ERPNext is a free and open-source integrated Enterprise Resource Planning (ERP) software developed by Frappé Technologies Pvt. Ltd. and is built on MariaDB database system using a Python based server-side framework.




The best Invoicing alternative to Odoo is ERPNext, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Odoo and many of them are Invoicing Software so hopefully you can find a suitable replacement. Other interesting Invoicing Software alternatives to Odoo are Dolibarr, Bitrix24, Intuit QuickBooks and Laza.
ERPNext is a free and open-source integrated Enterprise Resource Planning (ERP) software developed by Frappé Technologies Pvt. Ltd. and is built on MariaDB database system using a Python based server-side framework.




Dolibarr ERP & CRM is a modern and easy to use open-source web software package to manage your business (customers, invoices, orders, products, stocks, agenda, e-mailings, shipments...).




Replace a multitude of services and apps with a single ecosystem for your business to work in. Explore the tools of Bitrix24.




Offers accounting software with payroll, bookkeeping, invoicing, app integration, and inventory tools. Four plans cater to businesses of all sizes. Automates reconciliation and shares with accountants seamlessly. Higher tiers add project tracking.




Online billing software to simplify your business. Invoicing, subscriptions (reoccurring invoices), purchase orders, online payments, customer management, product management, multiple company identities, reporting and white label service.
Bigcapital is a smart and open-source accounting and inventory software, Bigcapital keeps all business finances in right place and automates accounting processes to give the business powerful and intelligent financial statements and reports to help in making decisions.




Cloud accounting platform for business providing invoicing, quote management, cash flow tracking, bill payments, expense claims, payroll automation, project tracking, contract management, advanced analytics, and integration with payment gateways like Stripe and GoCardless.




InvoicePlane is a self-hosted open source application for managing your quotes, invoices, clients and payments. The application comes with various options, templates and settings to customize your invoicing experience.



One central platform to sell, bill and organise your work. Stop the mess with information spread across different tools, Excel sheets, and inboxes, and collaborate efficiently with your colleagues.




Composity is a cloud based ERP/CRM/E-Commerce solution extended with Sales & Marketing tools. Designed especially for SMEs.




Connected Accounting is a financial services company that offers automated solutions for entrepreneurs and business owners. Their services include outsourced accounting, tax preparation, financial reporting, and business consulting.



The LedgerSMB project provides small and mid-size businesses with open source accounting software: integrating invoicing, order processing, quotations and more (ERP). LedgerSMB aims to provide a strong (multi-currency accounting) basis to build your business on -- without vendor...




True Open Source without hidden payments for certain features