Free Desktop book-keeping software for small-businesses & freelancers
Open-source pricing and billing infrastructure
Open Source Metering and Usage Based Billing API
Simple and elegant invoicing solution
Empower your hosting business with FOSSBilling
Open-source, self-hostable personal subscription tracker
Free and Open Source Invoicing, Expenses & Time-Tracking
Linux-Based Billing And Business Application Server For FREE use.
A pure PHP library for reading and writing spreadsheet files
Data science spreadsheet with Python & SQL
Let agents classify your bank transactions
A high-performance algorithmic trading platform
A terminal spreadsheet multitool for discovering and arranging data
AI-driven, local-first quantitative trading platform for research
A nimble options backtesting library for Python
AI-powered platform for quantitative trading
Yahoo! Finance market data downloader
Google Sheets Python API
Full CSS support for JSX without compromises
Quickly obtain real-time data of the funds of interest
Open Source Openbravo POS convert to Commercial Retail ERP and POS
Accounting system for smaller companies written in GnuCobol.
Free Invoice & Billing Software for Windows, Linux & Mac