Showing 45 open source projects for "invoice"

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  • 1
    Invoice Ninja

    Invoice Ninja

    Free and Open Source Invoicing, Expenses & Time-Tracking

    Invoice Ninja is a free and open source invoicing, expenses and time-tracking app built with Laravel and Flutter. It offers a plethora of great features, including custom branded invoice design, recurring invoicing and auto-bill clients, real-time quote creation and custom proposals, expense reporting and so much more! Invoice Ninja is also capable of handling online payments from more than 40 payment gateways, including Stripe, PayPal and WePay.
    Downloads: 13 This Week
    Last Update:
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  • 2
    Frappe Books

    Frappe Books

    Free Desktop book-keeping software for small-businesses & freelancers

    ...It's made to work offline using a local SQLite file as the database, so you don't have to be dependent on a Cloud service provider. Frappe Books features a clean and modern, web-friendly UI, beautiful invoice templates, standard financial reports and other great features. It's inherently portable and secure, as your data is never uploaded into the Cloud.
    Downloads: 61 This Week
    Last Update:
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  • 3
    Invoiso

    Invoiso

    Free Invoice & Billing Software for Windows, Linux & Mac

    Free offline invoice software for Windows, Linux and Mac. 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.
    Downloads: 67 This Week
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  • 4

    voltiva

    Voltiva - worldwide smart electricity billing: auditable invoice engine, tariff management, OCR import, PDF export (PyQt6)

    Downloads: 1 This Week
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  • 5
    Free Invoicing Software for 2025

    Free Invoicing Software for 2025

    Simple Invoicing program for Desktop written in vba and Access

    ...Read the readme file, and manual for greatest use of this App. This is an upgrade to MSFrnd2a. The application can now produce a Revenue Graph, you can add Inventory on the Invoice, and print mail labels. The MS-Access Runtimes for 32/64 bits are included. The ZIP file contains all program code, and program elements needed to work on. Find other free programs at: https://gotomarcus.com/main/marcus/index.php or gotomarcus.com/currentswms/index.php
    Downloads: 3 This Week
    Last Update:
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  • 6
    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: 60 This Week
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  • 7

    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: 37 This Week
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  • 8
    FundLink

    FundLink

    FundLink Windows Setup file. FundLink is a cash / fund accounting app

    FundLink keeps track of cash transactions, i.e. cash received and cash spent out of a cash fund / cash box, with minimal input from you and lots of reports to choose from. Cash funds or boxes can be: petty cash, cash in certain currency, check boxes, bank accounts, gift fund, project cash, vacation fund, etc. In technical terms FundLink is a bookkeeping program based on the cash basis of accounting, that has the ability to export its data as single journal entries or double journal...
    Downloads: 2 This Week
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  • 9
    KSeF API | Faktury KSeF

    KSeF API | Faktury KSeF

    Profesionalna integracja z Krajowym Systemem e-Faktur (KSeF)

    W serwisie ksefapi.pl specjalizujemy się w kompleksowych rozwiązaniach związanych z Krajowym Systemem e-Faktur (KSeF). Oferujemy integrację z KSeF, generowanie i wysyłanie e-faktur w formacie XML, a także wizualizację faktur (PDF lub HTML). Zapewniamy szybką i skuteczną obsługę faktur KSeF, w tym wyszukiwanie i pobieranie faktur sprzedażowych i kosztowych. Pomagamy firmom w adaptacji do nowych regulacji KSeF, oferując narzędzia i wsparcie techniczne. Aktualnie dostępne narzędzia: -...
    Downloads: 1 This Week
    Last Update:
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  • 10
    Financial Calculator

    Financial Calculator

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

    ...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.
    Downloads: 3 This Week
    Last Update:
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  • 11
    Financial Calculator (Linux)

    Financial Calculator (Linux)

    Professional financial tools: 16 sections with text and visual reports

    ...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.
    Downloads: 1 This Week
    Last Update:
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  • 12
    Crater

    Crater

    Free & Open Source Invoice App for Freelancers & Small Businesses

    Crater is an open-source web & mobile invoicing app made especially for freelancers and small businesses. It's the complete invoicing solution you need, allowing you to track expenses and payments, calculate taxes, and create estimates and invoices. As both a web and a mobile app, Crater allows you to manage your invoices and keep track of everything even on the go. Crater's web application is made with Laravel & VueJS, while the mobile apps are built using React Native. Crater is a...
    Downloads: 7 This Week
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  • 13

    CatWin NET

    Open-source online accounting software in PHP and MySQL

    CatWin NET is an open-source Spanish accounting application with a web interface based on PHP and MySQL, designed to run on web servers such as Apache. It was originally developed under the Spanish General Accounting Plan (1990) framework. Requirements CatWin requires a MySQL/MariaDB server and sufficient database privileges. Creating a new company requires permission to create databases. Some shared hosting providers do not allow users to create databases programmatically; in that...
    Downloads: 0 This Week
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  • 14
    OpenSourceBilling

    OpenSourceBilling

    A super simple way to create & send invoices, receive payments online

    OpenSourceBilling or OSB is a simple, open source web application for creating and sending invoices, receiving payments, managing clients, and tracking and reporting. There’s no need to pay for these services because OSB does it all for free and easily. OSB can produce reports of sales, payments and collected revenues, and simply makes billing and invoicing hassle-free. OSB comes with plenty of built-in features, such as recurring invoices, exporting to PDF, time tracking, receiving...
    Downloads: 0 This Week
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  • 15
    Beigesoft Enterprise Information System

    Beigesoft Enterprise Information System

    JEE based Accounting web-application.

    Beigesoft™ EIS is free accounting software. This is JEE-WEB-based software that works anywhere - on MS Windows, Mac, Linux and Android. This is the first version of the successor to Beige Accounting All In One. The main goal was successfully achieved, it works noticeably faster on weak devices such as a smartphone than its predecessor. It works as: * Standalone A-Jetty web-app for standard Java (Ms Windows, Mac, Nix...). * Standalone A-Jetty web-app for Android (use "Beigesoft...
    Downloads: 0 This Week
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  • 16
    FreelancerBooks - Project Management

    FreelancerBooks - Project Management

    FreelancerBooks -Project Management for Freelancers and Agencies

    FreelancerBooks is a free, web-based project management system written in PHP with MySQL database back end. FreelancerBooks was initially designed for freelancers and agencies but it can be used for any professional service provider/organization. It will allow the freelancers/managers to have full control of the projects from client lead to completion. Freelancer book features include: Download the latest version from: http://www.freelancerbooks.com 100% Free Cloud...
    Downloads: 0 This Week
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  • 17

    Invoice With Roshi

    Offline invoicing tool updated with latest GST rules

    A simple easy to use tool where you can create invoices and store locally. The software is 100% offline, that is, it does not need the internet to work (although you do need the internet during setup).
    Downloads: 0 This Week
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  • 18

    Billing Software

    its complete accounting system for small scale manufacturing companies

    CA-MAZA is a open-source, cross-platform BOOTSTRAP,HTML5 UI built to meet the most demanding needs of its users. It is designed to be very extensible and fully configurable. Finally, an IDE with all the features you need, having a consistent look, feel and operation across platforms. Help full for all small business and merchant's who want to manage their account without help of CA. We hope you enjoy using Code::Blocks! The Team AMIS Code::Blocks Web Site...
    Downloads: 0 This Week
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  • 19
    Fakturama - Invoicing Made Easy

    Fakturama - Invoicing Made Easy

    The Open Source Invoice Management Software

    Fakturama is an open-source software solution designed for enterprises for creating invoices, as well as delivery notes, while managing and editing your online web shop. Fakturama was especially created in order to provide a comprehensive invoicing program that is compatible with office suites used worldwide, like LibreOffice and Apache OpenOffice. Fakturama makes it easy to create invoices, manage products, contacts, documents, payments, shippings, VATs and all the other constituents...
    Downloads: 9 This Week
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  • 20

    Mutasyon

    Mutasyon is a script can add customer, products, inventory or invoice

    Mutasyon is write with PHP, Smarty, HTML, CSS and JQuery. We can create customer, invoice and products with it and tracking money which input or output. Mutasyon can; 1) Add customer, 2) Create invoice, 3) Add product and product images, 4) See invoice detail and print invoice 5) See product detail, amount, price, tax and profit 6) See money input and output history. And its support multi language and template.
    Downloads: 0 This Week
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  • 21
    LinxBooks – Have faith and carry on. Overview LinxBook is a simple and easy-to-use business accounting application. Linxbooks includes basic features that help the businesses create invoices, quotations, manage payments, payrolls, contracts and expenses Download at GitHub: https://github.com/LinxHQ/linxbooks Demo is at: http://linxbooks.com/demo (user: admin, password: admin123)
    Downloads: 0 This Week
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  • 22
    TEMS -Time and Expense Management System

    TEMS -Time and Expense Management System

    Captures time & expense by project and account; generates invoice

    Keeps track of times entry and expenses reports of employees and contractors by projects and accounts, automatically generates invoices with details. You can print weekly time cards and expense reports by employee, project, and account. It allows you to review and approve times & expenses before generating invoices. This application is ideal for who bills their clients by time and material basis, such as IT consultants, Lawyers, CPAs, Government Contractors etc. Full featured demo...
    Downloads: 0 This Week
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  • 23
    Simple Accounting

    Simple Accounting

    Orders & Invoicing, record receipts, reconcile banking, product labels

    ...Features include: Manage Customers Manage Products Create Orders & Invoices Import Banking Data VAT Analysis Record receipts including scanning to database Reconcile expenses to Bank Data Label Designer Create Branded Product Labels Branded Order, Invoice & Label with your own corporate logo etc
    Downloads: 3 This Week
    Last Update:
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  • 24
    invoice software
    Downloads: 0 This Week
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  • 25
    Intopia layer

    Intopia layer

    Software platform

    ...Software include next modules: users, users admin, rights groups, documents/files, languages, contacts, companies, system correct and check. Added some basic finance modules (examples): invoice orders, equipment and contract management.
    Downloads: 0 This Week
    Last Update:
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