Free and Open Source Invoicing, Expenses & Time-Tracking
Empower your hosting business with FOSSBilling
Source code of the recurrent donations platform Liberapay
An open source eCommerce platform
Sell stuff and see what sticks
Book to build a one-person enterprise
Small Laundry and Dry Cleaning Business Application
Free Invoice & Billing Software for Windows & Linux
Ultimate Zero-Budget Revshare Solution for Indie Teams
The Free & Popular AbanteCart Web Software in Complete Virtual Machine
Ecommerce platform focused on selling digital goods
Fullstack open source Invoicing application made with MongoDB
Membership management software
A framework agnostic, multi-gateway payment processing library
A collection of tools that Android developers have to collect
Bitcoin BitcoinCash Litecoin DASH BTC Payment API - PHP Wordpress ASP
Slatwall Commerce is the eCommerce Platform you've always wanted
Zen Cart® is a free full-featured self-hosted e-commerce application
Cryptocurrency Payment Gateway - your payment processor
SmartPOS (Includes->SmartERP distro of Idempiere ERP) is 100% Web
Manage and report sales, purchases and donations from web sites
Feature rich insurance quote & buy system for underwriters and brokers
Two Checkout blesta payment gateway. Implement inline checkout without
Nash Operating System for Modern Ecommerce