Open-source ERP with a free single-app tier
A modular open-source business suite spanning accounting, invoicing, inventory, CRM, HR and e-commerce.
Use when
You need more than invoicing - inventory, manufacturing or a full ERP - and want to avoid per-module SaaS pricing.
Skip when
You only need to send invoices, where a focused tool is running in an hour.
One app is free forever on the online plan, so invoicing alone costs nothing - the pricing bites when you add a second module. Being open source you can also self-host the community edition on a cheap VPS and pay nothing at all, which is how many African SMEs run it. Genuinely heavier to configure than a dedicated invoicing tool; budget setup time.
Alternatives
