Free and Online Accounting Software

A self-hosted open source application for managing your invoices, clients and payments.

Time tracking you can host anywhere. Full export support in multiple formats and easily extensible.

Kimai v1 open source time-tracking - please switch to Kimai v2

Gauzy™ - Open-Source Business Management Platform (ERP/CRM/HRM) focused on Fairness and Transparency

Online Invoice Management in Ruby On Rails.

Simple and elegant invoicing solution.

Repository for the LedgerSMB project -- web app for accounting & ERP

Invoicing for freelancers & small businesses

An Open Sourced Invoice System developed for anyone who needs to generate out an invoice and manage clients

Fab-Manager is the FabLab management solution. It provides a comprehensive, web-based, open-source tool to simplify your administrative tasks and your marker's projects.

Wystawiaj faktury za darmo i bez ograniczeń

📝 PDF invoice generator

C# assembly for creating and reading ZUGFeRD invoices

Desktop invoicing app built with electron. Create Quotes and Invoices. Download PDF or Email directly to your customers.

Sell-Your-Saas is an Open Source solution to automate and sell any application as a SaaS service

Official XSD from the Government of Angola for use in SAF-T AO

BillingTrack quote, invoice, workorder management

Invoicing is a lightweight Invoicing and Payments system for WordPress. It can be used by freelancers to manage their Invoices or by 3rd party Themes and Plugins as their payment system. GeoDirectory currently uses Invoicing as its payment system

🧾💰App for issuing invoices, track expenses and managing clients for all the sole traders of New Zealand. That are registered for GST. And can host a Rails app. And are able to configure Google OAuth.

CRM for small IT Firms

This plugin enables generating invoices in Sylius platform application.

⚖️ AFIP invoice integration for django.

Magento 2 procedure to automatically invoice orders in a given status.

Easy and lean invoicing for small businesses, consultants and freelancers, created using AppGini

Electron application based on React, React Router, Webpack, React Hot Loader and Material-ui@v1 for invocing/inventory with GST enabled

Pure-python ZUGFeRD implementation

Reckoning.io Invoicing SaaS