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Top Rated Billing and Invoicing Software with Open source - Page 22

Last updated: July 2026

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976 software options

Tradeshift logo

Electronic invoicing, payments and accounts payable solution

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Tradeshift is a supplier management and invoicing platform that harnesses the power of your network to create new value from old processes like invoicing, payments and workflow. The entire Tradeshift platform is transparent and completely compatible with mobile applications, for on the go access.

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Flint Mobile Payments logo

Mobile Credit Card Processing (USA Only)

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Flint enables small businesses to accept credit cards from their phone via mobile app without magnetic card readers.It uses camera to capture the credit card number. It can send an invoice via email and can denote acceptance of cash into transaction log and deliver digital receipts.

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Cimmra eInvoicing and AP Management logo

Invoicing Software

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Full-featured invoicing software solution that helps large organizations manage their AP process, from payment to settlement and reconciliation.

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miDESPACHO logo

Facturación para asesorías y despachos profesionales

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miDespacho es el software de facturación en la nube para despachos y autónomos. Automatiza el ciclo de facturación, genera remesas SEPA y exporta asientos contables. Compatible con Verifactu. Precio justo y predecible basado en el número de CIFs — sin sorpresas.

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Spenmo logo

Payment processing and expense management solution

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Spenmo offers an all-in-one payments platform that enables startups and SMEs to automate the management of their business payments.

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Alert logo

Business management system for professional organizations

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Alert is a business management system with which professional service organizations can manage billing and invoicing processes effectively & efficiently

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DealTrack logo

Simplify your B2B trading

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DealTrack is a software solution that helps organisations manage complex trading agreements involving retrospective payments, such as rebates, retrospective discounts, royalties, purchase income and back margin.

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Corenio logo

"Corenio: Streamlining SME Operations Effortlessly"

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Elevate your SME with Corenio: A comprehensive suite for seamless order, inventory, and shipping management. Optimize operations, boost efficiency, and drive growth. Discover the power of integration and scalability. Transform your business with Corenio today!

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MediSked Connect logo

Centralize & Manage Information Across Your Provider Agency

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MediSked Connect centralizes and manages information in order to transform service delivery across provider agencies with simple modules for scheduling, billing, individual plans and outcomes, reporting, and documentation.

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PandaDoc logo

Cloud-based tool for creating, editing and signing documents

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Sales teams can collect payments directly inside their PandaDoc proposals, quotes and contracts as soon as the documents get eSigned. You can further integrate via Zapier with accounting and invoicing software like Freshbooks and Quickbooks online.

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TimeLive logo

Time and Expense Tracking for Project Management

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Billing Rate Setup,
Real Time Analysis,
Tax Option,
Logo and Footers,
Customized Report,
Multi Currency,
Billed/Unbilled,

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Versapay logo

Accounts receivable automation platform

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Unlock invoice-to-cash efficiency by automating invoicing and billing, facilitating payments, and streamlining cash application with AI.

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BoondManager logo

Enterprise process management (ERP) and resource management

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BoondManager is an enterprise process management (ERP) and resource management software that helps businesses manage projects, track invoices, handle prospecting, monitor expenses, and more on a centralized platform. With the recruitment management module, staff members can manage all the team files

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Flowers logo

Workflow automation and resource management software

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Flowers is an all-in-one workflow automation and resource management solution designed to streamline operations, reduce costs, and provide unparalleled visibility. Build custom workflows, manage resources, and gain real-time insights to revolutionize your business processes with ease and flexibility.

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onPhase logo

Accounts payable and document automation platform

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onPhase helps businesses automate back-office accounting processes, customer-facing dashboards and portals. The solution provides tools required to organize and automate all accounting processes.

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Zervant logo

Easy Invoicing Software for Small Business Owners

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Use Zervant to create and send invoices, estimates and receipts in under 30 seconds. It's completely free to use.

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Gigwell logo

Cloud-based booking management software.

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Gigwell is a cloud-based booking management software, designed to help marketing, event management, media production, artist management, and other entertainment sectors, streamline reservations, payment processing, sales tracking, and more. It helps event managers track booking status, view upcoming events, access agent details, and manage artists’ profiles from a centralized platform.

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Lighthouse.io logo

workforce and asset management software

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Lighthouse is a mobile-first solution using GPS, sensors & automation to prove service, reduce costs & streamline operations. Ensure your workforce is on-site through live tracking. Capture work through tasks, incidents & audits. Improve customer satisfaction with automated reporting & alerts.

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Gen GST Software logo

GST return filing and billing software

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Gen GST Software enables businesses to manage Goods and Services Tax compliance through unlimited return filing and billing capabilities. The solution supports multiple GSTR forms including GSTR-1, GSTR-3B, GSTR-4, GSTR-9, and GSTR-9C, while offering e-invoicing and e-way bill generation features. It provides data import functionality from Excel, Tally, and government portals, along with reconciliation tools for matching tax credits and identifying discrepancies between returns.

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ePayco logo

Comprehensive payment & invoicing solution in Colombia

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ePayco is a technology company that has developed financial solutions that contribute to the different business models and payments of companies in Colombia. Taking into account that agility, transactional security and user experience are key factors for electronic commerce.

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MyFattura logo

Cloud-based Invoicing Platform

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MyFattura is a cloud-based invoicing platform. It is a complete solution for businesses that need an easy way to create, send and manage their invoices.

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incwo logo

Cloud-based business management software

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incwo is a cloud-based software designed to help businesses in manufacturing, automotive, trading, finance, and other industries manage sales, purchases, inventory, production, and more via a unified portal. The application enables organizations to configure accounting codes for suppliers, customers, expense accounts, and taxes, export entries to journals, connect bank accounts to import and reconcile statements, and handle cashflow.

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MaxBill logo

Multi-Utility, Energy, High Tech, Telecom.

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MaxBill Utility Billing Software facilitates service providers' business growth by giving the full control over the company's operations, allowing for easy introduction and control of new services, partner onboarding and customer experience management.

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Zahara logo

Transform Your Business with Full-Scale AP Automation

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Zahara controls business spend with purchase orders, invoice approvals, and secure payments—removing admin and enforcing policy.

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Alternative Payments logo

Global payment management platform for eCommerce enterprises

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Alternative Payments is a cloud-based global payment management platform designed to help eCommerce enterprises expand their revenue streams

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