Open Source Financial Software
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Financial Software
Browse free open source Financial software and projects for Linux and BSD below. Use the toggles on the left to filter open source Financial software by OS, license, language, programming language, and project status.
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Apache OpenOffice
The free and Open Source productivity suite
Free alternative for Office productivity tools: Apache OpenOffice - formerly known as OpenOffice.org - is an open-source office productivity software suite containing word processor, spreadsheet, presentation, graphics, formula editor, and database management applications. OpenOffice is available in many languages, works on all common computers, stores data in ODF - the international open standard format - and is able to read and write files in other formats, included the format used by the most common office suite packages. OpenOffice is also able to export files in PDF format. OpenOffice has supported extensions, in a similar manner to Mozilla Firefox, making easy to add new functionality to an existing OpenOffice installation. -
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Technical analysis library with indicators like ADX, MACD, RSI, Stochastic, TRIX... includes also candlestick pattern recognition. Useful for trading application developpers using either Excel, .NET, Mono, Java, Perl or C/C++.
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GnuCash
Personal and small-business finance manager
GnuCash is a personal and small-business finance manager with a check-book like register GUI to enter and track bank accounts, stocks, income and expenses. GnuCash is designed to be simple and easy to use but still based on formal accounting principles. -
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Dolibarr ERP - CRM
Open source ERP and CRM web software for business
Dolibarr ERP - CRM is an easy to use ERP and CRM open source software package (run with a web php server or as standalone software) for businesses, foundations or freelancers (prospect, invoicing, inventory, warehouse, order, shipment, POS, members for foundations, bank accounts...). Dolibarr is also available with auto-installers for users with no technical knowledge to install Dolibarr and all its prerequisites (Apache, Mysql, PHP) with just one package. Available platforms for such packages are: Windows, Debian, Ubuntu, Mint, Redhat, Fedora, OpenSuse, Mandriva, Mageia. Other platform can use the generic distribution. This is a modular product, than can be enhanced with tons of external modules (to provide you features not available by default) from https://www.dolistore.com Download Dolibarr ERP - CRM here or sign up for 15-day free trial of the cloud-based application with free updates and support at one of the Cloud providers https://saas.dolibarr.org/ -
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Grisbi is a very functional personal financial management program with a reasonable set of homefinance features.
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FrontAccounting (FA) is a professional web-based Accounting system for the entire ERP chain written in PHP, using MySQL. FA is multilingual and multicurrency. For further information and more downloads, visit our website, http://frontaccounting.com.
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Firefly III
Firefly III: a personal finances manager
Firefly III is a personal finance manager and double-entry accounting tool built to help individuals and small organizations track budgets, investments, debts, and expenses. Users can import bank statements (CSV, OFX, QIF) or integrate via APIs, map transaction categories, and reconcile accounts. The system supports budgeting schedules, repeating transactions, automatic categorization rules, and reporting dashboards to analyze trends over time. For investments, it tracks price history, performance, and holdings, allowing users to see their net worth across accounts and assets. Because of its foundation on solid accounting principles, it supports transfers, splits, credits, and sign conventions accurately. It can be self-hosted, allowing users full control over their financial data, with modular architecture and RESTful APIs so other tools or mobile apps can integrate. -
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Mifos - Open Source Core Banking
Democratizing Financial Services Worldwide
The Mifos Stack provides API-driven core banking infrastructure in the cloud. Apache Fineract (https://github.com/apache/fineract/) is the back-end core banking platform originated by the Mifos Initiative. Mifos X acts as the reference web and mobile apps for staff and customers providing an out of the box ready-to-deploy solution on top of Apache Fineract along with reporting, payments orchestration and other ancillary solutions. More than 20 million customers are reached by 400+ institutions using the Mifos and Fineract APIs. The back-end has the customer management, wallet/account management, loan and deposit management, general ledger, and reporting services to provide a full range of digital financial services. These back-end services are exposed through a RESTful API allowing others to rapidly build new applications to serve the poor. This multi-tenant architecture is lightweight and ready for the cloud providing the extensibility and scalability for growth. -
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JExcelApi is a java library which provides the ability to read, write, and modify Microsoft Excel spreadsheets. This project mirrors the files on http://www.jexcelapi.org, which has been known to go down on occasion.
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Akaunting
Online Accounting Software
Online accounting software designed for small businesses and freelancers. Akaunting is built with modern technologies such as Laravel, VueJS, Tailwind, RESTful API etc. Thanks to its modular structure, Akaunting provides an awesome App Store for users and developers. -
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Group Office groupware and CRM
Take your office and CRM into the cloud!
Installation instructions can be found here: https://groupoffice.readthedocs.io/en/latest/install/install.html Group Office is an open source groupware application. It makes your daily office tasks easier. Share projects, calendars, files and e-mail online. It is a complete solution for all your online office needs. From a customer phone call to a project and finally an invoice. The support system helps to keep your customers happy. Group Office is fast, secure and has privacy by design. You can stay in full control of your data by self hosting your cloud and e-mail. Our document editing solution keeps all data on the secured server instead of synchronising it to all user devices. GroupOffice is open source and modular. Which means it’s easy to customise and extend. You can turn off and on features and it enables any developer to create new modules for the platform. -
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Yapbam (Yet Another Personal Bank Account Manager) is ... another personnal bank account manager. It's cross-platform (Java), portable, extensible (with plugins), and (I hope) easy to use. More information at http://www.yapbam.net If you think Yapbam is valuable, please vote up below.
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Open Source Point of Sale is a web based point of sale system written in the PHP language. It uses MySQL as the data storage back-end and has a simple user interface. **Active development and maintenance has been moved to github (see homepage link)** If you like the project, and you are making money out of it on a daily basis, then consider to buy me a coffee so I can keep adding features.
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Barcode4J is a flexible generator for barcodes written in Java and available under the Apache License v2.0. Features: Extensions for Apache FOP, Xalan-J and SAXON, Servlet, command-line interface, output to SVG, EPS, Java2D/AWT and bitmaps.
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Open Tax Solver
Calculates income tax form entries, helps do your taxes.
OTS is a safe, secure, easy-to-use program for calculating Tax Return Form entries, and determining your tax-owed or refund-due, for Federal or State personal income taxes. Includes updated versions for US 1040, Schedules A, B, C, D, and for several states. OTS provides both graphical and textual interfaces for quickly filing out your tax forms. --- Best way to download the correct version for your platform -- go to the OTS WEBSITE: =====> https://opentaxsolver.sourceforge.net/ -
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esniper was a lightweight console application for sniping eBay auctions. *It does not work anymore.* The development stopped in 2020 because ebay has changed the login mechanism in a way we could not handle in the existing code.
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Estimate
Web based Cost Estimation, Material Takeoff and Reconciliation Tool
"Estimate" is an Open Source web based Construction Cost Estimating Software designed for medium and large Civil Construction and EPC (Engineering Procurement and Construction) companies. Features include Management of Schedule of Rates, Analysis of Rates, Project Estimation (Definitive and Control), Tender Evaluation, Cost Sheet preparation, BOQ Generation, Audit and Projection. Estimate is suitable for a wide variety of trades and businesses, including but not limited to: General/Industrial Construction, Carpentry, Plumbing, Electrical, Tile Work, Concrete Work, Landscaping, Maintenance & Repair. Building an accurate and comprehensive estimate, for a commercial construction projects can be a long gruelling process. Use Estimate to take full control over the three most important variables in your project i.e. Time, Finance and Resources (Man, Material, Equipments). -
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Barbecue is a Java library that enables the creation of barcodes in a variety of standard formats that can be displayed as Swing/AWT components, included in printed output, generated as EPS and SVG and displayed in a web application.
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QuickFIX/J is an 100% Java implementation of the popular QuickFIX open source FIX protocol engine. QuickFIX/J features include support for FIX protocol versions 4.0 through 4.4 and 5.0/FIXT1.1 (www.fixprotocol.org). Please note that the SourceForge SVN repo is read-only. Current repo can be found here: https://github.com/quickfix-j
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AI Hedge Fund
An AI Hedge Fund Team
This repository demonstrates how to build a simplified, automated hedge fund strategy powered by AI/ML. It integrates financial data collection, preprocessing, feature engineering, and predictive modeling to simulate decision-making in trading. The code shows workflows for pulling stock or market data, applying machine learning algorithms to forecast trends, and generating buy/sell/hold signals based on the predictions. Its structure is educational: intended more as a proof-of-concept than a ready-to-use financial product, giving learners insight into the mechanics of quantitative finance automation. The project underlines AI’s potential in investment strategies but also carries disclaimers that it is for research and not financial advice. The implementation is designed so developers can study the pipeline end-to-end: from data ingestion through modeling to simulated portfolio management. -
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ADempiere ERP Business Suite
A full ERP system - moved to GitHub. See full description for details.
NOTE: We're moving! See adempiere.net for more info. ADempiere Business Suite is a fully functional ERP/CRM/MFG/SCM/POS system suitable for large enterprise adoption. The software is fully open source and supported by an international community of developers and system experts. -
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Magstripper is a magnetic card reader and decoder that takes raw waveform information from a magnetic audio head (soldered directly to a mono audio jack) and processes it via a mic input. It also includes a multi-user door lock access control system.
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Buddi is a simple budgeting program targeted for users with little or no financial background. It allows users to set up accounts and categories, record transactions, check spending habits, etc.
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Cyclos
Open Source online & mobile banking software
Cyclos offers a complete on-line banking system with additional modules such as e-commerce and communication tools. Cyclos is available in more than ten languages and used worldwide by many organizations and communities. The Cyclos platform permits a de-centralization of banking services that can stimulate local trade and development. Cyclos is used for Microfinance institutions, local banks (in developing countries) and complementary currency systems like LETS, Barter networks and Time banks. Cyclos is a project of the Dutch non profit organization STRO. -
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xlsLib
C++/C library to construct Excel .xls files in code.
A multiplatform C++ library for dynamic generation of Excel .xls files containing multiple worksheets. Unlike .csv files, these can be directly opened by Excel and thus provide an excellent way to output large data sets that require further analysis. To see the latest changes, select "Files" and view the README text displayed at the bottom of that pane. IMPORTANT: Major changes are contained in the current SVN source. If you have time please try to use it or the xlslib-package-2.4.0b1.zip archive, and enter bug reports on any problems! Changes: - library specific strings now in their own namespace - iOS Objective-C library - most project files updated (MSVS etc) - C bridge now supports formulas Note: there is a related SF project, libxls, to read Excel files.