alice-invoice provides a simple interface (in Ruby) to download invoices and corresponding digital signatures from the German ISP Alice.
AqBanking provides a middle layer between the program and the various Online Banking libraries (e.g. AqHBCI, OpenHBCI etc).
Armory is an advanced open source program for managing multiple bitcoin wallets with a high level of security available. The software uses wallet encryption, can print permanent paper backups of your wallets, and store your bitcoins on an offline computer for maximum security from online threats. Read more
Atem is a command line tool that converts MetaStock financial binary data to CSV.
BananaPos is Point of Sale software. It features a user/group, department/site, interface/interface authority, login/login type station/station group hierarchy. This allows for sites, departments within sites, groups within departments, stations and/or users within groups, Station access/login by keyboard code, barcode, magstripe, or smart card etc.
Bitcoin is a peer-to-peer network based digital currency system that is completely decentralized, without the need for a central server or trusted parties.
Bitcoin-Qt is an open source Graphical User Interface around the core Bitcoin protocol that is run by the majority of nodes on the network. Read more
BitWrk is a Bitcoin-friendly, anonymous marketplace for computing power.
CountYourEuro! collects data on EuroCoins all over Europe, to analyze the flow of Euros. CYE is a client through which you can enter coin data.
cournol is a GTK+ based application for analyzing an absolute supply monopoly. It calculates the maximum profit of a supply monopoly and draws the respective graphs.
E/AS Automation Solutions
E/AS Automation Solutions (E/AS) is a client-server platform for business or personal automation solutions. It uses CLIP technology, such as the CLIP language, the CODB object database, and the COBRA application server.
earn is a C console program to calculate the month earning of an employer you can insert your monthly earning how many hours and how many minutes you've done each day and it will calculate all automagically.
Electrum is a lightweight, easy to use, open source Bitcoin client. It protects users from losing coins in a backup mistake or computer failure, because the wallet can be recovered by entering a secret phrase. Read more
Equidae is a financial application for horse owners. It handles user management with profile and qualification functions, lesson appointment time sheets, horse vaccinations, and management of training, feeding, and veterinary visits.
FacturaLUX is a ERP and CRM software for GNU/Linux. It uses Qt 3.0 with QtDesigner and QTLinguist, and PostgreSQL as its database manager. It is desgined for business solutions for the small to medium enterprise market (SME) in distribution and service.
FreeCheck is a free check printing utility. You can use it to print your own checks on blank check stock, available at office supply stores and various places around the web. To do this right, you also need magnetic / MICR toner to print the MICR line at the bottom of the check.
FullFIX is a library for parsing Financial Information eXchange (FIX) messages. The main goal of the project is to produce the fastest software solution for FIX protocol.
Gambit is a library of game theory software and tools for the construction and analysis of finite extensive and normal form games. Gambit is designed to be portable across platforms.
(commercial) Gestix is a Modular Integrated Package for Business Management / Point of Sale, covering the Sales Orders, Invoicing, Works, Purchase Orders, Purchasing, Inventory, Warehousing, Serial Number Tracking, Bill Collecting and Financial areas.
Gocoin is a full bitcoin client solution (node + wallet) written in Go language (golang). Read more
Infobright Community Edition (ICE)
Designed for analytics, ICE is easy to use, simple to manage and ideal for data volumes from 500GB to 30 TB and more. ICE combines a column-oriented database with a unique Knowledge Grid architecture to eliminate the complexity of data warehousing.
jGnash2QIF is a program that converts a jGnash XML file into a QIF file.
Makecheque is a tool (written in Ruby) to print bank cheques, either using bank-supplied stationey, or blank check paper (in conjuntion with a MICR font and perhaps special laser toner). It is intended to be used as part of an interactive bookkeeping system.
Martin Walenta's Trading Toolkit
Martin Walenta's Trading Toolkit provides strategies for increasing and reducing positions, increasing of trailing stop loss limits, investigating and comparing position sizing strategies, success ranking of trading sessions and trade exits.
mbank-cli provides a rudimentary command line interface to the mBank online banking system.
mcalc is a loan amortization calculator.
Open Transactions is a solid, easy-to-use, financial crypto and digital cash library, including an API, server, and test client.
Picalo is an open source application that helps fraud investigators and auditors search through data sets for anomalies, trends, and other information.
Plata is an application that makes easy to calculate currency exchanges between any 2 countries in the world. It uses the xmethods SOAP service to do so. It was built using the KDE 3 framework.
QExchange is a Qt4 currency exchange calculator. The main features are daily and historical currency conversion, a chart view of historical rates trends, and exchange rates network updates from the European Central Bank.
RAPID is an analysis program for investment decisions. Read more
Taler is a free software electronic payment system providing anonymity for customers. Payments can in principle be made in any
existing currency, or a bank can be launched to support new currencies. Merchants are not anonymous, and--due to income-transparency--the state can perform effective tax audits.
(commercial) TradeFlow for Linux allows wealth managers to minimize trading risks, reduce operating costs and enhance efficiency across a number of post-trade activities, including trade capture, data enrichment and management, confirmation and affirmation, as well as settlement and clearing.
Transaction Server is a distributed "Transaction Server" helps in invoking any of the business objects, irrespective of their location. Business objects can be any method in a 'C' program or it can be a method of a C++ object.
Unofficial HAMP Loan Modification Calculator
The Unofficial HAMP Loan Modification Calculator guesses at how loan modifications will work out under disclosed specs from the US Treasury.