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Top Rated Billing and Invoicing Software with Open source - Page 8

Last updated: July 2026

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977 software options

AccountGroove logo

Smart proposal & billing software

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AccountGroove is a smart proposal and billing software. It helps accounting practices win clients, automate billing, and get paid faster all in one platform. AccountGroove streamlines engagement letters, invoices, and payments while integrating with popular accounting tools.

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LogiSense Billing logo

Leading the usage-based billing economy.

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We believe that people should pay only for the services they want and use. LogiSense provides of real-time usage and subscription-based billing solutions. We help businesses configure modern, sophisticated billing scenarios, allowing XaaS, telecom, enterprise and IoT companies to diversify their off

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Werx logo

Cloud-based construction management software.

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Werx simplifies billing and invoicing for contractors with tools like AIA billing, T&M tracking, and QuickBooks integration. Send professional invoices, manage retainage, and offer clients secure online payments via Stripe to accelerate cash flow and keep projects running smoothly.

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Tesorio logo

AR automation puts your cash in a state of flow.

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Tesorio AR Automation empowers finance teams to collect cash faster by automating key processes and providing valuable insights on when to collect and communicate with your customers. Tesorio connects with your ERP to make sure every invoice is followed up with quickly and accurately.

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Open logo

Banking and financial operations management platform

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Open is a cloud-based software designed to help startups and small to midsize enterprises manage payments, virtual accounts, cash, invoices, taxes, expenses, and more via a unified portal. The platform includes payroll management functionality, which enables businesses to track employees’ attendance and leaves, create payslips, and analyze reports for reference.

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Emburse Invoice Enterprise logo

Accounts payable solution for accounting firms

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Chrome River INVOICE is an accounts payable software that helps businesses in education, healthcare, legal, banking, and other sectors capture and manage invoices. It enables managers to store, approve, and track the status of various invoices in real-time on a unified dashboard.

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DualEntry logo

AI-native accounting

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DualEntry is an AI-native accounting software designed for high-growth enterprises, offering a general ledger, automated close management, tax compliance, and integrations. With security, real-time insights, and global compliance, it helps users streamline financial operations.

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Indy logo

All in one application for freelancers !

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Online application that helps self-employed automate accounting, from expense tracking to tax filling and bank reconciliation.

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Membri logo

Powerfull membership management solution for associations

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Membri centralizes member data, automates billing, events, and communications. Compatible with Microsoft and Mailchimp, it streamlines registration, invoicing, and outreach—helping associations save time and grow efficiently.

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HAL ERP logo

The only conversational ERP

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HBS is a unique business system designed to help businesses manage and automate their key operations - Procurement, Sales, Inventory, Finance, HR, Manufacturing, Production, Quality control, and Compliance.
In addition, the simplified reporting tool makes it easy to pull out infinite custom reports

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Canopy logo

Practice management software for accounting firms

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Award-winning, all-in-one accounting practice management platform. Canopy replaces disconnected tools by unifying your CRM, workflows, document storage, and billing. Maximize firm capacity under one login with purpose-built AI tools like Canopy Coworker and Notetaker.

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Buku logo

Business runs on it !!

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Buku is a powerful ERP solution designed for small businesses. Simplify invoicing, billing, and inventory management with an intuitive, all-in-one platform. Automate tasks, gain real-time financial insights, and manage your business efficiently from anywhere with Buku’s cloud-based accessibility.

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ScaleXP logo

Smart Finance Automation

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ScaleXP automates revenue recognition, prepayments, KPIs, dashboards and presentations saving you days of work with spreadsheets and enabling you to have valuable, industry specific metrics and professional looking presentations, customised to your needs and colours, available in real time.

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GetCost logo

Contractor estimate and invoice made easy

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Save time and look professional. Manage your business like a pro. Don't miss an opportunity to impress your clients!

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Prodmode logo

Fashion production and sales management system

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Prodmode is an enterprise resource planning system designed for fashion brands and wholesalers, offering production, sales, and inventory management capabilities. The platform includes product lifecycle management tools that organize styles, raw materials, production tracking, and purchasing processes. Prodmode integrates with multiple sales channels to facilitate order management, invoicing, and shipment tracking for emerging brands, small to medium businesses, and luxury fashion companies.

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Rebillia Platform logo

Subscription management software

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A fully customizable, flexible, and scalable enterprise-level recurring orders and subscription billing engine suited for any business.

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InGeek logo

Inventory management & procurement process automation tool

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Designed for manufacturers, contracting firms, hospitals, and suppliers, InGeek is a SaaS inventory management & procurement process automation solution that helps administrators monitor stock counts, create vendor lists, and prevent understocking of products on a centralized platform.

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Routable logo

Onboard, pay, and manage payees at scale with Routable.

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Routable is a payout orchestration platform that helps enterprise businesses onboard vendors, automate compliance, and scale high-volume payouts globally. Our Developer-friendly API and operational controls give teams the flexibility to seamlessly integrate payouts into any experience.

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Epay Manager logo

Online billing system with automated invoice creation

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Epay Manager Powered by OTR Solutions is a web-based back-office automation and carrier payments and billing platform designed specifically for the transportation industry to help freight brokers reduce costs and increase efficiencies of their back-office operations.

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Online Check Writer logo

Software for managing payments and accounting operations

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OnlineCheckWriter.com is check printing software and a B2B payment platform with 30+ business payment tools. Pay and get paid with checks, eChecks, ACH, wires, international payments, and credit cards. Connects with QuickBooks, Xero, and more.

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Invoicity logo

Billing and invoicing solution

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Invoicity is a mobile-first invoicing & estimating app for freelancers, contractors and service-based SMBs. Create a professional invoice on iOS or Android in under 2 minutes and get paid instantly via built-in Stripe checkout links. Unlimited businesses, branded PDF templates and many more.

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PayIt logo

Payment processing software for the government sector

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PayIt is a point of sale software designed to help businesses in the government sector digitize services and consolidate payments regarding vehicle registrations and licensing. The platform enables managers to add money and automate payments on specific dates from selected accounts.

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Stax Bill logo

Subscription management and recurring billing software

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Fusebill automates customer billing with customizable invoices, a built-in payment gateway, and support for taxation, subscription management, accurate revenue recognition and more. Easily tackle your complex billing needs – from simple one-time transactions, usage-based pricing and pro-ration.

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FacturaScripts logo

Open source ERP software for small business

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FacturaScripts is an open source invoice software and ERP for small business. Is written in PHP 7 and can be extended by plugins.

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Ordway logo

Billing & invoicing automation platform

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Ordway is a billing and invoicing automation platform that helps small to midsize businesses collect payments, send invoices, and manage revenue. The solution comes with features such as usage and volume-based billing, recurring subscription management, dunning workflows, custom forms, & more.

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