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Browse free open source Financial software and projects 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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  • FusionAuth: Authentication and User Management Software Icon
    FusionAuth: Authentication and User Management Software

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  • 1
    Open Tax Solver

    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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    Downloads: 53 This Week
    Last Update:
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  • 2
    Forex Assistant

    Forex Assistant

    Manage accounts, analyze trades, track strategies & stats , News & Cal

    Forex Assistant is a comprehensive Windows desktop application designed to support forex traders in every aspect of their trading journey. From essential trading calculators and market insights to powerful account and trade management, it brings everything you need into one intuitive platform. 🔑 Main Features 🧮 Calculator Tools Profit/Loss Calculator Currency Converter Position Size Calculator Pips Calculator Margin Calculator 🌍 Market Insights Live Market News Economic Calendar 📊 Account Manager Add multiple trading accounts with balance and custom descriptions. Track current balance, profit/loss, and drawdown (daily and total). Add and manage positions manually with full details: entry price, stop loss, take profit, volume, PNL, and notes. Add notes for every trade: describe the strategy used, whether the trade was emotional or technical. Import historical trades directly from MetaTrader HTML reports. 📈 Trade Analysis & Insights
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    Downloads: 121 This Week
    Last Update:
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  • 3
    Finanx 12c

    Finanx 12c

    Financial Calculator

    The Finanx 12c is a free software that mimics the HP-12C financial calculator. This software was developed for educational purposes. IT'S NOT RECOMMENDED using this calculator for professional calculations. If you find any bugs, please, let me know. Click "Bugs" in the menu bar to report bugs found.
    Downloads: 19 This Week
    Last Update:
    See Project
  • 4
    OptionMatrix

    OptionMatrix

    Financial Derivatives Calculator with 171+ Models (Options Calculator)

    A real-time financial derivatives calculator supporting 171+ models from QuantLib, Financial Numerical Recipes in C++ and MetaOptions. Matrices of prices are created with iterating strikes and/or months. A strike control system can produce any strike. A generalized date engine can calculate re-occuring distances to any industry used expiration into the future. Spread engine with spread views. Models Supported: Black-Scholes, Merton-73, Black-76, Roll Geske Whaley, Garman KohlHagen, Jump Diffusion, Quanto, Vasicek Bond Option, Turnbull Wakeman Asian, TimeSwitchOption, Look Barrier, Bachelier, PartialTimeBarrier, GapOption, Extreme Spread Option, Simple Chooser, ComplexChooser, PartialFixedLB, Executive, CashOrNothing, Extendible Writer, OptionsOnOptions, BAWAmericanApprox, BSAmericanApprox, AssetOrNothing, Bisection, BAWbisection, BSbisection, Gfrench, Gcarry, Swapoption, Complex Chooser, Super Share, EquityLinkedFXO, Spread Approximation, BinaryBarrier and more
    Downloads: 9 This Week
    Last Update:
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  • AI-based, Comprehensive Service Management for Businesses and IT Providers Icon
    AI-based, Comprehensive Service Management for Businesses and IT Providers

    Modular solutions for change management, asset management and more

    ChangeGear provides IT staff with the functions required to manage everything from ticketing to incident, change and asset management and more. ChangeGear includes a virtual agent, self-service portals and AI-based features to support analyst and end user productivity.
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  • 5
    Financial Calculator

    Financial Calculator

    Windows 11 only — includes 16 sections with text and visual reports.

    Take control of your finances with Financial Calculator 7.5, a professional yet easy-to-use desktop tool built for precise, everyday financial calculations. From planning loans and estimating taxes to generating invoices and creating QR codes, this all-in-one software offers 16 specialized sections that make your daily financial and business tasks faster, clearer, and more accurate. Whether you’re a student, small business owner, or finance professional, Financial Calculator brings professional-grade precision to your desktop — no installation required. Perform calculations for Bank, Barcode, Building, Buy & Sell, Commodity, Dividing Money, Inflation, Interest, Internet Usage, Invoice, Loan, Password, Phone, QR Code, Stock Market, and Tax. Unlock the full version with a small cryptocurrency payment (as low as $0.01).
    Downloads: 7 This Week
    Last Update:
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  • 6
    RPNCalc

    RPNCalc

    RPNCalc - The command line Reverse Polish Notation (RPN) Calculator

    RPNCalc is the command-line based Reverse Polish Notation (RPN) calculator. RPN calculators make it very simple to do complex calculations, especially if there are parentheses involved. I've created a User Guide (https://frossm.github.io/RPNCalc-UserGuide) to do a better job of explaining how to use RPNCalc than the old readme.md file, which was getting really long. If you have questions, issues, feedback, or ideas, please let me know. You can contact me via the links in the **Introduction** page of the User Guide. ## RPNCalc User Guide: https://frossm.github.io/RPNCalc-UserGuide ##
    Downloads: 6 This Week
    Last Update:
    See Project
  • 7
    Financial Calculator

    Financial Calculator

    Windows 11 only — includes 16 sections with text and visual reports.

    Take control of your finances with Financial Calculator 7.5, a professional yet easy-to-use desktop tool built for precise, everyday financial calculations. From planning loans and estimating taxes to generating invoices and creating QR codes, this all-in-one software offers 16 specialized sections that make your daily financial and business tasks faster, clearer, and more accurate. Whether you’re a student, small business owner, or finance professional, Financial Calculator brings professional-grade precision to your desktop — no installation required. Perform calculations for Bank, Barcode, Building, Buy & Sell, Commodity, Dividing Money, Inflation, Interest, Internet Usage, Invoice, Loan, Password, Phone, QR Code, Stock Market, and Tax. Unlock the full version with a small cryptocurrency payment (as low as $0.01).
    Downloads: 5 This Week
    Last Update:
    See Project
  • 8
    Programmers Calculator is the original calculator for the Palm OS programmed by Gary T. Desrosiers generously donated into the public domain.
    Downloads: 4 This Week
    Last Update:
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  • 9
    elcalc

    elcalc

    Simple, Cross-Platform Calculator Made

    Elcalc is a simple, cross-platform calculator, built with Electron. It is fast, intuitive and can be used as an alternative for the default system calculator. It supports basic arithmetic operations.
    Downloads: 3 This Week
    Last Update:
    See Project
  • Teradata VantageCloud Enterprise is a data analytics platform for performing advanced analytics on AWS, Azure, and Google Cloud. Icon
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  • 10
    HP-15C Based Calculator
    Downloads: 2 This Week
    Last Update:
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  • 11
    Getting your first mortgage? No, this isn't spam, its mort! A simple but powerful loan/mortgage calculator that also amortizes.
    Downloads: 2 This Week
    Last Update:
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  • 12
    scii - Spreadsheet Calculator II - A fork of sc
    Downloads: 2 This Week
    Last Update:
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  • 13
    Excel workbook that calculates return on investment (ROI) for estimated costs and benefits of automating software testing.
    Downloads: 1 This Week
    Last Update:
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  • 14
    Arrear_Pension_Calculator

    Arrear_Pension_Calculator

    Simple app for calculating arrear pension amount of a given period.

    A simple Arrear Pension Calculator app written in python with GUI specifically Govt. employees (Central & State). This application calculates arrear (Due - Drawn) / overdrawn / recovery of pension between any given periods. This app is not associated with the Govt. This app is for informational purpose only. This project is open source under GNU public license v3.0
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    A Perl CGI script which calculates a matrix of loan payments in a table for the purpose of determining which interest rate and term will best fit a buyer's needs. Working on linking the payment values to a ammort schedule.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    Money Math

    Money Math

    Smart financial calculator for savings, discounts and payments

    Looking for a simple yet powerful financial tool? Our calculator app helps you easily manage your money with four key features. You can calculate how much your savings will grow with interest — just enter your deposit, rate, and period. It’s perfect for planning your investments. The app also helps you understand discounts — input the original price and discount percentage, and see the final price instantly. Managing regular payments is simple: just enter the amount, frequency, and duration to find out your total expenses. Additionally, the app provides a clear financial overview, combining all calculations to help you plan smarter. Its intuitive interface makes navigation easy, and all calculations use reliable formulas for precision. The app is fast, lightweight, and works offline, securing your privacy by not storing personal data. Whether budgeting, saving, or shopping smarter, this app is your go-to tool for better financial decisions.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    Nubage - Expenses Calculator

    Nubage - Expenses Calculator

    Calculate your Life! :)

    ***This Software has been reviewed by ilovefreesoftware.com: http://www.ilovefreesoftware.com/07/windows/expense-calculator-calculate-daily-monthly-yearly-expenses.html *** You can collect all your daily/monthly/... expenses and the tool will show you, how much money you spend for your life per Year/Month/Day/Hour. You are able to load/save this list for future addings. This is my first project on SourceForge, I hope you enjoy it. :) If you have any suggestions/bugs feel free to contact me. Have fun! :) Raph NOTE: You need Java 8 to run this tool! Get it here if you haven't already installed it:http://www.java.com/en/download/
    Downloads: 1 This Week
    Last Update:
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  • 18
    It began as a small C++ calculations program then became a Visual Basic calculator and is now C++ once more.
    Downloads: 1 This Week
    Last Update:
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  • 19

    Tax Calculator

    Easy way to find out your new salary!

    Enter your Salary and it will minus all the tax and leave you with your final amount of money.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    Programmable RPN and Algebric calculator. Written with Kylix3 OpenEdition for Linux. Mathematic - Trigonometric - Calendar - Financial functions. Very easy to use. Italian and English language. More details on my home page: http://mcz.altervista.org
    Downloads: 0 This Week
    Last Update:
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  • 21
    Basic Financial Calculator

    Basic Financial Calculator

    This Persian(Farsi) program is a basic personal financial calculator.

    This program is for some basic personal financial calculations in Banking, Gold, Interest, Buy and Sell, Tax, Dividing Money, buy and sell shares in stock exchange and Inflation. This program is just for Persian (Farsi) language which speaks in Iran, Afghanistan and Tajikistan. Next version of this program would be in more language (English, etc.) and also compatible with many other devices. However, this is a first version of my program and you need Windows with .NET framework 4, to setup this program. When next version becomes ready, I announced that immediately.
    Downloads: 0 This Week
    Last Update:
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  • 22
    Basic Finnancial Calculator
    Calculadora Financiera Básica, una forma de calcular sencilla y de forma precisa para sus cálculos básicos financieros como: Cálculo de Márgenes de Ganancia y la Porcentual (muy utilizadas para la gente común y comerciantes), la depreciación, cálculo del Punto de Equilibrio, cálculo de Tasas de Intereses y Amortizaciones básicas, cálculo del precio total (¡Incluye Estilo factura en Pantalla!)
    Downloads: 0 This Week
    Last Update:
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  • 23
    CGPA SGPA Calculator

    CGPA SGPA Calculator

    A basic calculator for calculating CGPA and SGPA

    CGPA-SGPA is a basically a calculator, designed and developed to calculate ones SGPA (Semester Grade Point Average) or CGPA (Cumulative Grade Point Average). It is based on latest UGC(IN) grade and its equivalent grade point. Minimum requirements : MS .NET Framework 4.0
    Downloads: 0 This Week
    Last Update:
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  • 24
    The program simulates a desktop calculator, complete with stripe print of the calculations. Allows you to perform all the operations that we are normally accustomed to dealing with that type of peripherals.
    Downloads: 0 This Week
    Last Update:
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  • 25
    This is a Simple Win32 Calculator to look like the built in windows Calculator. It only does basic calculations. Source Code is include in the program after install. Written in Visual Basic 9. Looking for help to port Java and C#.
    Downloads: 0 This Week
    Last Update:
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