Showing 75 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
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  • 2
    Quba

    Quba

    Quba is a viewer for electronic invoices

    ...Users can import existing PDF invoices and enter the information required to generate compliant electronic invoices. The software also examines received invoices and identifies potential validation errors. It displays invoice details in a readable format alongside the original PDF and underlying XML. Validation can be performed offline using the Mustang Project libraries. Available for Windows, macOS, and Linux, Quba Viewer helps small businesses and accounting professionals manage standardized electronic invoicing.
    Downloads: 0 This Week
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  • 3
    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
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  • 4
    Kimai

    Kimai

    Kimai is a web-based multi-user time-tracking application

    Kimai is an open-source time-tracking solution. It tracks work time and prints out a summary of your activities on demand. Yearly, monthly, daily, by the customer, by the project. Its simplicity is its strength. Due to Kimai’s browser-based interface, it runs cross-platform, even on your mobile device. With Kimai, the boring process of feeding Excel spreadsheets with your working hours is not only simplified, it also offers dozens of other exciting features that you don't even know you're...
    Downloads: 10 This Week
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  • 5
    Τιμολόγιο ΕΔ

    Τιμολόγιο ΕΔ

    Τιμολόγιο δαπάνης Ενόπλων Δυνάμεων

    Υπολογίζει τα στοιχεία ενός τιμολογίου δαπάνης Ενόπλων Δυνάμεων με βάση τα δεδομένα που είναι το ποσό (καθαρής αξίας, πληρωτέου ή καταλογιστέου) καθώς και τα ποσοστά ΦΠΑ, ΦΕ και κρατήσεων. Για κάποιον που δεν είναι εξοικειωμένος με τα ποσοστά ΦΕ και κρατήσεων, υπάρχει οδηγός που τα ρυθμίζει αυτόματα, με βάση κάποιες απλές ερωτήσεις.
    Downloads: 0 This Week
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  • 6

    Accounting lite

    An accounting program (not released) and a released invoice program.

    Downloads: 1 This Week
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  • 7
    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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  • 8

    vergifac

    Billing software Logiciel de Facturation

    Vergifac captures, archive and print invoice type documents (quotes, orders, etc.). The final document is saved in a PDF file format universally used which has the advantage of being printed as such by all printers and to be easily attached to an email. Document layout is fully customizable. The program includes a management client or third parties' as well as management 'products or services' storing the information necessary for easy billing.
    Downloads: 3 This Week
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  • 9
    Group Office groupware and CRM

    Group Office groupware and CRM

    Take your office and CRM into the cloud!

    ...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. ...
    Downloads: 163 This Week
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  • 10

    Dolibarr timesheet

    Timesheet module for dolibarr

    Module to enable a Timesheet view for project in Dolibarr Dolibarr on Sourceforge : https://sourceforge.net/projects/dolibarr/
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    Downloads: 4 This Week
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  • 11
    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...
    Downloads: 50 This Week
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  • 12
    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
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  • 13
    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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  • 14

    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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  • 15
    BUS Core

    BUS Core

    Local-first manufacturing operations software for small shops.

    BUS Core is free, open-source manufacturing operations software for small shops that need stronger records without enterprise ERP overhead. It connects inventory, materials, recipes, production runs, jobs, invoices, vendors, and actual cost in one local operating record. Self-managed BUS Core runs locally on Windows or through Docker, uses portable SQLite data, requires no hosted account or subscription, and remains usable without a required cloud connection. It supports FIFO batch costing,...
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    Downloads: 2 This Week
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  • 16
    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
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  • 17
    Custom Billing Server

    Custom Billing Server

    Linux-Based Billing And Business Application Server For FREE use.

    Do you offer services or tangible products that can not be scanned for invoicing? Are you still creating your invoices and quotes on paper, or via Word/Excel etc? They say in business that, TIME IS MONEY! So why spend a lot of time creating invoices or estimates, when you can use a suitable tool to manage your clients, products, services or subscriptions, create professional-looking invoices or estimates, and print or email them within seconds? The Custom Billing Server includes...
    Downloads: 2 This Week
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  • 18
    Kimai - Time Tracking Software

    Kimai - Time Tracking Software

    Time-Tracking for companies and teams with up to 250+ users

    Kimai is web based software that tracks work time, and classifies it. It tracks time and prints out a summary of your activities on demand. Yearly, monthly, daily, by customer, by project, by action. FETCH THE LATEST DOWNLOAD FROM GITHUB: https://github.com/kimai/kimai/releases Record expenses and print customizable invoices in different formats. For further information visit: - https://www.kimai.org - https://www.kimai.cloud - https://github.com/kimai/kimai
    Downloads: 3 This Week
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  • 19

    SalesOrders

    Creates Invoice & Quotation for Customers

    This is a customized software specifically developed for small businesses (for B2B). This is useful to generate Invoices/Quotations for customers on a weekly/daily basis. It uses Microsoft excel to use as Master database and creates invoices in excel workbook.
    Downloads: 0 This Week
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  • 20
    Vali Admin

    Vali Admin

    Free Bootstrap 4 admin/dashboard template

    Vali is a free, modular and easy-to-customize admin theme built using Bootstrap 4, SASS and Pug.js. Includes seven pre-built pages including login, user profile, and print-friendly invoice page. Run a npm install command in the project root directory to install and build dependencies. If you don't want to edit the theme you can use the compiled files inside the docs folder. Use npm run dev command to watch and compile source files. Use npm run build command to compile all source files. Use npm run start command to start a development server using NodeJs. ...
    Downloads: 1 This Week
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  • 21
    Downloads: 0 This Week
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  • 22
    Downloads: 0 This Week
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  • 23
    Open Source ERP
    ...Be it at home with your home computer (Windows, Linux, MAC OS X), or traveling with your smart phone (iPhone, iPad, Android), or in the office, the data is always at hand. Webdav interface and Active Sync for synchronizing contacts and time management. In addition to customer, order, invoice management, etc... the ERP has a complete warehouse management including a order management for material in the warehouse.
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    Downloads: 12 This Week
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  • 24
    InvoiceCreator
    The software "Invoice Creator" is a user-friendly application that allows you to create professional invoices in just one minute and output them as a PDF file. With this software, you can save time and effort by automating the process of invoice creation. "Invoice Creator" is available for Windows, Linux, and MacOS operating systems and can be seamlessly installed and used on any of these operating systems.
    Downloads: 0 This Week
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  • 25

    Libertya EI (moved)

    Libertya Electronic Invoice

    Source code for this project has been migrated to GitHub https://github.com/Disytel-Consulting-SA/lyei
    Downloads: 0 This Week
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