Browse free open source Billing software and projects for Windows and Linux below. Use the toggles on the left to filter open source Billing software by OS, license, language, programming language, and project status.

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  • 1
    Frappe Books

    Frappe Books

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

    Frappe Books is a free and open source desktop book-keeping software that's simple and well-designed to be used by small businesses and freelancers. It's got everything you need from a small business accounting tool: invoices, billing, payments, reporting and more. 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: 42 This Week
    Last Update:
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  • 2
    OpenClinic GA

    OpenClinic GA

    Open Source Integrated Hospital Information Management System

    OpenClinic GA is an open source integrated hospital information management system covering management of administrative, financial, clinical, lab, x-ray, pharmacy, meals distribution and other data. Extensive statistical and reporting capabilities.
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    Downloads: 157 This Week
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  • 3
    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. It also accepts payments using credit cards, ACH, Bitcoin and more. Get paid online, organize project workflows with Kanban Boards, and track time online via your Webapp account all with Invoice Ninja.
    Downloads: 10 This Week
    Last Update:
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  • 4

    Free Weighbridge Software

    Imagic Solution Easy to Use Windows Based Weighbridge Software

    Imagic Solution Provide Easy to Use Windows Based Weighbridge Software, its Support Win10/Win11/Win7, 32 and 64 Bit both OS. Facility to Create Multi User with Various Authorisation, it will Provide Secure Weighment with Various Facility Like CCTV Image Capture, RFID Reader Integration, Boom Barrier Integration, Traffic Light, PA Sound System, LED display etc... This Software Provide a secure and Fraud-Free-Operation of All Kind Of Weighbridge, its Design to Suitable for all Kind of Industries. It will use Configurable various Database as per requirement. Software Suitable for In Bellow Sector: Industries Weighbridge [LAN Based Software for Multi Weighbridge], Public Weighbridge, Cloud Based Online Weighbridge Reporting system, Label Printing Scale Software, Batching Scale Software, Barcode + QR Code printing, CCTV Weighbridge Software, Support Multi Language Selection Option,
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    Downloads: 77 This Week
    Last Update:
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  • 5
    SolidInvoice

    SolidInvoice

    Simple and elegant invoicing solution

    SolidInvoice is a simple open source general billing manager/ invoicing application made for small businesses and freelancers. It helps you manage clients, contacts, day-to-day billing and more so you can always get paid right and on time. SolidInvoice is capable of handling recurring invoices, quotes and estimates, as well as online payments. You can receive payments from a number of different gateways such as Paypal Express, Stripe Checkout, Be2bill and more. It also supports multiple currencies. SolidInvoice has a powerful and flexible RESTful API so you can easily integrate it to any other service.
    Downloads: 8 This Week
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  • 6
    Openbravopos

    Openbravopos

    Open Source Openbravo POS convert to Commercial Retail ERP and POS

    Complete and user-friendly retail POS functionality A comprehensive, flexible, and user-friendly cloud-based retail POS software. 1. Sales, quotations, reservations, and returns, including cross-store and cross-channel scenarios. 2. Automatic validation of customer personal data. 3. Configuration of keymaps for quick access to options and featured products. https://www.youtube.com/watch?v=Aai3iYLP2TQ&pp=ygUNb3BlbmJyYXZvIGtkcw%3D%3D Contact: both version of Openbravo POS osopenbravo@gmail.com Join Our Channel: https://whatsapp.com/channel/0029Vavg10ZIXnlvG5dUDu0x
    Downloads: 96 This Week
    Last Update:
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  • 7
    Aronium Free Windows Point of Sale

    Aronium Free Windows Point of Sale

    Easy to use, modern and reliable POS solution.

    Speed From setup to selling in a minutes. With modern and simple interface you will be up and running in no-time. Discounts & promotions Keep your loyal customers. With our loyalty module, you can schedule promotions and automatically apply discounts to selected items. Support Have a question? We are here to help. Jump directly to our help center, or drop us a line, send suggestion, or just say Hi! Help is just an email away! Made for Windows Turn your PC into a functional Point of Sale. Worldwide Used in more than 40 countries every day. Is Aronium POS free? Yes it is. You can use free Aronium version as long as you like. There are no obligations or hidden costs. However, keep in mind that Aronium is a "freemium" product, meaning that there is a free version, and other paid versions or extensions offered as more advanced alternative.
    Downloads: 119 This Week
    Last Update:
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  • 8
    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 of a web shop.
    Downloads: 24 This Week
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  • 9
    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 completely free and open source professional invoicing solution. Make the smart choice for managing your budding business's transactions with Crater.
    Downloads: 2 This Week
    Last Update:
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  • 10
    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 payments through Paypal and credit card, Freshbooks and Quickbooks data importing and more. It also supports several different languages as well as currencies.
    Downloads: 2 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 all testing is done using v3.2. The current version utilises standard Cobol files, be they sequential or indexed. The beta version, offers additional support for Mysql and Mariadb. This is available as v3.3 and as a nightly build direct from the lead programmer.
    Downloads: 7 This Week
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  • 12
    JDavide
    JDavide (per gli amici JD) è un software gratuito per la gestione dello Studio Legale che aiuta l’avvocato nell’espletamento delle operazioni quotidiane. Funzionalità: pratiche, agenda, formulario, atti, parcellazione, rivalutazione, ecc.
    Downloads: 8 This Week
    Last Update:
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  • 13
    jBilling

    jBilling

    jBilling is a web-based enterprise billing system.

    jBilling is a web-based enterprise billing and rating system. It manages your subscribers with automatic invoicing (email and PDF) and payment processing (credit cards, checks, direct deposit). Robust, well documented and easy to use!
    Downloads: 2 This Week
    Last Update:
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  • 14
    Στρατιωτικές Δαπάνες
    Το πρόγραμμα «Στρατιωτικές Δαπάνες» δημιουργήθηκε προκειμένου να συντάσσονται αυτόματα όλα τα δικαιολογητικά των δαπανών, να αποφεύγονται τα λάθη και να μειώνεται ο χρόνος συντάξεως της δαπάνης. Τα εξαγόμενα δικαιολογητικά σώζονται από το πρόγραμμα σε αρχεία κειμένου, τα οποία ανοίγουν από οποιοδήποτε επεξεργαστή κειμένου (για εκτύπωση ή περεταίρω επεξεργασία). Ένας έμπειρος χρήστης, χρειάζεται για να καταχωρήσει όλα τα στοιχεία στο πρόγραμμα τουλάχιστον 2 και το πολύ 10 λεπτά.
    Downloads: 3 This Week
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  • 15
    QRK Registrier Kasse

    QRK Registrier Kasse

    QRK Registrierkassen Software für kleine Betriebe.

    QRK Registrierkassen Software (Cash Register) für kleine Betriebe. Speziell für Österreichisches Gesetz (RKV geeignet) QRK ist ideal für alle Dienstleistungsunternehmen, die bislang mit Honorarnoten/Rechnungen oder Rechnungsblock mit Durchschrift (Paragon) arbeiten und eine einfache Kassenlösung suchen. Schnittstelle für Fibu und Rechnungsprogramme vorhanden. (Zb. Fakturama)
    Downloads: 4 This Week
    Last Update:
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  • 16
    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 site: http://tems.sourceforge.net Play with it from your browser to find out if it will fulfill your requirements, before downloading it.
    Downloads: 1 This Week
    Last Update:
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  • 17
    AccountLab Plus
    AccountLab Plus is the affordable billing solution for webhosters. Easy, flexible, powerful, integrates exclusive features and techniques. Due to the innovative coding design, you will not lose your modifications when you upgrade.
    Downloads: 1 This Week
    Last Update:
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  • 18
    gBilling is a Internet Cafe Billing System consists of Server and Client, gBilling is especially made in Indonesian Language, run in Linux and Windows, written in C and GTK2.
    Downloads: 1 This Week
    Last Update:
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  • 19
    ECK Hotel

    ECK Hotel

    Simple Aplikasi Hotel Management System

    Downloads: 5 This Week
    Last Update:
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  • 20
    eEÜR mini Buchhaltung mit LibreOffice

    eEÜR mini Buchhaltung mit LibreOffice

    eEÜR Version 1.10.3 Januar 2017

    Mini-Buchhaltung mit LibreOffice oder OpenOffice.org. Version 1.10.3 vom 9. Januar 2017 ACHTUNG: Aufgrund eines Bugs in LibreOffice Version 4.1.2 läuft das Programm nicht in dieser Version. Bis Version 4.0.1.2 funktioniert es und dann wieder an 4.1.3. Angebotserstellung, Rechnungserstellung, Lager und Kundenverwaltung, sowie Buchhaltung mit Einnahmen-Überschuß-Rechnung in einer einzigen ODS-Datei. Angebote können in Rechnungen übernommen werden. Es sind 2 Steuersätze (und 0%) in einer Rechnug möglich. Durch Verwendung der Tabellenkalkulation hat der Anwender immer die Möglichkeit seine Daten direkt zu überprüfen. Eine Portierung von Linux nach Windows oder umgekehrt ist ebenso möglich wie die Verwendung eines USB-Speichers und unterschiedlichster Rechner. (Desktop, Laptop Tablet). Die Anwendung im Netzwerk (kein multiuser) ist ebenfalls möglich.
    Downloads: 3 This Week
    Last Update:
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  • 21
    Cyber Manager
    Cyber Manager (v1.0) is a "Free for All" open source web application designed and developed for cyber cafe managers built with an aim to help them in managing their cyber cafe in a much efficient and better and smoother way.
    Downloads: 1 This Week
    Last Update:
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  • 22
    Faktura2018

    Faktura2018

    Erstellt für Sie Angebote/Rechnungen/Mahnungen und mehr

    Faktura 2018 bietet Ihnen die Möglichkeit, innerhalb kurzer Zeit und ohne großen Schulungsaufwand, Angebote, Lieferscheine und Rechnungen zu erstellen. Die Rechnungen können als Einnahmen verbucht und Fremdrechnungen als Ausgaben erfasst werden. Das Programm erzeugt Ihnen zudem auch Listen für den Steuerberater: E/A-Rechnung, Kontenlisten, Umsatzsteuerlisten, u.a.
    Downloads: 1 This Week
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  • 23
    BLacK PeaRL Billing adalah software untuk menghitung waktu/biaya pemakaian pada rental komputer atau pun warnet. memiliki beberapa fasilitas seperti , Personal, Pelajar, Game, Mengetik, Member dan paket.
    Downloads: 0 This Week
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  • 24
    Du hast beispielsweise einen Online Shop und möchtest deine Bestellungen direkt abspeichern und sie jederzeit abrufen? Diese Bestellungs App (kompatibel mit Linux, Mac und Windows) gibt dir die Möglichkeit deine Bestellungen abzuspeichern, eine Rechnung zu hinterlegen und den aktuellen Status der Bestellung zu bestimmen. Neu hinzugefügt: Die Möglichkeit an beliebige Nutzer wo ein Kontakt (Email) hinterlegt wurde eine Mail zu senden. Ebenfalls an alle gleichzeitig. Voraussetzung dafür ist lediglich ein Mail Programm eingerichtet zu haben. Die Bestellungs App öffnet das Standart Email Programm dass dem jeweiligen Betriebssystem hinterlegt wurde :) Ich würde mich nach Kauf gerne über dein Feedback freuen. Bei Bugs oder Kritik bitte jederzeit kontaktieren: janis@yunox.eu Für die Installation der App wird Java benötigt
    Downloads: 0 This Week
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  • 25
    BurlyCRM
    BurlyCRM is a customer relationship management tool designed to aid burlesque performers and producers to effectivly manage their business and have access to important business information anywhere they will have internet access.
    Downloads: 0 This Week
    Last Update:
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