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

  • Accounting Software for Small Businesses | Xero Icon
    Accounting Software for Small Businesses | Xero

    Save 90% for 6 months on Xero's award-winning accounting and online bookkeeping platform for businesses of all sizes and stages of growth.

    Xero offers a robust ecosystem of connected apps and integrations with banks and financial institutions, enabling small businesses to access a wide range of solutions within Xero's open platform to streamline operations and manage finances. Additionally, accounting and bookkeeping firms benefit from efficient compliance tools, advanced practice management software, and a cloud-based unified accounting ledger for all clients, centralized in one place.
    Get 90% off for 6 months
  • The next chapter in business mental wellness Icon
    The next chapter in business mental wellness

    Entrust your employee well-being to Calmerry's nationwide network of licensed mental health professionals.

    Calmerry is beneficial for businesses of all sizes, particularly those in high-stress industries, organizations with remote teams, and HR departments seeking to improve employee well-being and productivity
    Learn More
  • 1
    MAG Address is a desktop forms application(coded in Visual C# 2008) for looking up addresses from the Royal Mail PAF Database using just the postcode and the pasting that address into any other windows application using pre defined templates.
    Downloads: 0 This Week
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  • 2
    METHIS /data.mill for Excel®

    METHIS /data.mill for Excel®

    Cleanse, correct and enrich customer data directly in Microsoft Excel.

    METHIS /data.mill for Excel is a convenient way to cleanse, correct and enrich personal data of your customers and prospects directly in your Microsoft Excel. Simply mark all data you want to process, right click on them and choose your preferred function. The data will be processed in the blink of an eye and the result is written next to the origin data. Key Features: - check and enrich postal addresses (worldwide) - recognize the gender based on the first name - check the spelling and mail server of email addresses - check and unify phone numbers - resolve information of companies within the European Union - check your records for duplicate entries - split first name and last name - capitalization of names - and more easy-to-use functions ======================================== All functions included in the Excel Add-In are available as API to enable the implementation in custom solutions: https://gateway.methis.at
    Downloads: 0 This Week
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  • 3
    Extensible highly scalable ERP with encrypted XML backend; allows binding of any frontend (.NET,MONO,Java...).PlugIns:Contact management,disposition,invoices,reports,commAddon (e-mail,fax,TAPI,buddies,chat),osCommerce,StoreNuke, eBay,Amazon...
    Downloads: 0 This Week
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  • 4
    ObjeGts is a management system for small companies (typically 1-3 employees). Features planned for version 1.0 are: management of customers, products, orders and invoices. ObjeGts has a graphical user interface and runs on Linux and Windows.
    Downloads: 0 This Week
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  • Total Network Visibility for Network Engineers and IT Managers Icon
    Total Network Visibility for Network Engineers and IT Managers

    Network monitoring and troubleshooting is hard. TotalView makes it easy.

    This means every device on your network, and every interface on every device is automatically analyzed for performance, errors, QoS, and configuration.
    Learn More
  • 5
    Powerful Property Management System that allow you to manage your Cottages, Apartment Complexes, Commercial Properties, Condos, Self-Storage Units, Mobile Homes, and other rentals
    Downloads: 0 This Week
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  • 6
    OpenLoyalty is a framework to start loyalty marketing programs. Features include with points, discounts, rewards, members, campaigns, segmentation, analytics, and real-time reporting.
    Downloads: 0 This Week
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  • 7
    Orange Leap (formerly MPowerOpen) is the first full-feature open source constituent relationship management (CRM) software built specifically to grow nonprofit organizations of all shapes and sizes.
    Downloads: 0 This Week
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  • 8
    PSFGeneric: Solución CRM / ERPCraft
    PSFGeneric nace con el objetivo de unificar todos los procesos y gestiones de una empresa en una sola aplicación. Su arquitectura software permite la integración de sucesivos módulos de gestión y la interconexión entre todos ellos a modo de servicios internos.
    Downloads: 0 This Week
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  • 9
    Passage .NET Enterprise Portal provides content management and interactive web applications for Customer, Partner, and Employee portal applications.
    Downloads: 0 This Week
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  • EBizCharge Payment Platform for Accounts Receivable Icon
    EBizCharge Payment Platform for Accounts Receivable

    Getting paid has never been easier.

    Don’t let unpaid invoices limit your business’s growth. EBizCharge plugs directly into the tools your business already uses to speed up payment collection.
    Learn More
  • 10
    Qualis SugarCRM

    Qualis SugarCRM

    Complemento de Outlook 2010 para SugarCRM

    Este complemento de Outlook 2010 para SugarCRM permite la creación de objetos de SugarCRM desde Outlook y la sincronización.
    Downloads: 0 This Week
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  • 11
    Quoter

    Quoter

    Create perfect quotes quickly and easily everytime

    Quoter is an application developed to help all the small and medium sized businesses out there who are still struggling with hand written, or copy / paste quotations for their clients. This is slow and inefficient for even a small number of quotes. Rather use Quoter and get a uniform look and feel as well as speeding up the process of quoting. Your sales staff will love the application and the results will not take long to shine through as your new and professional image attracts more customers to your thriving business. This Software is written to be used in any business, big or small. If you're selling something, this is the software for you. Customized quotations, with the simplicity of simply clicking on what you want on the quote.
    Downloads: 0 This Week
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  • 12
    Rental Manager Pro is an application used to manage your rentals as a letting agent. Make sure rent is paid on time, generate client reports and keep in contact with your clients.
    Downloads: 0 This Week
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  • 13
    This project is a complete suite for companies to manage their Customer Base, Routing, Inventory, AR, Ticketing, and other management items related to the fields of Waste Management, Propane, Concrete, Harzard, and Petrol.
    Downloads: 0 This Week
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  • 14
    Church Management Software for small churches. Allows churches to track their members, Small Groups and Contributions. Designed to be a full featured Church Member Management System with some CRM and ERP and a full security system.
    Downloads: 0 This Week
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  • 15
    Skit (Sponsorship Kit) aims to track donations made by individuals and businesses to an organisation.
    Downloads: 0 This Week
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  • 16
    Develop/implement successful sales and marketing campaigns: monitor and manage customer health, address deviations in customer behaviors, capitalize on trends in customer sales activity, anticipate areas of greatest customer potential sales growth
    Downloads: 0 This Week
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  • 17

    SugarRestSharp

    SugarCRM .NET C# REST Client

    SugarRestSharp is a .NET C# SugarCRM CE 6.x API client. It is a Restful CRUD client that implements the SugarCRM module Create, Read, Update and Delete functionalities. SugarRestSharp implements following SugarCRM REST API method calls: oauth_access, get_entry, get_entry_list, set_entry, set_entries.
    Downloads: 0 This Week
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  • 18
    Tustena CRM is an Enterprise-Class Customer Relationship Management server written in C# for the .NET platform with many advanced features like Companies/Leads/Contacts Manager, Calendaring, Groupware, Email Marketing, Reporting, Orders, Catalogs, etc.
    Downloads: 0 This Week
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  • 19
    UniTrader

    UniTrader

    Trade multiple financial products from one advanced online trading

    UniTrader offers Global Brokerage Accounts and instant access to financial instruments around the world such as Stocks, Financial Sectors/ETFs, Indices, Currencies and Commodities. Whatever and wherever a customer wants to trade, UniTrader Brokerage Account and our trading platforms offer unparalleled accesses to the most liquid financial instruments in the world. UniTrader clients can trade the most well-known and most liquid financial products from a single screen through the UniTrader Brokerage Account. Our team of customer service specialists is constantly available to provide personal support to each and every customer.
    Downloads: 0 This Week
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  • 20
    CodeStory is an simple and easy to use crm project.
    Downloads: 0 This Week
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  • 21
    This project goal is maximize Supply Chain Management effective. so, we will build the system. This manage to resaler using result of forecasting demand. ※resaler in first connection with consumer.
    Downloads: 0 This Week
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  • 22
    customer-manager

    customer-manager

    Windows desktop graphical application to manage customers.

    Windows desktop software whose the principle is to manage a customer list from a local database (Microsoft Access) and to create spreadsheets (CSV, ODS & XLS files) which contains customers from the database.
    Downloads: 0 This Week
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  • 23
    dagoCRM should be an CRM-Tool for a small business company. It should contain: * detailed adress-informations * customer history * individual Reporting * easy customer stats * fast contract information * possibly an integrated (or a plugin?) dms * timema
    Downloads: 0 This Week
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  • 24
    The eStoreBuilder SDK is the fully customizable realtime eComShopping System. It simplifies MultiStores Management and admin n merchant level configs.Its integrated with modules for inventory, payment processing, UPS, shipping n handling, POS and so on.
    Downloads: 0 This Week
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  • 25
    A Windows .NET library for interfacing to iContact's CRM database. iContact (www.iContact.com) uses a REST interface and this project provides a C#, object-oriented translation layer to that interface for use in Windows apps and ASP.NET web apps.
    Downloads: 0 This Week
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