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Top Rated Billing and Invoicing Software with Open source - Page 2

Last updated: July 2026

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977 software options

SumUp Invoice logo

Billing & invoicing system for creating & tracking invoices

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SumUp Invoices is a professional invoice solution that businesses can use to create, send and track invoices right away. With SumUp Invoices, professionals can easily create an invoice in under 3 minutes and get paid faster without any hidden costs.

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SumUp logo

POS and payments processing software

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SumUp offers card readers and POS systems designed for small businesses across various industries. The platform provides comprehensive payment solutions including portable card readers, self-service kiosks, and invoicing capabilities. SumUp also features financial management tools such as business checking accounts and customer engagement options through gift cards and reward programs, all accessible through a single mobile application.

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Invoice Home logo

Billing and invoicing software for small businesses

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Invoice Home is an invoicing software for freelancers and small businesses that helps create, customize, and send invoices in PDF format using templates and options for adding a personalized logo.

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Invu POS logo

Cloud-based POS solution for service businesses.

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Invu POS is a cloud-based point of sale (POS) solution that helps businesses in retail, healthcare, hospitality, and other industries manage sales, marketing, and payment processes. The platform offers various features such as inventory tracking, customer billing, reporting/analytics, mobile access, campaign management, integration capabilities, and more.

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Synder logo

Reconcile multichannel sales & recognize revenue with ease.

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Synder helps SME and MidSize up sync, record and recognize online sales and subscriptions in QuickBooks, Sage Intacct or Xero. The platform ensures accurate reconciliation across multiple platforms and offers easy invoicing, transaction categorization and instant data analytics.

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Saleoid logo

Best CRM Software for leads, sales, marketing & billing

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Saleoid is the Best CRM Software for startups, agencies & SMBs an all-in-one platform to generate leads, manage sales, run marketing, and handle billing in one connected system. Starts at $5/month (2-year plan).

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Marketing 360 logo

Marketing Platform For Small Business

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Send invoices with ease
Create and send online invoices and estimates in minutes. Get paid in one click 24/7 from any device. Keep track of the status of all your invoices in real time from one place.

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ERP Cloud Toolbox logo

More4apps is your Excel interface for Oracle.

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Power through your daily tasks and eliminate tools that are hard-to-use, speed through data conversions and migrations, and gain trust in your data.

No knowledge or training of the data interface mechanisms is needed, as More4apps products seamlessly connect with Oracle Fusion Cloud Applications.

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EBS Toolbox logo

More4apps provides data loading solutions for Oracle EBS.

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More4apps helps users efficiently and effectively streamline their data within an easy-to-use Excel spreadsheet.

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LawnPro logo

Lawn care software for managing administrative operations

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LawnPro is a cloud-based lawn care software that helps businesses manage administrative operations and communicate with customers, crew members, and employees via text messages. It lets users handle multiple properties, print invoices, and receive online payments from customers via credit cards.

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Rippling logo

Workforce management across HR, finance, and IT. 

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Rippling Spend: Consolidate your business’s corp cards, bill pay, travel and expense management, into one modern system with built-in approvals, custom policies, and automatic reconciliation.

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Elorus logo

Cloud Invoicing & Time Tracking for modern professionals

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Discover a super-easy online invoicing & billing software that helps you focus on making your professional mark in the business world. Start with our lifelong free plan!

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SuiteDash logo

All-in-One Business Software

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Perfect for small to medium-sized businesses looking for a cost-effective, all-in-one platform to integrate CRM, project management, billing, and client portals, SuiteDash simplifies operations, boosts productivity, and reduces overhead costs. Save time and money while streamlining your workflow wit

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Fieldd logo

Service your city faster.

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Fieldd is a cloud-based field service management software that uses AI (artificial intelligence) technology to help manage tasks, scheduling, dispatch, conversion tracking, online bookings, POS (point of sale), CRM (customer relationship management), and more.

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Refrens logo

Business operating system sales, accounting, and inventory.

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Refrens is a business operating system that helps you with invoicing, accounting, bookkeeping, sales, inventory, client & vendor management, and other day-to-day business operations.

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Lightyear logo

Intelligent Purchasing & AP Automation Platform

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Lightyear is an intelligent purchasing & accounts payables automation solution that assist finance teams with automating approvals across different workflows using advanced data extraction, rule-based automation, customizable workflows, and built-in collaboration tools.

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Flowlu logo

Work automation and team collaboration in one platform.

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Keep all financial records in one place with real-time insights and visual reports to track expenses and boost revenue. Create and send professional invoices in seconds, accept online payments, and automate billing to streamline cash flow. Stay organized, get paid faster, and impress your clients.

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Noda logo

Software for secure online payments and transactions

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Noda is a comprehensive online payment platform that streamlines transactions for businesses and individuals. The platform harnesses the power of open banking and APIs to elevate the customer experience, offering a range of features such as fast and secure bank transfers, easy card payment processing, and a streamlined checkout experience. Noda prioritizes efficiency, security, and customer delight.

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Abby logo

Billing and invoicing platform

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Abby helps businesses ensure that customer documents are legal and comply with the rules. Customers can pay online and receive reminders for late payments.

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Bill4Time logo

Cloud-based billing and invoicing tool for law firms.

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Fast and easy client billing ensures that you aren't spending your valuable time doing back office work. With flexible billing methods with hourly and flat fee.

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Timesheets.com logo

Time tracking, payroll, and billing for businesses

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Timesheets.com tracks time and expenses to produce reports and exports to software like QuickBooks for invoicing.

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SimpleVMS logo

Cloud-based software for managng vendors

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SimpleVMS is a cloud-based vendor management software specifically created to find the best candidates and reduce cost as well as administrative burdens.

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PayPal Invoicing logo

Free online invoice creation and sending

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PayPal Invoicing is a free solution for creating and sending online invoices within a PayPal Business account. The tool allows users to create custom-branded invoice templates, populate billing details, track payments, view billing histories, schedule invoices, accept partial payments, and more.

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Agiled logo

Software for managing business operations

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Agiled is a cloud-based business management software designed to help businesses of all sizes manage invoicing, contracts, employees, finances, and other operations on a unified portal. Its project management capabilities allow organizations to handle tasks, project details, and team members using customizable templates, view, edit and share schedules with clients using Gantt Charts and create and assign tasks to teams.

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Everhour logo

Time tracking, scheduling, budgeting & expenses software.

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Everhour is a time tracker that can facilitate the billing & invoicing process and integrate with the most popular accounting software such as QuickBooks, Xero, and FreshBooks. Сhoose a billing method, set a billing rate, automate your invoicing process, and keep track of your finances fully.

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