Showing 532 open source projects for "billing"

View related business solutions
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • Picsart Enterprise Background Removal API for Stunning eCommerce Visuals Icon
    Picsart Enterprise Background Removal API for Stunning eCommerce Visuals

    Instantly remove the background from your images in just one click.

    With our Remove Background API tool, you can access the transformative capabilities of automation , which will allow you to turn any photo asset into compelling product imagery. With elevated visuals quality on your digital platforms, you can captivate your audience, and therefore achieve higher engagement and sales.
    Learn More
  • 1

    Offline Medical Billing Software Free

    Offline Medical Billing Software to Print Your Medical Bill

    Streamline your medical billing procedures effortlessly with our Free Offline Medical Billing Software. Designed to cater to the unique needs of healthcare providers, this software offers comprehensive features without the hassle of constant internet connectivity. Efficiently manage patient billing information, insurance claims, and invoicing without worrying about online interruptions. Our user-friendly interface makes it easy for medical professionals and administrative staff to navigate...
    Downloads: 17 This Week
    Last Update:
    See Project
  • 2
    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...
    Downloads: 16 This Week
    Last Update:
    See Project
  • 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,...
    Downloads: 17 This Week
    Last Update:
    See Project
  • 4
    Ever Gauzy

    Ever Gauzy

    Open Business Management Platform

    Ever Gauzy is an open-source business management platform that includes time tracking, human resource management, project monitoring, and productivity analytics. It’s designed for remote teams and enterprises looking to streamline operations while keeping full control over their data. Gauzy supports both cloud and self-hosted deployment options.
    Downloads: 14 This Week
    Last Update:
    See Project
  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
    Start Free
  • 5
    billing-animal-hospital

    billing-animal-hospital

    Demo Invoicing APP for Veterinarian Medical Office

    This is an sample Invoicing program written in vba and MS-Access. It is for a small, or personal, Vets Medical Office. It should give you practice in learning/use of Invoicing, and installing on the desktop, and programming in vba and MS-Access. Note that the free MS-Access Runtime is with the download . You need MS-Access if you want to work with the program code (part of Office 365). The program processes Invoicing, Appointments, and Quotes, and produces reports for A/R, Inventory,...
    Downloads: 3 This Week
    Last Update:
    See Project
  • 6
    Laravel Cashier

    Laravel Cashier

    Laravel Cashier provides an expressive, fluent interface to Stripe

    Laravel Cashier provides an expressive, fluent interface to Stripe's subscription billing services. It handles almost all of the boilerplate subscription billing code you are dreading writing. In addition to basic subscription management, Cashier can handle coupons, swapping subscriptions, subscription "quantities", cancellation grace periods, and even generate invoice PDFs.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 7
    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 conversion...
    Downloads: 4 This Week
    Last Update:
    See Project
  • 8
    Stripe Sync Engine

    Stripe Sync Engine

    Sync your Stripe account to you Postgres database

    stripe-sync-engine is a tool by Supabase that continuously syncs Stripe data into a Postgres database using webhooks. It ensures that billing-related Stripe objects like customers, subscriptions, and invoices are always up to date in your local database. This makes it easy to run analytics, reporting, or custom business logic using SQL without hitting Stripe’s API repeatedly.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 9
    OpenCost

    OpenCost

    Cost monitoring for Kubernetes workloads and cloud costs

    OpenCost is a vendor-neutral open-source project for measuring and allocating cloud infrastructure and container costs in real-time. Built by Kubernetes experts and supported by Kubernetes practitioners, OpenCost shines a light into the black box of Kubernetes spending. Flexible, customizable cost allocation and cloud resource monitoring for accurate showback, chargeback, and ongoing reporting. Dynamic asset pricing, through integrations with AWS, Azure, and GCP billing APIs as well as support...
    Downloads: 7 This Week
    Last Update:
    See Project
  • Powering the best of the internet | Fastly Icon
    Powering the best of the internet | Fastly

    Fastly's edge cloud platform delivers faster, safer, and more scalable sites and apps to customers.

    Ensure your websites, applications and services can effortlessly handle the demands of your users with Fastly. Fastly’s portfolio is designed to be highly performant, personalized and secure while seamlessly scaling to support your growth.
    Try for free
  • 10
    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...
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    Stripe Ruby Library

    Stripe Ruby Library

    Ruby library for the Stripe API

    A Ruby library that enables developers to integrate Stripe’s payment gateway into Ruby applications, streamlining billing, payments, and customer management.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 12
    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: 6 This Week
    Last Update:
    See Project
  • 13
    Payum

    Payum

    PHP Payment processing library

    Payum is a PHP payment processing library that abstracts and unifies payment gateway integrations across different services like PayPal, Stripe, and Authorize.Net. It offers a modular architecture that supports various gateways and payment flows including recurring payments, tokenized sessions, and secure callbacks. Payum is ideal for developers building custom e-commerce or billing solutions with multiple payment options.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 14
    RevenueCat

    RevenueCat

    In-app purchases and subscriptions made easy

    RevenueCat is a powerful, reliable, and free-to-use in-app purchase server with cross-platform support. Our open-source framework provides a backend and a wrapper around StoreKit and Google Play Billing to make implementing in-app purchases and subscriptions easy. Send enriched purchase events to analytics and attribution tools with our easy integrations. Fetch products, make purchases, and check subscription status with our native SDKs. Host and configure products remotely from our dashboard...
    Downloads: 5 This Week
    Last Update:
    See Project
  • 15
    next-forge

    next-forge

    Production-grade Turborepo template for Next.js apps

    A mono repo template designed to have everything you need to build your new SaaS app as quickly as possible. Authentication, billing, analytics, SEO, database ORM and more. Create and preview email templates with a React-based email library. A twblocks website template with a type-safe blog, bulletproof SEO, and legal pages, powered by Content Collections. Simple, beautiful out of the box, and easy-to-maintain documentation. Use Prisma Studio to visualize your database, and generate Prisma...
    Downloads: 3 This Week
    Last Update:
    See Project
  • 16
    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
    Last Update:
    See Project
  • 17
    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: 1 This Week
    Last Update:
    See Project
  • 18
    braintree_ios

    braintree_ios

    Braintree SDK for iOS

    Braintree iOS is a comprehensive mobile payment SDK that allows developers to integrate secure payments into iOS apps. It supports credit cards, PayPal, Apple Pay, and other popular payment methods, providing a seamless checkout experience. The SDK emphasizes security, ease of integration, and compliance with industry standards.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Flexprice

    Flexprice

    Usage-based pricing and billing for developers

    Flexprice is an open-source dynamic pricing engine designed to help online businesses and marketplaces automate and optimize their pricing strategies. It allows developers and data scientists to experiment with pricing algorithms using real-time market data, inventory levels, and historical sales to maximize revenue, conversion, or competitiveness. Built with flexibility in mind, Flexprice can be integrated into existing e-commerce infrastructure via APIs and supports simulation and A/B...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Ptah.sh

    Ptah.sh

    Self-hosted alternative to Heroku

    Ptah.sh is a Fair Source self-hosting deployment platform - an alternative to Heroku/Vercel and other Big Corp software. We believe that indie, startups, and small to medium businesses must not suffer from unpredicted billing or bare-metal/VPS configurations. Designed for indie developers and SMBs, Ptah.sh offers the simplest hosting experience.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    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: 0 This Week
    Last Update:
    See Project
  • 22
    ABillS (~AsmodeuS~ Billing System)

    ABillS (~AsmodeuS~ Billing System)

    Triplay ISP billing system internet voip iptv hotspot

    ABillS - ISP Billing System with different abilities. IPoE,PPPoE, PPTP, L2TP, IPSec,OpenVPN (Cisco, Junipex MX, ZTE, accel-ppp, mikrotik) Support RADIUS (Freeradius) PON (BDCOM,ZTE,C-Data,Huawai,V-Solutions,Stels) CRM for ISP, Callcenter, NetFlow, Monitoring, VoIP (GNU gatekeeper, Asterisk), IPTV, Hotspot (Mikrotik, DD-wrt), SNMP Monitoring (D-Link, Cisco), Help Desk, Mail management (Postfix, Spamassassin, Courier IMAP/POP). Multilanguage
    Leader badge
    Downloads: 34 This Week
    Last Update:
    See Project
  • 23
    OpenaiBot

    OpenaiBot

    Refractoring ChatBot+LLM, Gpt-3.5-turbo, ChatGPT Bot/Voice Assistant

    If you don't have the instant messaging platform you need or you want to develop a new application, you are welcome to contribute to this repository. You can develop a new Controller by using Event.py. Compatibility with multiple LLMs and integration with GPT and third-party systems is handled by our llm-kira project on GitHub. It can accurately limit billing, with limits and ID binding. Supports asynchronous operations and can handle multiple requests simultaneously. Allows for private...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    php-billing-app

    php-billing-app

    A basic PHP/MySQL/HTML Billing APP. Meant for developers learning.

    Here is PHP/MySQL/HTML code that is a sample Entry Level Billing APP. It is Free, and mostly for learning purposes. You can install on a Windows or linux server, and look at the PHP code files on your PC.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    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.
    Leader badge
    Downloads: 840 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next
Want the latest updates on software, tech news, and AI?
Get latest updates about software, tech news, and AI from SourceForge directly in your inbox once a month.