Google Sheets Python API
A high-performance algorithmic trading platform
AI-driven, local-first quantitative trading platform for research
A terminal spreadsheet multitool for discovering and arranging data
Data science spreadsheet with Python & SQL
A python wrapper for Alpha Vantage API for financial data.
A nimble options backtesting library for Python
Accounting & Best Practice Business Administration System
Yahoo! Finance market data downloader
AI-powered platform for quantitative trading
Accounting system for smaller companies written in GnuCobol.
Source code of the recurrent donations platform Liberapay
Let agents classify your bank transactions
Windows 11 only — includes 16 sections with text and visual reports.
A simple forecasting package
Export data to Tally
Professional financial tools: 16 sections with text and visual reports
Free Open Source Accounting and Club Systems
Open-source business management software
Free Invoice & Billing Software for Windows & Linux
Simple Invoicing program for Desktop written in vba and Access
An Invoicing program for Auto Shops written in vba and MS-Access.
Fast, modular open source CRM for growing businesses
Ultimate Zero-Budget Revshare Solution for Indie Teams
Demo Invoicing APP for Veterinarian Medical Office