Open-source alternatives to FreshBooks

2 community-reviewed projects you can use instead of FreshBooks.

1. InvoicePlane - InvoicePlane is a self-hosted, open-source invoicing application for freelancers and small businesses to manage clients, create and send quotes and invoices, and track payments, with multiple languages, currencies and tax rates, on your own PHP/MySQL server. (Licence: NOASSERTION)
2. InvoiceShelf - Free, open-source, self-hosted invoicing software for freelancers and small businesses to send polished invoices and estimates, set up recurring billing, track expenses and payments, and give clients a portal — all on your own server. (Licence: AGPL-3.0)