Free Desktop book-keeping software for small-businesses & freelancers
Open Source Point of Sale is a web based point of sale application
Firefly III: a personal finances manager
Simple and elegant invoicing solution
Online Accounting Software
A lightweight, self-hosted personal finance app
A high-performance algorithmic trading platform
Currency data API
A terminal spreadsheet multitool for discovering and arranging data
Open-source pricing and billing infrastructure
Quickly obtain real-time data of the funds of interest
A nimble options backtesting library for Python
Kimai is a web-based multi-user time-tracking application
Personal and small-business finance manager
The free and Open Source productivity suite
Free Invoice & Billing Software for Windows, Linux & Mac
Chromis POS, the new evolving face for your point of sale needs
An integrated word processor and spreadsheet for RISC OS and Windows
Open-source business management software
SME Accounting package, General Ledger, Debtors, Creditors, Stock
Budget management
Finances personnelles assistées par ordinateur.
Monitors balances of your cryptocurrency addresses
Cclite Alternative Currency Software