Showing 116 open source projects for "billing system"

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  • 1
    Meteroid

    Meteroid

    Open-source pricing and billing infrastructure

    ...The system is written in Rust, emphasizing performance, reliability, and safety, making it suitable for production use in small startups up to large enterprises. Meteroid handles complexities like plan versioning, usage-based billing, re-invoicing, grandfathering of plans, experiments, and cost limiting — giving teams a robust billing backend without building one from scratch.
    Downloads: 5 This Week
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  • 2
    OpenMeter

    OpenMeter

    Metering and Billing for AI, API and DevOps

    OpenMeter is an open-source metering and billing platform designed to collect, aggregate, and analyze usage events from APIs, cloud infrastructure, and software services in real time, enabling flexible usage-based billing for SaaS, AI, and DevOps offerings. It supports high-scale event ingestion and deduplication to accurately record how customers consume billable resources such as API calls, compute time, or storage, and then correlates that usage with payment systems and billing plans to automate invoicing and revenue recognition. ...
    Downloads: 2 This Week
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  • 3
    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 extend the system to fit unique workflows or branding requirements. ...
    Downloads: 2 This Week
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  • 4
    Dolibarr

    Dolibarr

    Dolibarr ERP CRM is a modern software package to manage your company

    Dolibarr is an open-source ERP (Enterprise Resource Planning) and CRM (Customer Relationship Management) software designed for small to medium-sized businesses. It includes a suite of features for managing a company’s operations, including invoicing, project management, inventory, and HR. Dolibarr is highly modular, meaning users can activate only the features they need, making it scalable and adaptable for different business models.
    Downloads: 29 This Week
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  • 5
    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,...
    Downloads: 10 This Week
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  • 6
    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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  • 7
    Custom Billing Server

    Custom Billing Server

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

    ...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 15 open source FREE business applications as a bonus, and a customer loyalty and referral program to boost your sales while securely hosting your business data locally, and offline if desired. This system can be used from a virtual machine, HDD installation, or a bootable USB drive. File name = cbs-sfp_v26.09.iso MD5 = 8136e8cb5815aeccd8fb4398ebf0ab89 SHA1 = c190ffe74d624b6a2554a280082c709daf634790 Videos tutorials are in compressed zip files, or via: https://www.youtube.com/@apps-and-sec
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    Downloads: 1 This Week
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  • 8
    SSPanel-UIM

    SSPanel-UIM

    Multi-purpose proxy service management system

    SSPanel-UIM is a web interface and management platform for Shadowsocks (a secure SOCKS5 proxy tool often used to circumvent censorship). It supports multi-tenant accounts, traffic quotas, node management, coupon systems, invite codes, and payment gateways integration (for example, Stripe, PayPal, etc.). The platform includes features like user dashboards, usage graphs, IP/device logging, and automatic coupon or traffic renewal logic. Administrators can configure SSR/V2Ray or other proxy...
    Downloads: 1 This Week
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  • 9
    OpenEMR
    OpenEMR is an open source medical practice management application (EHR EMR PMS) featuring fully integrated electronic health records, scheduling, electronic billing, internationalization, free support, a vibrant community, and a whole lot more.
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    Downloads: 276 This Week
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  • 10

    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: 4 This Week
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  • 11
    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. OpenClinic GA and OpenClinic GMAO are owned by Frank Verbeke, MD, PhD at Post-Factum BV (https://www.post-factum.be)
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    Downloads: 174 This Week
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  • 12
    Stansoft

    Stansoft

    Accounting, invoicing, inventory and payroll software for Linux

    Stansoft is a Linux financial accounting software system for business. It is designed for data entry efficiency with an ncurses text-based terminal user interface. Developed using Aubit4GL / Informix 4GL with a PostgreSQL or Informix database engine. Demonstration videos can be found on the YouTube channel at https://www.youtube.com/@standardsoftware.
    Downloads: 6 This Week
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  • 13

    Vetsoft Office

    Software für die Tierarztpraxis - PMS - Praxismanagementsystem

    Es handelt sich um Software für eine deutschsprachige Tierarztpraxis. Aktuell ist das Repository vs26 --> https://sourceforge.net/p/vetsoft/vs26/ci/main/tree/INSTALL.md . Das Projekt wurde überarbeitet, gehärtet und modernisiert. Neu ist die Möglichkeit, E-Rechnungen zu stellen und mit Beispieldaten zu arbeiten. So lässt sich die Bedienung komplett in einer eigenen Datenbank leicht völlig getrennt vom produktiven System erlernen und testen. Weiteren Support erhalten Sie unter vetsoft.de .
    Downloads: 0 This Week
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  • 14

    HAIP — Hotel AI Platform

    Open-source self-hosted hotel PMS. Apache 2.0, no per-room fees.

    HAIP is a complete, self-hosted hotel Property Management System, released under Apache 2.0. Hotels normally pay $10-30 per room per month for closed platforms that keep their own operational data behind a thin API. HAIP is the alternative: reservations, folio and billing, rate plans with LOS and CTA restrictions, housekeeping, night audit, accounting and cashiering, channel distribution, and a commission-free direct booking engine so a property keeps the 15-25% an OTA would take. ...
    Downloads: 2 This Week
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  • 15
    NeoBill
    NeoBill is a web-based Customer Management and Billing solution designed for small & medium business. It is developed in PHP, uses MySQL as the backend database, and is licensed under the GPL.
    Downloads: 0 This Week
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  • 16
    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. Default Login: Username: admin Password: admin You will be prompted to change the password on first login.
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    Downloads: 57 This Week
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  • 17
    openQRM - Cloud Computing Platform

    openQRM - Cloud Computing Platform

    Get latest Edition here: http://www.openqrm-enterprise.com.

    openQRM is a web-based open source datacenter management and hybrid cloud computing platform that integrates flexibly with existing components in enterprise data centers. Releases available at https://github.com/openQRM/openqrm-community. Please visit http://www.openqrm-enterprise.com for latest 5.3 free Community Release. Includes important security updates, bugfixes and enhancements especially for KVM and Cloud plugin. openQRM abstracts Virtualization and supports the following...
    Downloads: 33 This Week
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  • 18
    MyCompany ERP

    MyCompany ERP

    Open-source ERP & CRM for small business — self-hosted, no user fees

    MyCompany is a free, open-source ERP and CRM for small and medium businesses. It combines inventory, invoicing, manufacturing, sales, purchasing, project management, HR and retail POS in one system with a single database. It runs self-hosted on your own server (Linux, Windows or Docker) with no per-user fees or feature limits. Built on the open-source lsFusion platform (Java + PostgreSQL), it can be customized from small field-level tweaks to entirely new modules. Development happens on...
    Downloads: 8 This Week
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  • 19
    IzzySales: Free Sales Management System

    IzzySales: Free Sales Management System

    IzzySales is a free web application to manage Sales, Orders, Stock

    IzzySales, released as BETA, is a free web application built with PHP, MySQL, Bootstrap and Ajax. It is a light-weight application, very easy to use with minimum technical complexity. It can be installed on Web Servers as well as local computers that support PHP and MySQL. It can be used by retail outlets, online sellers, offline sellers, small business or anyone who wants quick and neat way to record sales, orders and stock data. For details, customization, upgrade reach me on linked in...
    Downloads: 1 This Week
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  • 20
    Crane

    Crane

    Crane is a FinOps Platform for Cloud Resource Analytics and Economics

    Crane is a FinOps Platform for Cloud Resource Analytics and Economics in Kubernetes clusters. The goal is not only to help users to manage cloud cost easily but also to ensure the quality of applications.
    Downloads: 8 This Week
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  • 21
    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. With this cross-platform support, you can take advantage of this software...
    Downloads: 0 This Week
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  • 22
    FormaVid

    FormaVid

    Small Business Appliance

    The FormaVid Small Business Appliance https://formavid.org is designed to integrate a content management system (CMS), an issues tracker and an invoicing application into a single, well constructed, offering. It is an excellent starting point for any developer(s) wishing to support the CMS or any of the other components, including the appliance itself. All components are stable, open source and well supported. The appliance is built using scripts so no hidden "monkey business" and you can...
    Downloads: 3 This Week
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  • 23
    qdPM - Web-Based Project Management Tool
    qdPM is a free web-based project management tool suitable for a small team working on multiple projects. It is fully configurable. You can easy manage Projects, Tasks and People. Customers interact using a Ticket System that is integrated into Tasks. Compatible with php 7.2+ and php 8.0+
    Downloads: 14 This Week
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  • 24
    radwebhosting-blesta

    radwebhosting-blesta

    Domains Reseller module for Blesta to integrate API functionality

    Domains Reseller module for Blesta integrates Domain API functionality directly into remote Blesta billing software installation. The purpose of this module is to enable automated registration, transfer, renewal, and management of domain name registrations. A Rad Web Hosting Domain Reseller account is required. Gain access to the Domain API interface by signing up for a free Domain Reseller account.
    Downloads: 0 This Week
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  • 25

    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...
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    Downloads: 59 This Week
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