C Billing Software

View 719 business solutions
Billing C Clear Filters

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

  • 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
  • Find Hidden Risks in Windows Task Scheduler Icon
    Find Hidden Risks in Windows Task Scheduler

    Free diagnostic script reveals configuration issues, error patterns, and security risks. Instant HTML report.

    Windows Task Scheduler might be hiding critical failures. Download the free JAMS diagnostic tool to uncover problems before they impact production—get a color-coded risk report with clear remediation steps in minutes.
    Download Free Tool
  • 1
    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: 3 This Week
    Last Update:
    See Project
  • 2
    PK7
    Utility to validate, extract, show and create digital documents included in files with "pk7" and "fp7" extensions such as electronic bills provided by some phone companies in Spain like Movistar and Telefonica.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 3
    Carting Management

    Carting Management

    Carting Management System

    CartingManagement is an application which will provide carting service provider total trucking and hauling management system. (Not to be confused with shopping cart or GoKarting ). Carting Service Providers are the people who supply materials and usually bill the customer monthly for the total monthly weight. The material they supply can be anything from metal food sand (construction materials) etc.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    ClassAccount for Macintosh has been changed to closed source and will no longer be forwarded here.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Atera - The depth of a full-stack IT platform, with the power of AI. Icon
    Atera - The depth of a full-stack IT platform, with the power of AI.

    Atera introduces your autonomous AI agent - Ensure operational efficiency at any scale with 24/7 autonomous IT support.

    Atera prioritizes security and compliance through robust protections that align with industry standards. Our AI-driven features were built on responsible AI principles and empower IT teams to work efficiently while maintaining trust and compliance.
    Learn More
  • 5
    OpenRDA, commercial FOSS fund accounting
    Governmental & non-profit accounting, hr & tax software for K12, local/municipal & non-profit entities of all sizes. Built using Qt, supports MYSQL & MYSQL Server. In production at 145 organizations across the US. Supported by OpenRDA, Inc.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6

    Simple Phone Billing

    A simple phone billing console-based app (C language)

    This simple console-based programme will launch an imaginary phone billing system. It is fully modularized with plain C functions to: 1) store number of calls to be billed (processed), 2) know call types to apply call type rate later, 3) know and act upon to apply extra charges, 4) store call duration and finally report a simple phone bill.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    Soccer_Bet_Accumulator
    The main point of this project is to create a program for calculate the profit of your bet. Read the help file for more informations about how to use the program and the input/output data
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    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: 0 This Week
    Last Update:
    See Project
  • 9
    Dit is een handig programmaatje om je uren en je uitgifte bij te houden. Ik heb dit gemaakt voor mezelf en een vriend. Ik ben er nog steeds mee bezig.
    Downloads: 0 This Week
    Last Update:
    See Project
  • eProcurement Software Icon
    eProcurement Software

    Enterprises and companies seeking a solution to manage all their procurement operations and processes

    eBuyerAssist by Eyvo is a cloud-based procurement solution designed for businesses of all sizes and industries. Fully modular and scalable, it streamlines the entire procurement lifecycle—from requisition to fulfillment. The platform includes powerful tools for strategic sourcing, supplier management, warehouse operations, and contract oversight. Additional modules cover purchase orders, approval workflows, inventory and asset management, customer orders, budget control, cost accounting, invoice matching, vendor credit checks, and risk analysis. eBuyerAssist centralizes all procurement functions into a single, easy-to-use system—improving visibility, control, and efficiency across your organization. Whether you're aiming to reduce costs, enhance compliance, or align procurement with broader business goals, eBuyerAssist helps you get there faster, smarter, and with measurable results.
    Learn More
  • Previous
  • You're on page 1
  • Next