business users. Current version: 3.1.5