Showing 252 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: 35 This Week
    Last Update:
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  • 2
    Invoice Plane

    Invoice Plane

    A self-hosted open source application for managing your invoices

    InvoicePlane is an open-source invoicing and client management system designed for small businesses and freelancers. It enables users to create, send, and manage invoices and quotes efficiently. The system supports multiple languages, currencies, and tax rates, making it suitable for global use. InvoicePlane also provides detailed financial reporting and client management features.
    Downloads: 2 This Week
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  • 3
    Laravel Invoices

    Laravel Invoices

    Laravel package to generate PDF invoices from customizable parameters

    ...Developers can define invoice buyers, sellers, items, totals, notes, and other invoice details in code. Its main value is making professional PDF invoice generation easier to add to Laravel applications.
    Downloads: 0 This Week
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  • 4
    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: 66 This Week
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  • 5
    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: 13 This Week
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  • 6
    Pejota

    Pejota

    The ERP and CRM, multi language, for freelancers

    PeJota is a Freelancer/solo entrepreneur‑focused ERP/CRM built on PHP/Laravel with FilamentPHP UI. It includes client/project/contracts/tasks/timesheets and invoice management in a lightweight monolithic app, ideal for multilingual SMB use.
    Downloads: 0 This Week
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  • 7
    Kaneo

    Kaneo

    An open source project management platform

    Kaneo is a lightweight invoicing and client management tool for freelancers and small businesses. Built as a modern, self-hosted solution, Kaneo helps users generate invoices, track payments, and manage clients from a user-friendly dashboard. It's especially useful for independent workers who prefer local control over SaaS options.
    Downloads: 1 This Week
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  • 8
    Stripe.net

    Stripe.net

    Stripe.net is a sync/async .NET 4.6.1+ client

    A .NET library to facilitate Stripe payment integration, supporting a full range of payment and subscription features for .NET applications.
    Downloads: 0 This Week
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  • 9
    WP Project Manager

    WP Project Manager

    The Project Management plugin for WordPress

    WP Project Manager is a WordPress-based project management plugin that offers tasks, to‑do lists, milestones, Kanban boards, time tracking, Gantt charts, and integrations. It's suitable for teams working within WordPress wanting self-hosted task management closely integrated with their site CMS.
    Downloads: 2 This Week
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  • 10
    TimeTracker

    TimeTracker

    Open-source and free to self-host

    TimeTracker by DRYTRIX is a comprehensive self-hosted time tracking and project management application that helps individuals, teams, and small businesses take control of their productivity and billing. Built on a modern web stack (Python/Flask backend with a responsive frontend), TimeTracker enables users to track hours, manage projects and clients, visualize data with interactive charts, and even generate professional invoices directly from tracked time. It embraces privacy and flexibility...
    Downloads: 36 This Week
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  • 11
    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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  • 12
    AdminLTE

    AdminLTE

    Free admin dashboard template based on Bootstrap 4

    ...Built on top of Bootstrap, AdminLTE provides a range of responsive, reusable, and commonly used components. Mobile first design. Fits many resolutions, from large desktops to small mobile devices. Support for printing any page. The invoice page makes a perfect example. Choose a skin that matches your branding or edit the LESS variables to create your own.
    Downloads: 42 This Week
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  • 13
    FOSSBilling

    FOSSBilling

    Empower your hosting business with FOSSBilling

    FOSSBilling is a free and open-source billing and client management solution tailored for online services businesses, particularly those in the web hosting space. It delivers a suite of tools that automate the creation and delivery of invoices, track payments, manage customer accounts, and handle service provisioning, all from a centralized web interface. Because it’s self-hosted and licensed under the Apache 2.0 license, organizations have full control over their data and can customize or...
    Downloads: 5 This Week
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  • 14
    Lago

    Lago

    Open Source Metering and Usage Based Billing API

    Lago offers a self-hosted and cloud, scalable and modular architecture for metering and usage-based billing, at every stage of your company. Ingest up to 15,000 billing events per second. Lago’s event-based architecture provides a solid foundation for building a fair pricing model that scales with your business. Lago supports all pricing models. Create pay-as-you-go and hybrid plans in no time with our intuitive user interface or API. Create engaging marketing campaigns and increase...
    Downloads: 6 This Week
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  • 15
    Laravel Cashier

    Laravel Cashier

    Laravel Cashier provides an expressive, fluent interface to Stripe

    ...In addition to basic subscription management, Cashier can handle coupons, swapping subscriptions, subscription "quantities", cancellation grace periods, and even generate invoice PDFs.
    Downloads: 0 This Week
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  • 16
    InvoicePrinter

    InvoicePrinter

    Super simple PDF invoicing

    Super simple PDF invoicing. InvoicePrinter is a server, command line program and pure Ruby library to generate PDF invoices in no time. You can use Ruby or JSON as the invoice representation to build the final PDF.
    Downloads: 0 This Week
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  • 17
    Node.js Telegram Bot API

    Node.js Telegram Bot API

    Telegram Bot API for NodeJS

    ...Depending on the properties of the Message, one of these events may ALSO be emitted, text, audio, document, photo, sticker, video, voice, contact, location, new_chat_members, left_chat_member, new_chat_title, new_chat_photo, delete_chat_photo, group_chat_created, game, pinned_message, poll, dice, migrate_from_chat_id, migrate_to_chat_id, channel_chat_created, supergroup_chat_created, successful_payment, invoice, video_note, etc. Its much better to listen a specific event rather than on message in order to stay safe from the content. Bot must be enabled on inline mode for receive some messages.T elegram only supports HTTPS connections to WebHooks. Therefore, in order to set a WebHook, you will need a SSL certificate. The library makes it easy to get started sending files. ...
    Downloads: 5 This Week
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  • 18
    QuestPDF

    QuestPDF

    A library that can help you with generating PDF documents

    ...QuestPDF is a progressive library that can help you with generating PDF documents in your .NET application by offering a friendly, discoverable and predictable C# fluent API. Do you believe that creating a complete invoice document can take less than 200 lines of code? We have prepared for you a step-by-step instruction that shows every detail of this implementation and describes the best patterns and practices. This library is created specifically for designing and arranging document layouts, with full paging support. Alternative solutions, such as HTML-based converters, are not designed for this purpose and therefore are often unpredictable and do not produce desired results.
    Downloads: 4 This Week
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  • 19

    Accounting lite

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

    Downloads: 1 This Week
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  • 20
    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: 79 This Week
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  • 21
    Apache OpenOffice Templates

    Apache OpenOffice Templates

    Thousands of ready to use Apache OpenOffice templates

    The official catalog of Apache OpenOffice templates. You'll find templates ranging from letters and résumés to calendars and brochures. Templates can save your time, and are easy to use.
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    Downloads: 6,602 This Week
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  • 22

    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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  • 23
    ...No data leaving my PC. So I built it with Qwen2.5 1.5B running locally via llama.cpp. The AI runs entirely on your CPU — no API calls, no cloud, no privacy trade-offs. It reads the invoice, extracts the data, stores it in a local SQLite database, and you can chat with it later ("what did I spend on soft
    Downloads: 1 This Week
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  • 24
    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: 181 This Week
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  • 25

    voltiva

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

    Downloads: 1 This Week
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