Showing 133 open source projects for "python accounting source code"

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    Premier Construction Software

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  • 1
    Google Spreadsheets Python

    Google Spreadsheets Python

    Google Sheets Python API

    gspread is a Python API for Google Sheets. A service account is a special type of Google account intended to represent a non-human user that needs to authenticate and be authorized to access data in Google APIs [sic]. Since it’s a separate account, by default it does not have access to any spreadsheet until you share it with this account. Just like any other Google account. To access spreadsheets via Google Sheets API you need to authenticate and authorize your application. Older versions of...
    Downloads: 5 This Week
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  • 2
    NautilusTrader

    NautilusTrader

    A high-performance algorithmic trading platform

    NautilusTrader is an open-source, high-performance, production-grade algorithmic trading platform, provides quantitative traders with the ability to backtest portfolios of automated trading strategies on historical data with an event-driven engine, and also deploy those same strategies live, with no code changes. The platform is 'AI-first', designed to develop and deploy algorithmic trading strategies within a highly performant and robust Python native environment. ...
    Downloads: 26 This Week
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  • 3
    QuantDinger

    QuantDinger

    AI-driven, local-first quantitative trading platform for research

    QuantDinger is a local-first, open-source quantitative trading platform designed to bring AI-assisted analysis, strategy development, backtesting, and live execution into a self-hosted workspace where data and API credentials remain under your control. Unlike cloud-locked quant services, it lets users run the entire trading workflow on their own infrastructure using Docker, with a PostgreSQL database backend, a Python backend API, and a web frontend UI that supports visualization and strategy management. ...
    Downloads: 3 This Week
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  • 4
    VisiData

    VisiData

    A terminal spreadsheet multitool for discovering and arranging data

    Code in the stable branch of this repository, including the main vd application, loaders, and plugins, is available for use and redistribution under GPLv3. VisiData is a free, open-source tool that lets you quickly open, explore, summarize, and analyze datasets in your computer’s terminal. VisiData works with CSV files, Excel spreadsheets, SQL databases, and many other data sources.
    Downloads: 9 This Week
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    Field Service+ for MS Dynamics 365 & Salesforce

    Empower your field service with mobility and reliability

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  • 5
    Quadratic

    Quadratic

    Data science spreadsheet with Python & SQL

    ...Bring the latest open-source tools directly to your spreadsheet. Quickly write code and see the output in full detail. No more squinting into a tiny terminal to see your data output.
    Downloads: 8 This Week
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  • 6
    alpha_vantage

    alpha_vantage

    A python wrapper for Alpha Vantage API for financial data.

    Alpha Vantage delivers a free API for real time financial data and most used finance indicators in a simple json or pandas format. This module implements a python interface to the free API provided by Alpha Vantage. You can have a look at all the API calls available in their API documentation. For code-less access to the APIs, you may also consider the official Google Sheet Add-on or the Microsoft Excel Add-on by Alpha Vantage. To get data from the API, simply import the library and call the...
    Downloads: 2 This Week
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  • 7
    Optopsy

    Optopsy

    A nimble options backtesting library for Python

    Optopsy is a Python-based, nimble backtesting and statistics library focused on evaluating options trading strategies like calls, puts, straddles, spreads, and more, using pandas-driven analysis. The csv_data() function is a convenience function. Under the hood it uses Panda's read_csv() function to do the import. There are other parameters that can help with loading the csv data, consult the code/future documentation to see how to use them. Optopsy is a small simple library that offloads...
    Downloads: 4 This Week
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  • 8
    webERP Accounting & Business Management

    webERP Accounting & Business Management

    Accounting & Best Practice Business Administration System

    Entirely web-based. It is coded in efficient PHP to present a very low overhead on hardware presenting screens fast & capable of working over low bandwidth connections. Now with HTML 5 & javascript form validation & table sorting. Mature codebase with a wealth of features: - Multi-currency - Multi-inventory location - Serial and Lot tracking inventory - Full double entry general ledger - Weighted Average or Standard Costing - Manufacturing works orders - Material Requirements...
    Downloads: 41 This Week
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  • 9
    Yahoo! Finance market data downloader

    Yahoo! Finance market data downloader

    Yahoo! Finance market data downloader

    Ever since Yahoo! finance decommissioned their historical data API, many programs that relied on it to stop working. yfinance aims to solve this problem by offering a reliable, threaded, and Pythonic way to download historical market data from Yahoo! finance. yfinance aimed to offer a temporary fix to the problem by scraping the data from Yahoo! Finance and returning a the data in the same format as pandas_datareader's get_data_yahoo(), thus keeping the code changes in existing software to a...
    Downloads: 10 This Week
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    Failed Payment Recovery for Subscription Businesses

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  • 10
    AIQuant

    AIQuant

    AI-powered platform for quantitative trading

    ai_quant_trade is an AI-powered, one-stop open-source platform for quantitative trading—ranging from learning and simulation to actual trading. It consolidates stock trading knowledge, strategy examples, factor discovery, traditional rules-based strategies, various machine learning and deep learning methods, reinforcement learning, graph neural networks, high-frequency trading, C++ deployment, and Jupyter Notebook examples for practical hands-on use. Stock trading strategies: large models,...
    Downloads: 1 This Week
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  • 11

    Applewood Computers Accounting System

    Accounting system for smaller companies written in GnuCobol.

    ACAS contains Sales, Purchase and Nominal Ledgers (Accounts Receivable, Payable and General Ledgers) as well as Stock Control (Inventory Control) along with IRS (Incomplete Records System). This system is written in COBOL and uses the free GnuCobol compiler which compiles via C code and is therefore compatible with the following platforms: Linux, Unix, Dos, Mac OSX, Windows providing you have installed the GCC C compiler or an equivalent as well as GnuCobol. at a minimum, v2.0+. Note that...
    Downloads: 24 This Week
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  • 12
    Liberapay

    Liberapay

    Source code of the recurrent donations platform Liberapay

    Liberapay is an open-source platform designed to facilitate recurring donations to creators, developers, and projects, with a strong emphasis on transparency, privacy, and sustainability. It operates as a nonprofit service that allows users to financially support individuals or teams on a weekly, monthly, or yearly basis without expecting rewards in return. The platform is particularly focused on funding open-source software, free knowledge, and creative work, helping contributors maintain...
    Downloads: 0 This Week
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  • 13
    Tally

    Tally

    Let agents classify your bank transactions

    Tally is an open-source, AI-assisted tool designed to automate the classification of personal financial transactions, helping users turn raw bank data into meaningful categories without manual tagging. At its core, Tally pairs a local rule engine with large language models so that an AI assistant (like Claude Code, Copilot, or any CLI agent) interprets, suggests, and categorizes expenses, savings, subscriptions, and income events based on your own rules and behavior. It generates...
    Downloads: 0 This Week
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  • 14
    Financial Calculator

    Financial Calculator

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

    Take control of your finances with Financial Calculator 8.0, 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...
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    Downloads: 22 This Week
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  • 15
    NeuralProphet

    NeuralProphet

    A simple forecasting package

    NeuralProphet bridges the gap between traditional time-series models and deep learning methods. It's based on PyTorch and can be installed using pip. A Neural Network based Time-Series model, inspired by Facebook Prophet and AR-Net, built on PyTorch. You can find the datasets used in the tutorials, including data preprocessing examples, in our neuralprophet-data repository. The documentation page may not we entirely up to date. Docstrings should be reliable, please refer to those when in...
    Downloads: 0 This Week
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  • 16

    Integration tools for Tally

    Export data to Tally

    Export data to Tally Accounting software by code.
    Downloads: 7 This Week
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  • 17
    Financial Calculator (Linux)

    Financial Calculator (Linux)

    Professional financial tools: 16 sections with text and visual reports

    Take control of your finances with Financial Calculator 8.0, 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...
    Downloads: 2 This Week
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  • 18
    Tartan Systems

    Tartan Systems

    Free Open Source Accounting and Club Systems

    Tartan Systems is a free open source suite of financial, accounting and other programs for businesses and clubs written in python. The modules comprise the following: Asset's Register Book Clubs (Member and Book Register) Booking's Manager (Resorts and B&B's) Bowls Clubs (Lawn Bowls Tabs Draws and Competitions) Bowls Sectional Competitions (Lawn Bowls) Creditor's Ledger (Accounts Payable) Debtor's Ledger (Accounts Receivable) General Ledger (Nominal Ledger) Loans Ledger (Fixed and Variable Term Loans) Member's Ledger (Sports and Other Clubs) Rental's Ledger (Property and Collection) Salaries and Wages - ZA (Includes Staff Loans) Sales Invoicing (Includes Sales Orders, Quotations and Works Orders) Store's Ledger (Inventory)
    Downloads: 3 This Week
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  • 19
    Odoo

    Odoo

    Open-source business management software

    Odoo 18 is a comprehensive open-source business management software that offers a suite of integrated applications to streamline various organizational processes. Designed for flexibility and scalability, it provides tools for managing functions like sales, inventory, accounting, human resources, and customer relationships. Odoo's modular structure allows businesses to adopt only the features they need while maintaining the option to expand functionality as they grow. The open-source version...
    Downloads: 69 This Week
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  • 20
    Invoiso

    Invoiso

    Free Invoice & Billing Software for Windows & Linux

    Free offline invoice software for Windows and Linux. Create professional PDF invoices, manage clients and products - no internet, no subscription, no account needed. Invoiso is a free, open-source desktop invoicing app for small businesses, shops, and freelancers on Windows and Linux. All data stays on your device — no internet required, ever. Default Login: Username: admin Password: admin You will be prompted to change the password on first login.
    Downloads: 51 This Week
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  • 21
    Free Invoicing Software for 2025

    Free Invoicing Software for 2025

    Simple Invoicing program for Desktop written in vba and Access

    This is a learning/sample/functional Invoicing program written in vba and MS-Access. It is for a small, or personal, business. It should give you practice in learning/use of Invoicing, and installing on the desktop, and programming in vba and MS-Access. Note that the free MS-Access Runtime is with the download . You need MS-Access if you want to work with the program code or print reports (part of Office 365). The program processes Invoicing and Quotes, and produces reports for A/R,...
    Downloads: 11 This Week
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  • 22
    Free Invoicing Software for Auto Shops

    Free Invoicing Software for Auto Shops

    An Invoicing program for Auto Shops written in vba and MS-Access.

    This is an sample/learning/functional Invoicing program written in vba and MS-Access. It is for a small, or personal, Auto Repair type business. It should give you practice in learning/use of Invoicing, and installing on the desktop, and programming in vba and MS-Access. Note that the free MS-Access Runtime is with the download . You need MS-Access if you want to work with the program code, or print reports (part of Office 365). The program processes Invoicing, Appointments, and Quotes, and...
    Downloads: 5 This Week
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  • 23
    Defalto

    Defalto

    Fast, modular open source CRM for growing businesses

    Defalto CRM, developed by IT-Solutions4You, is a modern and modular open source CRM system built on over 15 years of real business and CRM development experience. Designed for companies of all sizes, it helps teams manage sales, projects, and customer relationships efficiently through a clean, intuitive interface. The platform combines professional know-how with modern design and functionality. Its free core modules cover essential CRM features, while optional add-ons expand capabilities...
    Downloads: 4 This Week
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  • 24
    Reactorcore's Revshare System

    Reactorcore's Revshare System

    Ultimate Zero-Budget Revshare Solution for Indie Teams

    Reactorcore's Revshare System is a comprehensive, standalone web application designed for project leaders running revenue-sharing creative teams. It provides everything needed to fairly compensate contributors in zero-budget collaborative projects. KEY FEATURES: • Smart Payout Calculator - Automated tier-based revenue splits with self-balancing fairness algorithms • Team Management - Track contributors, assign tiers, manage payment info, export credits lists • History & Reports -...
    Downloads: 0 This Week
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  • 25
    billing-animal-hospital

    billing-animal-hospital

    Demo Invoicing APP for Veterinarian Medical Office

    This is an sample Invoicing program written in vba and MS-Access. It is for a small, or personal, Vets Medical Office. It should give you practice in learning/use of Invoicing, and installing on the desktop, and programming in vba and MS-Access. Note that the free MS-Access Runtime is with the download . You need MS-Access if you want to work with the program code or print reports (part of Office 365). The program processes Invoicing, Appointments, and Quotes, and produces reports for A/R,...
    Downloads: 6 This Week
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