Manager is free accounting software for Windows, Mac and Linux.

It features an intuitive and innovative user interface with modules such as cashbook, invoicing, receivables, payables, taxes and comprehensive financial reports.

The desktop edition is free while the cloud edition.

Invoice Ninja is a free, open-source solution for invoicing and billing customers. With Invoice Ninja, you can easily build and send beautiful invoices from any device that has access to the web.

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.

From invoicing to expense tracking to accounting, Akaunting has all the tools you need to manage your money online, for free.

Invoicera is an online billing software which is specifically designed keeping simplicity and online invoicing convenience in mind, while at the same time offering the best of the breed invoicing features.

Painless invoicing with stunning customizable templates.

Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing.

Crater is an open-source app made in Laravel, VueJS & React Native that helps you track expenses, payments & create professional invoices & estimates.

This is a continuation of Manta App, I'm taking care about the maintenance and new features as I need it.

The Online Invoices innovative system enables you to invoice clients fast - track and receive payments online in seconds. Use built-in powerful features to manage subscriptions.

Our invoice Software for Mac and PC is designed to make your life easier with features like custom invoice templates and estimates.

Moxie is a single digital workspace with all the tools needed to start, manage and grow a freelancing business, with a built-in personalized community to help freelancers connect with others, develop and refine their craft and get help from experts.