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Top Rated Billing and Invoicing Software with Open source - Page 38

Last updated: July 2026

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977 software options

Velosi ERP logo
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Enterprise Resource Planning Software

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VAIL-ERP is an application that provides integrated, cost-effective, and comprehensive ERP solutions. It automates the data related to accounts, employees, materials, cost time resources, procurement, and payroll generation of a company with seamless integration at all levels.

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Timesible logo
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Cloud-based time tracking and project management software

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Timesible is an all-in-one time tracking and project management tool designed to help project managers and teams stay organized, track progress, manage budgets, and streamline invoicing. With an intuitive interface and powerful features, Timesible simplifies workflows and enhances productivity.

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dsosuite logo
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Solution for the acquisition and management of receivables

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iQera guides companies through the acquisition and management of receivables with its SaaS solution known as dsosuite. It helps companies control risk and transform finance, credit, and customer relationship functions with an empathetic approach to improving performance.

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Aikount logo
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AI accounting agent for autónomos, pymes & gestorías

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AI-powered accounting for Spanish freelancers & SMEs: automate invoicing, bank reconciliation and IVA/Modelo 303 with an agent.

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Bolo logo
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Invoicing for Chile’s independent workers

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Bolo is an assistant software that helps freelancers in Chile manage invoices and expenses through WhatsApp.

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Mi Invoices logo
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Automated Invoice Processing Cloud Service

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Customers of the Oracle Fusion Cloud & E-Business Suite that produce more than 30,000 invoices annually and need automated invoice processing for their accounts payable staff.

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GoSimple Software logo
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Small business digital accounting software

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GoSimpleBooks is a simple and intuitive digital accounting software application, suitable for all small UK businesses and their accountants

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ReveniQ logo
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Revenue intelligence solution for SaaS businesses

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ReveniQ is a cloud-based solution that provides revenue analytics and financial management solutions tailored for SaaS businesses. Integrating invoicing, billing, and customer data into a unified platform helps users monitor churn risks, manage subscriptions, and generate insightful financial reports.

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Tempolia logo
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Billing and invoicing software

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Tempolia is a billing and invoicing software specialized in time management for accounting firms, law firms, and design offices.

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SASA logo
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Cloud-based accounting software for self-employed people

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SASA is a cloud-based accounting software that helps freelancers, self-employed people, and solopreneurs create invoices, track expenses, and more.

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C2FO logo
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Revolutionizing working capital online

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C2FO is an accounting and budgeting software that gives you complete online control over your enterprises finances and accounting. From your C2FO accounting dashboard you can control and monitoring your company's entire financial flow and make snapshots of important data which in turn can be exported along with graphs and charts.

All C2FO data is displayed in real-time with live analytics and reports.

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Pagero logo
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Order management and purchasing solution

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The Pagero Network helps buying and selling businesses digitalize and automate the exchange of orders, delivery documents, invoices, and payments in accordance with local legal requirements.

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TimeSmart.AI logo
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Clinician invoice management & contract compliance software

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TimeSmart.AI's proprietary algorithms learn from the clinician contracts that are uploaded into the solution. The system is designed to be contract compliance tool that alerts the appropriate people when the invoices and payments do not align with contractual obligations.

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Invoice Maker logo
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Streamline the invoicing &billing process with Invoice Maker

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Invoice Maker makes the process of creating invoices and sending them to customers more manageable and convenient. Now you have a modern tool at your fingertips that allows you to generate payment papers on the go at any device and send them to recipients in seconds.

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Track and Invoice logo
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Time tracking & invoicing for service businesses

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Track & Invoice is a cloud-based time tracking and invoicing solution designed for freelancers, contractors, and small service businesses. The platform allows users to log billable hours, materials, and expenses, then convert these entries into professional invoices that can be sent via email as PDF documents. It includes features for organizing work by client and project, tracking payment status, managing unlimited team members, and accepting payments through credit card or ACH bank transfer.

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CherryWorks Pro logo
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Operating system for professional services firms

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Billing and invoicing software with Stripe-native card and ACH payments, a full recurring billing engine, and configurable dunning. Developer REST API, HMAC-signed webhooks on every invoice and payment event, PCI-scoped infrastructure, multi-currency support, and unlimited invoices on every plan.

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Affnook logo
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Affiliate tracking platform for iGaming brands

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Affnook is an affiliate tracking solution for iGaming brands and operators that helps manage relationships with affiliates by providing custom tracking links and performance analytics.

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OpusCapita logo
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E-flow to B2B buying & selling

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Digital supply chain document exchange from e-orders and e-invoices, AP automation, and procurement solutions for an efficient B2B business flow.

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Trolley logo
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Payment management solution

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Trolley is a payment management solution that helps small businesses streamline operations related to one-time and subscription based transactions. Administrators can utilize the activity dashboard to gain visibility into payments and subscription history.

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Expodite logo
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Empower Exports with Expodite's Cloud Solution.

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Expodite is a robust cloud-based order management platform tailored for exporters in India. It simplifies inventory, streamlines documentation, optimizes shipping, and enhances communication.

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Kiwili logo
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All-in-one software for managing accounting & project tasks

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Kiwili is an all-in-one business management platform that offers a range of features including accounting, project management, invoicing, estimates, time tracking, task organization, and much more. With Kiwili, businesses can streamline their operations and improve efficiency by managing various aspects of their business on a single platform. The platform provides detailed reports to help businesses analyze performance. Kiwili cam simplify team collaboration regardless of location.

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LegFi logo
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Payment processing & financial reporting solution

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LegFi is an invoicing, payment processing, expense tracking and financial reporting solution for member groups, associations, fraternities, sororities and more

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Loopfour logo
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AI-powered financial automation platform

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JustPaid is an AI automated software solution that streamlines contracts to invoicing, bill payment, and revenue operations.

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HelloBooks logo
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AI bookkeeping software for small businesses

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HelloBooks is AI-powered bookkeeping software designed for small and medium-sized businesses. The platform offers automated transaction categorization, bank reconciliation, and financial reporting capabilities. It integrates with accounting systems including Tally and QuickBooks USA, with additional integrations planned for Xero, Zoho Books, NetSuite, and payment platforms like Stripe and PayPal.

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Werkli logo
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Job and invoice management for Swiss tradespeople

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Werkli is an administration and invoicing software designed for Swiss tradespeople and contractors. The platform enables users to manage projects from initial quote to final payment, including time tracking, material documentation, and QR invoice generation. It functions offline with local data storage and automatic synchronization, and includes features such as customer relationship management, calendar scheduling, document management, and accounts receivable tracking.

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