Invoice Ninja

Invoice Ninja is a mature open-source platform for invoicing, quotes, payments, and expense tracking, an alternative to FreshBooks for freelancers and businesses. It creates professional invoices and quotes, supports recurring billing and subscriptions, tracks expenses and time, and connects to a wide range of payment gateways so clients can pay online. A client portal lets customers view and pay invoices, while reporting and a companion mobile app round out a complete billing toolkit.

StoresWiki LLC provides Invoice Ninja as a managed, privately hosted service. We deploy a secured instance, keep it patched and updated, monitor it, and run regular backups of your financial data, so your billing operation stays dependable without server maintenance. Self-hosting keeps every invoice, client record, and payment detail on infrastructure you own, with no per-seat SaaS fees and no caps on clients or invoices behind upgrade tiers.

This fits freelancers, agencies, and small to mid-sized businesses that need full-featured invoicing and online payments with complete data ownership and predictable hosting cost.